bugfix hid cancel

Fix typo in CERN OHL version 2.1 -> 1.2

.all-contributorsrc

@@ -207,6 +207,17 @@
         "infra",
         "test"
       ]
+    },
+    {
+      "login": "Nitrokey",
+      "name": "Nitrokey",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/9438831?v=4",
+      "profile": "https://www.nitrokey.com",
+      "contributions": [
+        "code",
+        "test",
+        "ideas"
+      ]
     }
   ],
   "contributorsPerLine": 7,

Makefile

@@ -1,3 +1,5 @@
+include fido2/version.mk
+
 #define uECC_arch_other 0
 #define uECC_x86        1
 #define uECC_x86_64     2
@@ -6,44 +8,34 @@
 #define uECC_arm_thumb2 5
 #define uECC_arm64      6
 #define uECC_avr        7
-
 ecc_platform=2
 
-src = $(wildcard pc/*.c) $(wildcard fido2/*.c) $(wildcard fido2/extensions/*.c) \
+src = pc/device.c pc/main.c
-	$(wildcard crypto/sha256/*.c) crypto/tiny-AES-c/aes.c
 
-obj = $(src:.c=.o) crypto/micro-ecc/uECC.o
+obj = $(src:.c=.o)
 
 LIBCBOR = tinycbor/lib/libtinycbor.a
+LIBSOLO = fido2/libsolo.a
 
 ifeq ($(shell uname -s),Darwin)
   export LDFLAGS = -Wl,-dead_strip
 else
   export LDFLAGS = -Wl,--gc-sections
 endif
-LDFLAGS += $(LIBCBOR)
+LDFLAGS += $(LIBSOLO) $(LIBCBOR)
 
-VERSION_FULL:=$(shell git describe)
-VERSION:=$(shell python -c 'print("$(VERSION_FULL)".split("-")[0])')
-VERSION_MAJ:=$(shell python -c 'print("$(VERSION)".split(".")[0])')
-VERSION_MIN:=$(shell python -c 'print("$(VERSION)".split(".")[1])')
-VERSION_PAT:=$(shell python -c 'print("$(VERSION)".split(".")[2])')
 
-VERSION_FLAGS= -DSOLO_VERSION_MAJ=$(VERSION_MAJ) -DSOLO_VERSION_MIN=$(VERSION_MIN) \
+CFLAGS = -O2 -fdata-sections -ffunction-sections -g
-	-DSOLO_VERSION_PATCH=$(VERSION_PAT) -DSOLO_VERSION=\"$(VERSION_FULL)\"
+ECC_CFLAGS = -O2 -fdata-sections -ffunction-sections -DuECC_PLATFORM=$(ecc_platform)
 
-CFLAGS = -O2 -fdata-sections -ffunction-sections $(VERSION_FLAGS) -g
+INCLUDES =  -I../ -I./fido2/ -I./pc -I../pc -I./tinycbor/src
-
-INCLUDES = -I./tinycbor/src -I./crypto/sha256 -I./crypto/micro-ecc/ -Icrypto/tiny-AES-c/ -I./fido2/ -I./pc -I./fido2/extensions
-INCLUDES += -I./crypto/cifra/src
 
 CFLAGS += $(INCLUDES)
-# for crypto/tiny-AES-c
+CFLAGS += -DAES256=1  -DSOLO_EXPERIMENTAL=1 -DDEBUG_LEVEL=1
-CFLAGS += -DAES256=1 -DAPP_CONFIG=\"app.h\" -DSOLO_EXPERIMENTAL=1
 
 name = main
 
-.PHONY: all $(LIBCBOR) black blackcheck cppcheck wink fido2-test clean full-clean travis test clean version
+.PHONY: all $(LIBCBOR) $(LIBSOLO) black blackcheck cppcheck wink fido2-test clean full-clean travis test clean version
 all: main
 
 tinycbor/Makefile crypto/tiny-AES-c/aes.c:
@@ -53,7 +45,10 @@ tinycbor/Makefile crypto/tiny-AES-c/aes.c:
 cbor: $(LIBCBOR)
 
 $(LIBCBOR):
-	cd tinycbor/ && $(MAKE) clean && $(MAKE)  LDFLAGS='' -j8
+	cd tinycbor/ && $(MAKE)  LDFLAGS='' -j8
+
+$(LIBSOLO):
+	cd fido2/ && $(MAKE) CFLAGS="$(CFLAGS)" ECC_CFLAGS="$(ECC_CFLAGS)" APP_CONFIG=app.h -j8
 
 version:
 	@git describe
@@ -62,16 +57,13 @@ test: venv
 	$(MAKE) clean
 	$(MAKE) -C . main
 	$(MAKE) clean
-	$(MAKE) -C ./targets/stm32l432 test PREFIX=$(PREFIX) "VENV=$(VENV)" VERSION_FULL=${VERSION_FULL}
+	$(MAKE) -C ./targets/stm32l432 test PREFIX=$(PREFIX) "VENV=$(VENV)" VERSION_FULL=${SOLO_VERSION_FULL}
 	$(MAKE) clean
 	$(MAKE) cppcheck
 
-$(name): $(obj) $(LIBCBOR)
+$(name): $(obj) $(LIBCBOR) $(LIBSOLO)
 	$(CC) $(LDFLAGS) -o $@ $(obj) $(LDFLAGS)
 
-crypto/micro-ecc/uECC.o: ./crypto/micro-ecc/uECC.c
-	$(CC) -c -o $@ $^ -O2 -fdata-sections -ffunction-sections -DuECC_PLATFORM=$(ecc_platform) -I./crypto/micro-ecc/
-
 venv:
 	python3 -m venv venv
 	venv/bin/pip -q install --upgrade pip
@@ -98,20 +90,20 @@ DOCKER_TOOLCHAIN_IMAGE := "solokeys/solo-firmware-toolchain"
 
 docker-build-toolchain:
 	docker build -t $(DOCKER_TOOLCHAIN_IMAGE) .
-	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${VERSION}
+	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${SOLO_VERSION}
-	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${VERSION_MAJ}
+	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${SOLO_VERSION_MAJ}
-	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${VERSION_MAJ}.${VERSION_MIN}
+	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${SOLO_VERSION_MAJ}.${SOLO_VERSION_MIN}
 
 uncached-docker-build-toolchain:
 	docker build --no-cache -t $(DOCKER_TOOLCHAIN_IMAGE) .
-	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${VERSION}
+	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${SOLO_VERSION}
-	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${VERSION_MAJ}
+	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${SOLO_VERSION_MAJ}
-	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${VERSION_MAJ}.${VERSION_MIN}
+	docker tag $(DOCKER_TOOLCHAIN_IMAGE):latest $(DOCKER_TOOLCHAIN_IMAGE):${SOLO_VERSION_MAJ}.${SOLO_VERSION_MIN}
 
 docker-build-all: 
 	docker run --rm -v "$(CURDIR)/builds:/builds" \
 					-v "$(CURDIR):/solo" \
-				    $(DOCKER_TOOLCHAIN_IMAGE) "solo/in-docker-build.sh" ${VERSION_FULL}
+				    $(DOCKER_TOOLCHAIN_IMAGE) "solo/in-docker-build.sh" ${SOLO_VERSION_FULL}
 
 CPPCHECK_FLAGS=--quiet --error-exitcode=2
 
@@ -128,6 +120,7 @@ clean:
 	    	(cd `dirname $$f` ; git checkout -- .) ;\
 	    fi ;\
 	done
+	cd fido2 && $(MAKE) clean
 
 full-clean: clean
 	rm -rf venv

README.md

@@ -168,6 +168,9 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/jolo1581"><img src="https://avatars1.githubusercontent.com/u/53423977?v=4" width="100px;" alt="Jan A."/><br /><sub><b>Jan A.</b></sub></a><br /><a href="https://github.com/solokeys/solo/commits?author=jolo1581" title="Code">💻</a> <a href="https://github.com/solokeys/solo/commits?author=jolo1581" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/ccinelli"><img src="https://avatars0.githubusercontent.com/u/38021940?v=4" width="100px;" alt="ccinelli"/><br /><sub><b>ccinelli</b></sub></a><br /><a href="#infra-ccinelli" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/solokeys/solo/commits?author=ccinelli" title="Tests">⚠️</a></td>
   </tr>
+  <tr>
+    <td align="center"><a href="https://www.nitrokey.com"><img src="https://avatars1.githubusercontent.com/u/9438831?v=4" width="100px;" alt="Nitrokey"/><br /><sub><b>Nitrokey</b></sub></a><br /><a href="https://github.com/solokeys/solo/commits?author=Nitrokey" title="Code">💻</a> <a href="https://github.com/solokeys/solo/commits?author=Nitrokey" title="Tests">⚠️</a> <a href="#ideas-Nitrokey" title="Ideas, Planning, & Feedback">🤔</a></td>
+  </tr>
 </table>
 
 <!-- ALL-CONTRIBUTORS-LIST:END -->
@@ -183,7 +186,7 @@ You may use Solo software under the terms of either the Apache 2.0 license or MI
 Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
 
 All hardware, unless otherwise noted, is dual licensed under CERN and CC-BY-SA.
-You may use Solo hardware under the terms of either the CERN 2.1 license or CC-BY-SA 4.0 license.
+You may use Solo hardware under the terms of either the CERN 1.2 license or CC-BY-SA 4.0 license.
 
 All documentation, unless otherwise noted, is licensed under CC-BY-SA.
 You may use Solo documentation under the terms of the CC-BY-SA 4.0 license
@@ -200,7 +203,7 @@ You can buy Solo, Solo Tap, and Solo for Hackers at [solokeys.com](https://solok
 <br/>
 
 [![License](https://img.shields.io/github/license/solokeys/solo.svg)](https://github.com/solokeys/solo/blob/master/LICENSE)
-[![All Contributors](https://img.shields.io/badge/all_contributors-21-orange.svg?style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-22-orange.svg?style=flat-square)](#contributors)
 [![Build Status](https://travis-ci.com/solokeys/solo.svg?branch=master)](https://travis-ci.com/solokeys/solo)
 [![Discourse Users](https://img.shields.io/discourse/https/discourse.solokeys.com/users.svg)](https://discourse.solokeys.com)
 [![Keybase Chat](https://img.shields.io/badge/chat-on%20keybase-brightgreen.svg)](https://keybase.io/team/solokeys.public)

docs/solo/porting.md

@@ -0,0 +1,60 @@
+# Usage and Porting
+
+Solo is designed to be used as a library or ported to other platforms easily.  Here is an example
+`main()` function.
+
+```c
+int main()
+{
+    uint8_t hidmsg[64];
+    uint32_t t1 = 0;
+
+    device_init();
+    memset(hidmsg,0,sizeof(hidmsg));
+
+    while(1)
+    {
+
+        if (usbhid_recv(hidmsg) > 0)
+        {
+            ctaphid_handle_packet(hidmsg);      // pass into libsolo!
+            memset(hidmsg, 0, sizeof(hidmsg));
+        }
+
+
+        ctaphid_check_timeouts();
+    }
+
+}
+
+```
+
+`ctaphid_handle_packet(hidmsg);` is the entrance into the HID layer of libsolo, and will buffer packets and pass them
+into FIDO2 or U2F layers.
+
+Everything in the library is cross-platform, but it needs some functions implemented that are usually
+platform specific.  For example, how should libsolo implement an atomic counter?  Where should it save state?
+For all of these platform specific functions, the library contains it's own `weak` definition, so the library will compile and run.
+LibSolo by default will not try to use an atomic
+counter or save data persistently -- that needs to be implemented externally.
+
+If you are using libsolo on another platform,
+you should take a look at these possibly platform specific functions.  They are listed in `fido2/device.h`.
+If you'd like to reimplement any of the functions, then simply implement the function and compile normally.
+GCC will replace libsolo's `weak` defined functions (everything in `fido2/device.h`) with your functions.  By doing this, you 
+are replacing the function that is used by libsolo.
+
+To get the library to compile
+and run, you only need to implement one function for libsolo: `usbhid_send(uint8_t * send)`, which
+is called by the library to send a 64 byte packet over a USB HID endpoint.  In essence, you are giving
+libsolo a function to write to USB.
+
+The rest of the definitions in `fido2/device.h` are not required to compile and run so you can
+immediately hit the ground running and iterative add what else you need.  You'll definitely want
+to continue implementing other functions in `fido2/device.h`.  For example, no data will be stored
+persistently until you define how it can be done!
+
+For examples, check out the build for STM32L4 and PC (check out `pc/device` and `targets/stm32l432/src/device.c`).
+
+If there's something that doesn't work for you -- send a pull request!  It's better if we can
+work together off of the same repo and not fork.

fido2/Makefile

@@ -0,0 +1,44 @@
+include version.mk
+
+ifndef APP_CONFIG
+APP_CONFIG=example_app.h
+endif
+
+INC = -I./ -I./extensions
+INC += -I../tinycbor/src 
+INC += -I../crypto/sha256 -I../crypto/micro-ecc -I../crypto/tiny-AES-c
+INC += -I../crypto/cifra/src -I../crypto/cifra/src/ext
+
+INT_CFLAGS = -DAPP_CONFIG=\"$(APP_CONFIG)\"
+INT_CFLAGS += $(INC)
+INT_CFLAGS += $(SOLO_VERSION_FLAGS)
+
+SRC = apdu.c util.c u2f.c test_power.c
+SRC += stubs.c log.c  ctaphid.c  ctap.c
+SRC += ctap_parse.c crypto.c
+SRC += device.c
+SRC += version.c
+SRC += data_migration.c
+SRC += extensions/extensions.c extensions/solo.c
+SRC += extensions/wallet.c
+
+# Crypto libs
+SRC += ../crypto/sha256/sha256.c ../crypto/micro-ecc/uECC.c ../crypto/tiny-AES-c/aes.c
+SRC += ../crypto/cifra/src/sha512.c ../crypto/cifra/src/blockwise.c
+
+OBJ = $(SRC:.c=.o)
+
+all: libsolo.a
+
+libsolo.a: $(OBJ)
+	$(AR) cqs $@ $^
+
+%.o: %.c
+	$(CC) $^ $(INT_CFLAGS) $(CFLAGS) -c -o $@
+
+../crypto/micro-ecc/uECC.o: ../crypto/micro-ecc/uECC.c
+	$(CC) $^ $(INT_CFLAGS) $(ECC_CFLAGS) -c -o $@
+
+clean:
+	rm -f $(OBJ) libsolo.a
+

fido2/crypto.c

@@ -5,29 +5,33 @@
 // http://opensource.org/licenses/MIT>, at your option. This file may not be
 // copied, modified, or distributed except according to those terms.
 /*
- *  Wrapper for crypto implementation on device
+ *  Wrapper for crypto implementation on device.
+ * 
+ *  Can be replaced with different crypto implementation by
+ *  defining EXTERNAL_SOLO_CRYPTO
  *
  * */
+#ifndef EXTERNAL_SOLO_CRYPTO
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-
-
 #include "util.h"
 #include "crypto.h"
 
-#ifdef USE_SOFTWARE_IMPLEMENTATION
-
 #include "sha256.h"
 #include "uECC.h"
 #include "aes.h"
 #include "ctap.h"
 #include "device.h"
-#include "log.h"
+// stuff for SHA512
+#include "sha2.h"
+#include "blockwise.h"
 #include APP_CONFIG
+#include "log.h"
+
 
-#ifdef USING_PC
 typedef enum
 {
     MBEDTLS_ECP_DP_NONE = 0,
@@ -44,53 +48,56 @@ typedef enum
     MBEDTLS_ECP_DP_SECP224K1,      /*!< 224-bits "Koblitz" curve */
     MBEDTLS_ECP_DP_SECP256K1,      /*!< 256-bits "Koblitz" curve */
 } mbedtls_ecp_group_id;
-#endif
-
-
-const uint8_t * attestation_cert_der;
-const uint16_t attestation_cert_der_size;
-const uint8_t attestation_key[];
-const uint16_t attestation_key_size;
-
 
 
 static SHA256_CTX sha256_ctx;
+static cf_sha512_context sha512_ctx;
 static const struct uECC_Curve_t * _es256_curve = NULL;
 static const uint8_t * _signing_key = NULL;
 static int _key_len = 0;
 
 // Secrets for testing only
 static uint8_t master_secret[64];
-
 static uint8_t transport_secret[32];
 
 
-
+void crypto_sha256_init(void)
-void crypto_sha256_init()
 {
     sha256_init(&sha256_ctx);
 }
 
-void crypto_reset_master_secret()
+void crypto_sha512_init(void)
 {
-    ctap_generate_rng(master_secret, 64);
+    cf_sha512_init(&sha512_ctx);
-    ctap_generate_rng(transport_secret, 32);
 }
 
 void crypto_load_master_secret(uint8_t * key)
 {
-    #if KEY_SPACE_BYTES < 96
+#if KEY_SPACE_BYTES < 96
-    #error "need more key bytes"
+#error "need more key bytes"
-    #endif
+#endif
     memmove(master_secret, key, 64);
     memmove(transport_secret, key+64, 32);
 }
 
+void crypto_reset_master_secret(void)
+{
+    memset(master_secret, 0, 64);
+    memset(transport_secret, 0, 32);
+    ctap_generate_rng(master_secret, 64);
+    ctap_generate_rng(transport_secret, 32);
+}
+
+
 void crypto_sha256_update(uint8_t * data, size_t len)
 {
     sha256_update(&sha256_ctx, data, len);
 }
 
+void crypto_sha512_update(const uint8_t * data, size_t len) {
+    cf_sha512_update(&sha512_ctx, data, len);
+}
+
 void crypto_sha256_update_secret()
 {
     sha256_update(&sha256_ctx, master_secret, 32);
@@ -101,26 +108,32 @@ void crypto_sha256_final(uint8_t * hash)
     sha256_final(&sha256_ctx, hash);
 }
 
+void crypto_sha512_final(uint8_t * hash)
+{
+    // NB: there is also cf_sha512_digest
+    cf_sha512_digest_final(&sha512_ctx, hash);
+}
+
 void crypto_sha256_hmac_init(uint8_t * key, uint32_t klen, uint8_t * hmac)
 {
     uint8_t buf[64];
-    int i;
+    unsigned int i;
     memset(buf, 0, sizeof(buf));
 
     if (key == CRYPTO_MASTER_KEY)
     {
         key = master_secret;
-        klen = sizeof(master_secret);
+        klen = sizeof(master_secret)/2;
     }
     else if (key == CRYPTO_TRANSPORT_KEY)
     {
         key = transport_secret;
         klen = 32;
     }
-    
+
     if(klen > 64)
     {
-        printf2(TAG_ERR,"Error, key size must be <= 64\n");
+        printf2(TAG_ERR, "Error, key size must be <= 64\n");
         exit(1);
     }
 
@@ -138,19 +151,24 @@ void crypto_sha256_hmac_init(uint8_t * key, uint32_t klen, uint8_t * hmac)
 void crypto_sha256_hmac_final(uint8_t * key, uint32_t klen, uint8_t * hmac)
 {
     uint8_t buf[64];
-    int i;
+    unsigned int i;
     crypto_sha256_final(hmac);
     memset(buf, 0, sizeof(buf));
     if (key == CRYPTO_MASTER_KEY)
     {
         key = master_secret;
-        klen = sizeof(master_secret);
+        klen = sizeof(master_secret)/2;
+    }
+    else if (key == CRYPTO_TRANSPORT_KEY2)
+    {
+        key = transport_secret;
+        klen = 32;
     }
 
 
     if(klen > 64)
     {
-        printf2(TAG_ERR,"Error, key size must be <= 64\n");
+        printf2(TAG_ERR, "Error, key size must be <= 64\n");
         exit(1);
     }
     memmove(buf, key, klen);
@@ -167,16 +185,16 @@ void crypto_sha256_hmac_final(uint8_t * key, uint32_t klen, uint8_t * hmac)
 }
 
 
-void crypto_ecc256_init()
+void crypto_ecc256_init(void)
 {
     uECC_set_rng((uECC_RNG_Function)ctap_generate_rng);
     _es256_curve = uECC_secp256r1();
 }
 
 
-void crypto_ecc256_load_attestation_key()
+void crypto_ecc256_load_attestation_key(void)
 {
-    _signing_key = attestation_key;
+    _signing_key = device_get_attestation_key();
     _key_len = 32;
 }
 
@@ -184,7 +202,7 @@ void crypto_ecc256_sign(uint8_t * data, int len, uint8_t * sig)
 {
     if ( uECC_sign(_signing_key, data, len, sig, _es256_curve) == 0)
     {
-        printf2(TAG_ERR,"error, uECC failed\n");
+        printf2(TAG_ERR, "error, uECC failed\n");
         exit(1);
     }
 }
@@ -221,19 +239,19 @@ void crypto_ecdsa_sign(uint8_t * data, int len, uint8_t * sig, int MBEDTLS_ECP_I
             if (_key_len != 32)  goto fail;
             break;
         default:
-            printf2(TAG_ERR,"error, invalid ECDSA alg specifier\n");
+            printf2(TAG_ERR, "error, invalid ECDSA alg specifier\n");
             exit(1);
     }
 
     if ( uECC_sign(_signing_key, data, len, sig, curve) == 0)
     {
-        printf2(TAG_ERR,"error, uECC failed\n");
+        printf2(TAG_ERR, "error, uECC failed\n");
         exit(1);
     }
     return;
 
 fail:
-    printf2(TAG_ERR,"error, invalid key length\n");
+    printf2(TAG_ERR, "error, invalid key length\n");
     exit(1);
 
 }
@@ -243,8 +261,11 @@ void generate_private_key(uint8_t * data, int len, uint8_t * data2, int len2, ui
     crypto_sha256_hmac_init(CRYPTO_MASTER_KEY, 0, privkey);
     crypto_sha256_update(data, len);
     crypto_sha256_update(data2, len2);
-    crypto_sha256_update(master_secret, 32);
+    crypto_sha256_update(master_secret, 32);    // TODO AES
     crypto_sha256_hmac_final(CRYPTO_MASTER_KEY, 0, privkey);
+
+    crypto_aes256_init(master_secret + 32, NULL);
+    crypto_aes256_encrypt(privkey, 32);
 }
 
 
@@ -261,12 +282,12 @@ void crypto_ecc256_derive_public_key(uint8_t * data, int len, uint8_t * x, uint8
     memmove(x,pubkey,32);
     memmove(y,pubkey+32,32);
 }
-
 void crypto_ecc256_compute_public_key(uint8_t * privkey, uint8_t * pubkey)
 {
     uECC_compute_public_key(privkey, pubkey, _es256_curve);
 }
 
+
 void crypto_load_external_key(uint8_t * key, int len)
 {
     _signing_key = key;
@@ -278,7 +299,7 @@ void crypto_ecc256_make_key_pair(uint8_t * pubkey, uint8_t * privkey)
 {
     if (uECC_make_key(pubkey, privkey, _es256_curve) != 1)
     {
-        printf2(TAG_ERR,"Error, uECC_make_key failed\n");
+        printf2(TAG_ERR, "Error, uECC_make_key failed\n");
         exit(1);
     }
 }
@@ -287,7 +308,7 @@ void crypto_ecc256_shared_secret(const uint8_t * pubkey, const uint8_t * privkey
 {
     if (uECC_shared_secret(pubkey, privkey, shared_secret, _es256_curve) != 1)
     {
-        printf2(TAG_ERR,"Error, uECC_shared_secret failed\n");
+        printf2(TAG_ERR, "Error, uECC_shared_secret failed\n");
         exit(1);
     }
 
@@ -338,44 +359,4 @@ void crypto_aes256_encrypt(uint8_t * buf, int length)
 }
 
 
-const uint8_t _attestation_cert_der[] =
-"\x30\x82\x01\xfb\x30\x82\x01\xa1\xa0\x03\x02\x01\x02\x02\x01\x00\x30\x0a\x06\x08"
-"\x2a\x86\x48\xce\x3d\x04\x03\x02\x30\x2c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13"
-"\x02\x55\x53\x31\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x10\x30\x0e"
-"\x06\x03\x55\x04\x0a\x0c\x07\x54\x45\x53\x54\x20\x43\x41\x30\x20\x17\x0d\x31\x38"
-"\x30\x35\x31\x30\x30\x33\x30\x36\x32\x30\x5a\x18\x0f\x32\x30\x36\x38\x30\x34\x32"
-"\x37\x30\x33\x30\x36\x32\x30\x5a\x30\x7c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13"
-"\x02\x55\x53\x31\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x0f\x30\x0d"
-"\x06\x03\x55\x04\x07\x0c\x06\x4c\x61\x75\x72\x65\x6c\x31\x15\x30\x13\x06\x03\x55"
-"\x04\x0a\x0c\x0c\x54\x45\x53\x54\x20\x43\x4f\x4d\x50\x41\x4e\x59\x31\x22\x30\x20"
-"\x06\x03\x55\x04\x0b\x0c\x19\x41\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x6f\x72"
-"\x20\x41\x74\x74\x65\x73\x74\x61\x74\x69\x6f\x6e\x31\x14\x30\x12\x06\x03\x55\x04"
-"\x03\x0c\x0b\x63\x6f\x6e\x6f\x72\x70\x70\x2e\x63\x6f\x6d\x30\x59\x30\x13\x06\x07"
-"\x2a\x86\x48\xce\x3d\x02\x01\x06\x08\x2a\x86\x48\xce\x3d\x03\x01\x07\x03\x42\x00"
-"\x04\x45\xa9\x02\xc1\x2e\x9c\x0a\x33\xfa\x3e\x84\x50\x4a\xb8\x02\xdc\x4d\xb9\xaf"
-"\x15\xb1\xb6\x3a\xea\x8d\x3f\x03\x03\x55\x65\x7d\x70\x3f\xb4\x02\xa4\x97\xf4\x83"
-"\xb8\xa6\xf9\x3c\xd0\x18\xad\x92\x0c\xb7\x8a\x5a\x3e\x14\x48\x92\xef\x08\xf8\xca"
-"\xea\xfb\x32\xab\x20\xa3\x62\x30\x60\x30\x46\x06\x03\x55\x1d\x23\x04\x3f\x30\x3d"
-"\xa1\x30\xa4\x2e\x30\x2c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31"
-"\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x10\x30\x0e\x06\x03\x55\x04"
-"\x0a\x0c\x07\x54\x45\x53\x54\x20\x43\x41\x82\x09\x00\xf7\xc9\xec\x89\xf2\x63\x94"
-"\xd9\x30\x09\x06\x03\x55\x1d\x13\x04\x02\x30\x00\x30\x0b\x06\x03\x55\x1d\x0f\x04"
-"\x04\x03\x02\x04\xf0\x30\x0a\x06\x08\x2a\x86\x48\xce\x3d\x04\x03\x02\x03\x48\x00"
-"\x30\x45\x02\x20\x18\x38\xb0\x45\x03\x69\xaa\xa7\xb7\x38\x62\x01\xaf\x24\x97\x5e"
-"\x7e\x74\x64\x1b\xa3\x7b\xf7\xe6\xd3\xaf\x79\x28\xdb\xdc\xa5\x88\x02\x21\x00\xcd"
-"\x06\xf1\xe3\xab\x16\x21\x8e\xd8\xc0\x14\xaf\x09\x4f\x5b\x73\xef\x5e\x9e\x4b\xe7"
-"\x35\xeb\xdd\x9b\x6d\x8f\x7d\xf3\xc4\x3a\xd7";
-const uint8_t * attestation_cert_der = (const uint8_t *)_attestation_cert_der;
-
-uint16_t attestation_cert_der_get_size(){
-    return sizeof(_attestation_cert_der)-1;
-}
-
-
-const uint8_t attestation_key[] = "\xcd\x67\xaa\x31\x0d\x09\x1e\xd1\x6e\x7e\x98\x92\xaa\x07\x0e\x19\x94\xfc\xd7\x14\xae\x7c\x40\x8f\xb9\x46\xb7\x2e\x5f\xe7\x5d\x30";
-const uint16_t attestation_key_size = sizeof(attestation_key)-1;
-
-
-#else
-#error "No crypto implementation defined"
 #endif

fido2/crypto.h

@@ -9,8 +9,6 @@
 
 #include <stddef.h>
 
-#define USE_SOFTWARE_IMPLEMENTATION
-
 void crypto_sha256_init();
 void crypto_sha256_update(uint8_t * data, size_t len);
 void crypto_sha256_update_secret();
@@ -23,7 +21,6 @@ void crypto_sha512_init();
 void crypto_sha512_update(const uint8_t * data, size_t len);
 void crypto_sha512_final(uint8_t * hash);
 
-
 void crypto_ecc256_init();
 void crypto_ecc256_derive_public_key(uint8_t * data, int len, uint8_t * x, uint8_t * y);
 void crypto_ecc256_compute_public_key(uint8_t * privkey, uint8_t * pubkey);
@@ -54,7 +51,4 @@ void crypto_reset_master_secret();
 void crypto_load_master_secret(uint8_t * key);
 
 
-extern const uint8_t * attestation_cert_der;
-uint16_t attestation_cert_der_get_size();
-
 #endif

fido2/ctap.c

@@ -69,6 +69,8 @@ uint8_t ctap_get_info(CborEncoder * encoder)
     CborEncoder map;
     CborEncoder options;
     CborEncoder pins;
+    uint8_t aaguid[16];
+    device_read_aaguid(aaguid);
 
     ret = cbor_encoder_create_map(encoder, &map, 6);
     check_ret(ret);
@@ -105,7 +107,7 @@ uint8_t ctap_get_info(CborEncoder * encoder)
         ret = cbor_encode_uint(&map, RESP_aaguid);
         check_ret(ret);
         {
-            ret = cbor_encode_byte_string(&map, CTAP_AAGUID, 16);
+            ret = cbor_encode_byte_string(&map, aaguid, 16);
             check_ret(ret);
         }
 
@@ -282,13 +284,9 @@ void make_auth_tag(uint8_t * rpIdHash, uint8_t * nonce, uint32_t count, uint8_t
     memmove(tag, hashbuf, CREDENTIAL_TAG_SIZE);
 }
 
-void ctap_flush_state(int backup)
+void ctap_flush_state()
 {
-    authenticator_write_state(&STATE, 0);
+    authenticator_write_state(&STATE);
-    if (backup)
-    {
-        authenticator_write_state(&STATE, 1);
-    }
 }
 
 static uint32_t auth_data_update_count(CTAP_authDataHeader * authData)
@@ -312,7 +310,7 @@ static uint32_t auth_data_update_count(CTAP_authDataHeader * authData)
 static void ctap_increment_rk_store()
 {
     STATE.rk_stored++;
-    ctap_flush_state(1);
+    ctap_flush_state();
 }
 
 static int is_matching_rk(CTAP_residentKey * rk, CTAP_residentKey * rk2)
@@ -509,7 +507,7 @@ static int ctap_make_auth_data(struct rpId * rp, CborEncoder * map, uint8_t * au
 
         cbor_encoder_init(&cose_key, cose_key_buf, *len - sizeof(CTAP_authData), 0);
 
-        memmove(authData->attest.aaguid, CTAP_AAGUID, 16);
+        device_read_aaguid(authData->attest.aaguid);
         authData->attest.credLenL =  sizeof(CredentialId) & 0x00FF;
         authData->attest.credLenH = (sizeof(CredentialId) & 0xFF00) >> 8;
 
@@ -634,11 +632,17 @@ int ctap_calculate_signature(uint8_t * data, int datalen, uint8_t * clientDataHa
 uint8_t ctap_add_attest_statement(CborEncoder * map, uint8_t * sigder, int len)
 {
     int ret;
-
+    uint8_t cert[1024];
+    uint16_t cert_size = device_attestation_cert_der_get_size();
+    if (cert_size > sizeof(cert)){
+        printf2(TAG_ERR,"Certificate is too large for CTAP2 buffer\r\n");
+        return CTAP2_ERR_PROCESSING;
+    }
+    device_attestation_read_cert_der(cert);
+    
     CborEncoder stmtmap;
     CborEncoder x5carr;
 
-
     ret = cbor_encode_int(map,RESP_attStmt);
     check_ret(ret);
     ret = cbor_encoder_create_map(map, &stmtmap, 3);
@@ -661,7 +665,7 @@ uint8_t ctap_add_attest_statement(CborEncoder * map, uint8_t * sigder, int len)
         ret = cbor_encoder_create_array(&stmtmap, &x5carr, 1);
         check_ret(ret);
         {
-            ret = cbor_encode_byte_string(&x5carr, attestation_cert_der, attestation_cert_der_get_size());
+            ret = cbor_encode_byte_string(&x5carr, cert, device_attestation_cert_der_get_size());
             check_ret(ret);
             ret = cbor_encoder_close_container(&stmtmap, &x5carr);
             check_ret(ret);
@@ -1770,8 +1774,7 @@ static void ctap_state_init()
 */
 void ctap_load_external_keys(uint8_t * keybytes){
     memmove(STATE.key_space, keybytes, KEY_SPACE_BYTES);
-    authenticator_write_state(&STATE, 0);
+    authenticator_write_state(&STATE);
-    authenticator_write_state(&STATE, 1);
     crypto_load_master_secret(STATE.key_space);
 }
 
@@ -1785,30 +1788,18 @@ void ctap_init()
             );
     crypto_ecc256_init();
 
-    authenticator_read_state(&STATE);
+    int is_init = authenticator_read_state(&STATE);
 
     device_set_status(CTAPHID_STATUS_IDLE);
 
-    if (STATE.is_initialized == INITIALIZED_MARKER)
+    if (is_init)
     {
         printf1(TAG_STOR,"Auth state is initialized\n");
     }
     else
     {
-        printf1(TAG_STOR,"Auth state is NOT initialized.  Initializing..\n");
+        ctap_state_init();
-        if (authenticator_is_backup_initialized())
+        authenticator_write_state(&STATE);
-        {
-            printf1(TAG_ERR,"Warning: memory corruption detected.  restoring from backup..\n");
-            authenticator_read_backup_state(&STATE);
-            authenticator_write_state(&STATE, 0);
-        }
-        else
-        {
-            ctap_state_init();
-            authenticator_write_state(&STATE, 0);
-            authenticator_write_state(&STATE, 1);
-
-        }
     }
 
     do_migration_if_required(&STATE);
@@ -1875,8 +1866,7 @@ void ctap_update_pin(uint8_t * pin, int len)
 
     STATE.is_pin_set = 1;
 
-    authenticator_write_state(&STATE, 1);
+    authenticator_write_state(&STATE);
-    authenticator_write_state(&STATE, 0);
 
     printf1(TAG_CTAP, "New pin set: %s [%d]\n", pin, len);
     dump_hex1(TAG_ERR, STATE.PIN_CODE_HASH, sizeof(STATE.PIN_CODE_HASH));
@@ -1891,7 +1881,7 @@ uint8_t ctap_decrement_pin_attempts()
     if (! ctap_device_locked())
     {
         STATE.remaining_tries--;
-        ctap_flush_state(0);
+        ctap_flush_state();
         printf1(TAG_CP, "ATTEMPTS left: %d\n", STATE.remaining_tries);
 
         if (ctap_device_locked())
@@ -1926,7 +1916,7 @@ void ctap_reset_pin_attempts()
 {
     STATE.remaining_tries = PIN_LOCKOUT_ATTEMPTS;
     PIN_BOOT_ATTEMPTS_LEFT = PIN_BOOT_ATTEMPTS;
-    ctap_flush_state(0);
+    ctap_flush_state();
 }
 
 void ctap_reset_state()
@@ -2000,7 +1990,7 @@ int8_t ctap_store_key(uint8_t index, uint8_t * key, uint16_t len)
 
     memmove(STATE.key_space + offset, key, len);
 
-    ctap_flush_state(1);
+    ctap_flush_state();
 
     return 0;
 }
@@ -2042,8 +2032,7 @@ void ctap_reset()
 {
     ctap_state_init();
 
-    authenticator_write_state(&STATE, 0);
+    authenticator_write_state(&STATE);
-    authenticator_write_state(&STATE, 1);
 
     if (ctap_generate_rng(PIN_TOKEN, PIN_TOKEN_SIZE) != 1)
     {
@@ -2063,6 +2052,5 @@ void lock_device_permanently() {
 
     printf1(TAG_CP, "Device locked!\n");
 
-    authenticator_write_state(&STATE, 0);
+    authenticator_write_state(&STATE);
-    authenticator_write_state(&STATE, 1);
 }

fido2/ctap.h

@@ -19,9 +19,6 @@
 #define CTAP_VENDOR_FIRST           0x40
 #define CTAP_VENDOR_LAST            0xBF
 
-// AAGUID For Solo
-#define CTAP_AAGUID                 ((uint8_t*)"\x88\x76\x63\x1b\xd4\xa0\x42\x7f\x57\x73\x0e\xc7\x1c\x9e\x02\x79")
-
 #define MC_clientDataHash         0x01
 #define MC_rp                     0x02
 #define MC_user                   0x03

fido2/ctaphid.c

@@ -275,7 +275,7 @@ static void ctaphid_write(CTAPHID_WRITE_BUFFER * wb, void * _data, int len)
         if (wb->offset > 0)
         {
             memset(wb->buf + wb->offset, 0, HID_MESSAGE_SIZE - wb->offset);
-            ctaphid_write_block(wb->buf);
+            usbhid_send(wb->buf);
         }
         return;
     }
@@ -304,7 +304,7 @@ static void ctaphid_write(CTAPHID_WRITE_BUFFER * wb, void * _data, int len)
         wb->bytes_written += 1;
         if (wb->offset == HID_MESSAGE_SIZE)
         {
-            ctaphid_write_block(wb->buf);
+            usbhid_send(wb->buf);
             wb->offset = 0;
         }
     }
@@ -635,6 +635,9 @@ uint8_t ctaphid_handle_packet(uint8_t * pkt_raw)
             status = ctap_request(ctap_buffer, len, &ctap_resp);
 
             wb.bcnt = (ctap_resp.length+1);
+            wb.cid = cid;
+            wb.cmd = cmd;
+
 
 
             timestamp();
@@ -665,6 +668,9 @@ uint8_t ctaphid_handle_packet(uint8_t * pkt_raw)
             u2f_request((struct u2f_request_apdu*)ctap_buffer, &ctap_resp);
 
             wb.bcnt = (ctap_resp.length);
+            wb.cid = cid;
+            wb.cmd = cmd;
+
 
             ctaphid_write(&wb, ctap_resp.data, ctap_resp.length);
             ctaphid_write(&wb, NULL, 0);

fido2/ctaphid.h

@@ -59,6 +59,8 @@
 
 #define CTAP_CAPABILITIES           (CAPABILITY_WINK | CAPABILITY_CBOR)
 
+#define HID_MESSAGE_SIZE        64
+
 typedef struct
 {
     uint32_t cid;

fido2/data_migration.c

@@ -56,8 +56,7 @@ bool migrate_from_FF_to_01(AuthenticatorState_0xFF* state_prev_0xff, Authenticat
 
 void save_migrated_state(AuthenticatorState *state_tmp_ptr) {
     memmove(&STATE, state_tmp_ptr, sizeof(AuthenticatorState));
-    authenticator_write_state(state_tmp_ptr, 0);
+    authenticator_write_state(state_tmp_ptr);
-    authenticator_write_state(state_tmp_ptr, 1);
 }
 
 void do_migration_if_required(AuthenticatorState* state_current){

fido2/device.c

@@ -0,0 +1,209 @@
+// Copyright 2019 SoloKeys Developers
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+/** device.c
+ * 
+ * This contains (weak) implementations
+ * to get FIDO2 working initially on a device.  They probably
+ * aren't what you want to keep, but are designed to be replaced
+ * with some other platform specific implementation.
+ * 
+ * For real examples, see the STM32L4 implementation and the PC implementation of device.c.
+ * 
+*/
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "ctaphid.h"
+#include "log.h"
+#include APP_CONFIG
+
+#define RK_NUM  50
+
+struct ResidentKeyStore {
+    CTAP_residentKey rks[RK_NUM];
+} RK_STORE;
+
+
+static bool _up_disabled = false;
+
+static uint8_t _attestation_cert_der[] =
+"\x30\x82\x01\xfb\x30\x82\x01\xa1\xa0\x03\x02\x01\x02\x02\x01\x00\x30\x0a\x06\x08"
+"\x2a\x86\x48\xce\x3d\x04\x03\x02\x30\x2c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13"
+"\x02\x55\x53\x31\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x10\x30\x0e"
+"\x06\x03\x55\x04\x0a\x0c\x07\x54\x45\x53\x54\x20\x43\x41\x30\x20\x17\x0d\x31\x38"
+"\x30\x35\x31\x30\x30\x33\x30\x36\x32\x30\x5a\x18\x0f\x32\x30\x36\x38\x30\x34\x32"
+"\x37\x30\x33\x30\x36\x32\x30\x5a\x30\x7c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13"
+"\x02\x55\x53\x31\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x0f\x30\x0d"
+"\x06\x03\x55\x04\x07\x0c\x06\x4c\x61\x75\x72\x65\x6c\x31\x15\x30\x13\x06\x03\x55"
+"\x04\x0a\x0c\x0c\x54\x45\x53\x54\x20\x43\x4f\x4d\x50\x41\x4e\x59\x31\x22\x30\x20"
+"\x06\x03\x55\x04\x0b\x0c\x19\x41\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x6f\x72"
+"\x20\x41\x74\x74\x65\x73\x74\x61\x74\x69\x6f\x6e\x31\x14\x30\x12\x06\x03\x55\x04"
+"\x03\x0c\x0b\x63\x6f\x6e\x6f\x72\x70\x70\x2e\x63\x6f\x6d\x30\x59\x30\x13\x06\x07"
+"\x2a\x86\x48\xce\x3d\x02\x01\x06\x08\x2a\x86\x48\xce\x3d\x03\x01\x07\x03\x42\x00"
+"\x04\x45\xa9\x02\xc1\x2e\x9c\x0a\x33\xfa\x3e\x84\x50\x4a\xb8\x02\xdc\x4d\xb9\xaf"
+"\x15\xb1\xb6\x3a\xea\x8d\x3f\x03\x03\x55\x65\x7d\x70\x3f\xb4\x02\xa4\x97\xf4\x83"
+"\xb8\xa6\xf9\x3c\xd0\x18\xad\x92\x0c\xb7\x8a\x5a\x3e\x14\x48\x92\xef\x08\xf8\xca"
+"\xea\xfb\x32\xab\x20\xa3\x62\x30\x60\x30\x46\x06\x03\x55\x1d\x23\x04\x3f\x30\x3d"
+"\xa1\x30\xa4\x2e\x30\x2c\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31"
+"\x0b\x30\x09\x06\x03\x55\x04\x08\x0c\x02\x4d\x44\x31\x10\x30\x0e\x06\x03\x55\x04"
+"\x0a\x0c\x07\x54\x45\x53\x54\x20\x43\x41\x82\x09\x00\xf7\xc9\xec\x89\xf2\x63\x94"
+"\xd9\x30\x09\x06\x03\x55\x1d\x13\x04\x02\x30\x00\x30\x0b\x06\x03\x55\x1d\x0f\x04"
+"\x04\x03\x02\x04\xf0\x30\x0a\x06\x08\x2a\x86\x48\xce\x3d\x04\x03\x02\x03\x48\x00"
+"\x30\x45\x02\x20\x18\x38\xb0\x45\x03\x69\xaa\xa7\xb7\x38\x62\x01\xaf\x24\x97\x5e"
+"\x7e\x74\x64\x1b\xa3\x7b\xf7\xe6\xd3\xaf\x79\x28\xdb\xdc\xa5\x88\x02\x21\x00\xcd"
+"\x06\xf1\xe3\xab\x16\x21\x8e\xd8\xc0\x14\xaf\x09\x4f\x5b\x73\xef\x5e\x9e\x4b\xe7"
+"\x35\xeb\xdd\x9b\x6d\x8f\x7d\xf3\xc4\x3a\xd7";
+
+
+__attribute__((weak)) void device_attestation_read_cert_der(uint8_t * dst){
+    memmove(dst, _attestation_cert_der, device_attestation_cert_der_get_size());
+}
+
+__attribute__((weak)) uint8_t * device_get_attestation_key(){
+    static uint8_t attestation_key[] = 
+        "\xcd\x67\xaa\x31\x0d\x09\x1e\xd1\x6e\x7e\x98\x92\xaa"
+        "\x07\x0e\x19\x94\xfc\xd7\x14\xae\x7c\x40\x8f\xb9\x46"
+        "\xb7\x2e\x5f\xe7\x5d\x30";
+    return attestation_key;
+}
+
+__attribute__((weak)) uint16_t device_attestation_cert_der_get_size(){
+    return sizeof(_attestation_cert_der)-1;
+}
+
+__attribute__((weak)) void device_reboot() 
+{
+    printf1(TAG_RED, "REBOOT command recieved!\r\n");
+    exit(100);
+}
+
+__attribute__((weak)) void device_set_status(uint32_t status)
+{
+    static uint32_t __device_status = 0;
+    if (status != CTAPHID_STATUS_IDLE && __device_status != status)
+    {
+        ctaphid_update_status(status);
+    }
+    __device_status = status;
+}
+
+
+__attribute__((weak)) void usbhid_close(){/**/}
+
+
+__attribute__((weak)) void device_init(int argc, char *argv[]){/**/}
+
+__attribute__((weak)) void device_disable_up(bool disable)
+{
+    _up_disabled = disable;
+}
+
+__attribute__((weak)) int ctap_user_presence_test(uint32_t d)
+{
+    if (_up_disabled)
+    {
+        return 2;
+    }
+    return 1;
+}
+
+__attribute__((weak)) int ctap_user_verification(uint8_t arg)
+{
+    return 1;
+}
+
+__attribute__((weak)) uint32_t ctap_atomic_count(uint32_t amount)
+{
+    static uint32_t counter1 = 25;
+    counter1 += (amount + 1);
+    return counter1;
+}
+
+
+__attribute__((weak)) int ctap_generate_rng(uint8_t * dst, size_t num)
+{
+    int i;
+    printf1(TAG_ERR, "Insecure RNG being used.\r\n");
+    for (i = 0; i < num; i++){
+        dst[i] = (uint8_t)rand();
+    }
+}
+
+__attribute__((weak)) int device_is_nfc()
+{
+    return 0;
+}
+
+__attribute__((weak)) void device_wink()
+{
+    printf1(TAG_GREEN,"*WINK*\n");
+}
+
+__attribute__((weak)) void device_set_clock_rate(DEVICE_CLOCK_RATE param){/**/}
+
+static  AuthenticatorState _tmp_state = {0};
+__attribute__((weak)) int authenticator_read_state(AuthenticatorState * s){
+    if (_tmp_state.is_initialized != INITIALIZED_MARKER){
+        return 0;
+    }
+    else {
+        memmove(s, &_tmp_state, sizeof(AuthenticatorState));
+        return 1;
+    }
+}
+
+__attribute__((weak)) void authenticator_write_state(AuthenticatorState * s){
+    memmove(&_tmp_state, s, sizeof(AuthenticatorState));
+}
+
+__attribute__((weak)) void ctap_reset_rk()
+{
+    memset(&RK_STORE,0xff,sizeof(RK_STORE));
+}
+
+__attribute__((weak)) uint32_t ctap_rk_size()
+{
+    return RK_NUM;
+}
+
+
+__attribute__((weak)) void ctap_store_rk(int index, CTAP_residentKey * rk)
+{
+    if (index < RK_NUM)
+    {
+        memmove(RK_STORE.rks + index, rk, sizeof(CTAP_residentKey));
+    }
+    else
+    {
+        printf1(TAG_ERR,"Out of bounds for store_rk\r\n");
+    }
+
+}
+
+__attribute__((weak)) void ctap_load_rk(int index, CTAP_residentKey * rk)
+{
+    memmove(rk, RK_STORE.rks + index, sizeof(CTAP_residentKey));
+}
+
+__attribute__((weak)) void ctap_overwrite_rk(int index, CTAP_residentKey * rk)
+{
+    if (index < RK_NUM)
+    {
+        memmove(RK_STORE.rks + index, rk, sizeof(CTAP_residentKey));
+    }
+    else
+    {
+        printf1(TAG_ERR,"Out of bounds for store_rk\r\n");
+    }
+}
+
+__attribute__((weak)) void device_read_aaguid(uint8_t * dst){
+    uint8_t * aaguid = (uint8_t *)"\x00\x76\x63\x1b\xd4\xa0\x42\x7f\x57\x73\x0e\xc7\x1c\x9e\x02\x79";
+    memmove(dst, aaguid, 16);
+}
+

fido2/device.h

@@ -9,82 +9,159 @@
 
 #include "storage.h"
 
-void device_init(int argc, char *argv[]);
+/** Return a millisecond timestamp.  Does not need to be synchronized to anything.
-
+ *  *Optional* to compile, but will not calculate delays correctly without a correct implementation.
+*/
 uint32_t millis();
 
-void delay(uint32_t ms);
-
-// HID message size in bytes
-#define HID_MESSAGE_SIZE        64
-
-void usbhid_init();
-
-int usbhid_recv(uint8_t * msg);
 
+/** Called by HIDUSB layer to write bytes to the USB HID interface endpoint.
+ *  Will write 64 bytes at a time.
+ *  
+ *  @param msg Pointer to a 64 byte buffer containing a payload to be sent via USB HID. 
+ * 
+ *  **Required** to compile and work for FIDO application.
+*/
 void usbhid_send(uint8_t * msg);
 
-void usbhid_close();
-
-void main_loop_delay();
-
-void heartbeat();
 
+/** Reboot / power reset the device.
+ *  **Optional** this is not used for FIDO2, and simply won't do anything if not implemented.
+*/
 void device_reboot();
 
-void authenticator_read_state(AuthenticatorState * );
+/** Read AuthenticatorState from nonvolatile memory.
+ *  @param s pointer to AuthenticatorState buffer to be overwritten with contents from NV memory.
+ *  @return 0 - state stored is NOT initialized.
+ *          1 - state stored is initialized.
+ * 
+ *  *Optional* this is required to make persistant updates to FIDO2 State (PIN and device master secret).
+ *             Without it, changes simply won't be persistant.
+*/
+int authenticator_read_state(AuthenticatorState * s);
 
-void authenticator_read_backup_state(AuthenticatorState * );
+/** Store changes in the authenticator state to nonvolatile memory.
-
+ *  @param s pointer to valid Authenticator state to write to NV memory.
-// Return 1 yes backup is init'd, else 0
+ * 
-//void authenticator_initialize()
+ *  *Optional* this is required to make persistant updates to FIDO2 State (PIN and device master secret).
-int authenticator_is_backup_initialized();
+ *             Without it, changes simply won't be persistant.
-
+ */
-void authenticator_write_state(AuthenticatorState *, int backup);
+void authenticator_write_state(AuthenticatorState * s);
-
-// Called each main loop.  Doesn't need to do anything.
-void device_manage();
 
 // sets status that's uses for sending status updates ~100ms.
 // A timer should be set up to call `ctaphid_update_status`
+
+/** Updates status of the status of the FIDO2 layer application, which
+ *  can be used for polling updates in the USBHID layer.
+ * 
+ * @param status is one of the following, which can be used appropriately by USB HID layer.
+        #define CTAPHID_STATUS_IDLE         0
+        #define CTAPHID_STATUS_PROCESSING   1
+        #define CTAPHID_STATUS_UPNEEDED     2
+ * 
+ * *Optional* to compile and run, but will be required to be used for proper FIDO2 operation with some platforms.
+*/
 void device_set_status(uint32_t status);
 
-// Returns if button is currently pressed
+/** Returns true if button is currently pressed.  Debouncing does not need to be handled.  Should not block.
+ * @return 1 if button is currently pressed.  
+ * 
+ * *Optional* to compile and run, but just returns one by default.
+*/
 int device_is_button_pressed();
 
-// Test for user presence
+// 
 // Return 2 for disabled, 1 for user is present, 0 user not present, -1 if cancel is requested.
+/** Test for user presence.
+ *  Perform test that user is present.  Returns status on user presence.  This is used by FIDO and U2F layer
+ *  to check if an operation should continue, or if the UP flag should be set.
+ * 
+ * @param delay number of milliseconds to delay waiting for user before timeout.
+ * 
+ * @return 2 - User presence is disabled.  Operation should continue, but UP flag not set.
+ *         1 - User presence confirmed.  Operation should continue, and UP flag is set.
+ *         0 - User presence is not confirmed.  Operation should be denied.
+ *        -1 - Operation was canceled.  Do not continue, reset transaction state.
+ * 
+ * *Optional*, the default implementation will return 1, unless a FIDO2 operation calls for no UP, where this will then return 2.
+*/
 int ctap_user_presence_test(uint32_t delay);
 
-// Generate @num bytes of random numbers to @dest
+/** Disable the next user presence test.  This is called by FIDO2 layer when a transaction
-// return 1 if success, error otherwise
+ *  requests UP to be disabled.  The next call to ctap_user_presence_test should return 2,
+ *  and then UP should be enabled again.
+ * 
+ * @param request_active indicate to activate (true) or disable (false) UP.
+ * 
+ * *Optional*, the default implementation will provide expected behaviour with the default ctap_user_presence_test(...).
+*/
+void device_disable_up(bool request_active);
+
+/** Generate random numbers.  Random numbers should be good enough quality for 
+ *  cryptographic use.
+ * 
+ *  @param dst the buffer to write into.
+ *  @param num the number of bytes to generate and write to dst.
+ * 
+ *  @return 1 if successful, or else the RNG failed.
+ * 
+ * *Optional*, if not implemented, the random numbers will be from rand() and an error will be logged.
+*/
 int ctap_generate_rng(uint8_t * dst, size_t num);
 
-// Increment atomic counter and return it.
+/** Increment an atomic (non-volatile) counter and return the value.
-// @param amount the amount to increase the counter by.
+ * 
+ * @param amount a non-zero amount to increment the counter by.
+ * 
+ * *Optional*, if not implemented, the counter will not be persistant.
+*/
 uint32_t ctap_atomic_count(uint32_t amount);
 
-// Verify the user
+/** Delete all resident keys.
-// return 1 if user is verified, 0 if not
+ * 
-int ctap_user_verification(uint8_t arg);
+ * *Optional*, if not implemented, operates on non-persistant RK's.
-
+*/
-// Must be implemented by application
-// data is HID_MESSAGE_SIZE long in bytes
-void ctaphid_write_block(uint8_t * data);
-
-
-// Resident key
 void ctap_reset_rk();
+
+/** Return the maximum amount of resident keys that can be stored.
+ * @return max number of resident keys that can be stored, including already stored RK's.
+ * 
+ * *Optional*, if not implemented, returns 50.
+*/
 uint32_t ctap_rk_size();
+
+/** Store a resident key into an index between [ 0, ctap_rk_size() ).
+ *  Storage should be in non-volatile memory.
+ * 
+ * @param index between RK index range.
+ * @param rk pointer to valid rk structure that should be written to NV memory.
+ * 
+ * *Optional*, if not implemented, operates on non-persistant RK's.
+*/
 void ctap_store_rk(int index,CTAP_residentKey * rk);
+
+/** Read a resident key from an index into memory
+ * @param index to read resident key from.
+ * @param rk pointer to resident key structure to write into with RK.
+ * 
+ * *Optional*, if not implemented, operates on non-persistant RK's.
+*/
 void ctap_load_rk(int index,CTAP_residentKey * rk);
+
+/** Overwrite the RK located in index with a new RK.
+ * @param index to write resident key to.
+ * @param rk pointer to valid rk structure that should be written to NV memory, and replace existing RK there.
+ * 
+ * *Optional*, if not implemented, operates on non-persistant RK's.
+*/
 void ctap_overwrite_rk(int index,CTAP_residentKey * rk);
 
-// For Solo hacker
-void boot_solo_bootloader();
-void boot_st_bootloader();
 
-// HID wink command
+/** Called by HID layer to indicate that a wink behavior should be performed.
+ *  Should not block, and the wink behavior should occur in parallel to FIDO operations.
+ * 
+ * *Optional*.
+*/
 void device_wink();
 
 typedef enum {
@@ -93,21 +170,50 @@ typedef enum {
     DEVICE_FAST = 2,
 } DEVICE_CLOCK_RATE;
 
-// Set the clock rate for the device.
+/**
-// Three modes are targetted for Solo.
+ * Set the clock rate for the device.  This gets called only when the device is running in NFC mode.
-// 0: Lowest clock rate for NFC.
+ * Before Register and authenticate operations, the clock rate will be set to (1), and otherwise back to (0).
-// 1: fastest clock rate supported at a low power setting for NFC FIDO.
+ * @param param
-// 2: fastest clock rate.  Generally for USB interface.
+    0: Lowest clock rate for NFC.
+    1: fastest clock rate supported at a low power setting for NFC FIDO.
+    2: fastest clock rate.  Generally for USB interface.
+* *Optional*, by default nothing happens.
+*/
 void device_set_clock_rate(DEVICE_CLOCK_RATE param);
 
 // Returns NFC_IS_NA, NFC_IS_ACTIVE, or NFC_IS_AVAILABLE
 #define NFC_IS_NA        0
 #define NFC_IS_ACTIVE    1
 #define NFC_IS_AVAILABLE 2
+
+/** Returns NFC status of the device.
+ * @return 0 - NFC is not available.
+ *         1 - NFC is active, and is powering the chip for a transaction.
+ *         2 - NFC is available, but not currently being used.
+*/
 int device_is_nfc();
 
-void device_disable_up(bool request_active);
 
-void device_init_button();
+/** Return pointer to attestation key.
+ * @return pointer to attestation private key, raw encoded.  For P256, this is 32 bytes.
+*/
+uint8_t * device_get_attestation_key();
+
+/** Read the device's attestation certificate into buffer @dst.
+ * @param dst the destination to write the certificate.
+ * 
+ * The size of the certificate can be retrieved using `device_attestation_cert_der_get_size()`.
+*/
+void device_attestation_read_cert_der(uint8_t * dst);
+
+/** Returns the size in bytes of attestation_cert_der.
+ * @return number of bytes in attestation_cert_der, not including any C string null byte.
+*/
+uint16_t device_attestation_cert_der_get_size();
+
+/** Read the device's 16 byte AAGUID into a buffer.
+ * @param dst buffer to write 16 byte AAGUID into.
+ * */
+void device_read_aaguid(uint8_t * dst);
 
 #endif

fido2/example_app.h

@@ -0,0 +1,41 @@
+// Copyright 2019 SoloKeys Developers
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+#ifndef SRC_APP_H_
+#define SRC_APP_H_
+#include <stdbool.h>
+
+#define USING_DEV_BOARD
+
+#define USING_PC
+
+#define ENABLE_U2F
+#define ENABLE_U2F_EXTENSIONS
+//#define BRIDGE_TO_WALLET
+
+void printing_init();
+
+extern bool use_udp;
+
+//                              0xRRGGBB
+#define LED_INIT_VALUE			0x000800
+#define LED_WINK_VALUE			0x000008
+#define LED_MAX_SCALER          30
+#define LED_MIN_SCALER          1
+// # of ms between each change in LED
+#define HEARTBEAT_PERIOD        100
+// Each LED channel will be multiplied by a integer between LED_MAX_SCALER
+// and LED_MIN_SCALER to cause the slow pulse.  E.g.
+// #define LED_INIT_VALUE			0x301000
+// #define LED_MAX_SCALER          30
+// #define LED_MIN_SCALER          1
+// #define HEARTBEAT_PERIOD        8
+// Will pulse from 0x301000 to 0x903000 to 0x301000 ...
+// Which will take ~8 * (30)*2 ms
+
+
+#endif /* SRC_APP_H_ */

fido2/log.h

@@ -7,7 +7,10 @@
 #ifndef _LOG_H
 #define _LOG_H
 
+#ifdef APP_CONFIG
 #include APP_CONFIG
+#endif 
+
 #include <stdint.h>
 
 #ifndef DEBUG_LEVEL
@@ -50,7 +53,7 @@ typedef enum
     TAG_FILENO   = (1UL << 31)
 } LOG_TAG;
 
-#if DEBUG_LEVEL > 0
+#if defined(DEBUG_LEVEL) && DEBUG_LEVEL > 0
 
 void set_logging_mask(uint32_t mask);
 #define printf1(tag,fmt, ...) LOG(tag & ~(TAG_FILENO), NULL, 0, fmt, ##__VA_ARGS__)

fido2/u2f.c

@@ -299,14 +299,19 @@ static int16_t u2f_authenticate(struct u2f_authenticate_request * req, uint8_t c
 static int16_t u2f_register(struct u2f_register_request * req)
 {
     uint8_t i[] = {0x0,U2F_EC_FMT_UNCOMPRESSED};
-
+    uint8_t cert[1024];
     struct u2f_key_handle key_handle;
     uint8_t pubkey[64];
     uint8_t hash[32];
     uint8_t * sig = (uint8_t*)req;
 
 
-    const uint16_t attest_size = attestation_cert_der_get_size();
+    const uint16_t attest_size = device_attestation_cert_der_get_size();
+
+    if (attest_size > sizeof(cert)){
+        printf2(TAG_ERR,"Certificate is too large for buffer\r\n");
+        return U2F_SW_INSUFFICIENT_MEMORY;
+    }
 
 	if ( ! ctap_user_presence_test(750))
 	{
@@ -341,7 +346,8 @@ static int16_t u2f_register(struct u2f_register_request * req)
     u2f_response_writeback(i,1);
     u2f_response_writeback((uint8_t*)&key_handle,U2F_KEY_HANDLE_SIZE);
 
-    u2f_response_writeback(attestation_cert_der,attest_size);
+    device_attestation_read_cert_der(cert);
+    u2f_response_writeback(cert,attest_size);
 
     dump_signature_der(sig);
 

fido2/version.mk

@@ -0,0 +1,9 @@
+
+SOLO_VERSION_FULL?=$(shell git describe)
+SOLO_VERSION:=$(shell python -c 'print("$(SOLO_VERSION_FULL)".split("-")[0])')
+SOLO_VERSION_MAJ:=$(shell python -c 'print("$(SOLO_VERSION)".split(".")[0])')
+SOLO_VERSION_MIN:=$(shell python -c 'print("$(SOLO_VERSION)".split(".")[1])')
+SOLO_VERSION_PAT:=$(shell python -c 'print("$(SOLO_VERSION)".split(".")[2])')
+
+SOLO_VERSION_FLAGS := -DSOLO_VERSION_MAJ=$(SOLO_VERSION_MAJ) -DSOLO_VERSION_MIN=$(SOLO_VERSION_MIN) \
+	-DSOLO_VERSION_PATCH=$(SOLO_VERSION_PAT) -DSOLO_VERSION=\"$(SOLO_VERSION_FULL)\"

metadata/Solo-FIDO2-CTAP2-Authenticator.json

@@ -15,8 +15,7 @@
     "authenticationAlgorithm": 1,
     "publicKeyAlgAndEncoding": 260,
     "attestationTypes": [
-        15879,
+        15879
-        15880
     ],
     "userVerificationDetails": [
         [

mkdocs.yml

@@ -18,6 +18,7 @@ nav:
     - Application Ideas: solo/application-ideas.md
     - Running on Nucleo32 board: solo/nucleo32-board.md
     - Signed update process: solo/signed-updates.md
+    - Usage and Porting guide: solo/porting.md
     - Code documentation: solo/code-overview.md
     - Contributing Code: solo/contributing.md
     - Contributing Docs: solo/documenting.md

pc/device.c

@@ -11,7 +11,6 @@
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <netinet/in.h>
-#include <time.h>
 #include <string.h>
 #include <unistd.h>
 #include <signal.h>
@@ -25,8 +24,7 @@
 
 #define RK_NUM  50
 
-bool use_udp = true;
+static bool use_udp = true;
-static bool _up_disabled = false;
 
 struct ResidentKeyStore {
     CTAP_residentKey rks[RK_NUM];
@@ -34,21 +32,6 @@ struct ResidentKeyStore {
 
 void authenticator_initialize();
 
-uint32_t __device_status = 0;
-void device_set_status(uint32_t status)
-{
-    if (status != CTAPHID_STATUS_IDLE && __device_status != status)
-    {
-        ctaphid_update_status(status);
-    }
-    __device_status = status;
-}
-
-void device_reboot() 
-{
-    printf1(TAG_RED, "REBOOT command recieved!\r\n");
-    exit(100);
-}
 
 int udp_server()
 {
@@ -192,7 +175,6 @@ int usbhid_recv(uint8_t * msg)
     return l;
 }
 
-// Send 64 byte USB HID message
 void usbhid_send(uint8_t * msg)
 {
     if (use_udp)
@@ -209,6 +191,8 @@ void usbhid_send(uint8_t * msg)
     }
 }
 
+
+
 void usbhid_close()
 {
     close(fd);
@@ -272,14 +256,6 @@ void device_init(int argc, char *argv[])
 }
 
 
-void main_loop_delay()
-{
-    struct timespec ts;
-    ts.tv_sec = 0;
-    ts.tv_nsec = 1000*1000*100;
-    nanosleep(&ts,NULL);
-}
-
 void delay(uint32_t ms)
 {
     struct timespec ts;
@@ -289,40 +265,6 @@ void delay(uint32_t ms)
 }
 
 
-void heartbeat()
-{
-
-}
-
-void ctaphid_write_block(uint8_t * data)
-{
-    /*printf("<< "); dump_hex(data, 64);*/
-    usbhid_send(data);
-}
-
-
-int ctap_user_presence_test(uint32_t d)
-{
-    if (_up_disabled)
-    {
-        return 2;
-    }
-    return 1;
-}
-
-int ctap_user_verification(uint8_t arg)
-{
-    return 1;
-}
-
-
-uint32_t ctap_atomic_count(uint32_t amount)
-{
-    static uint32_t counter1 = 25;
-    counter1 += (amount + 1);
-    return counter1;
-}
-
 int ctap_generate_rng(uint8_t * dst, size_t num)
 {
     int ret;
@@ -344,10 +286,9 @@ int ctap_generate_rng(uint8_t * dst, size_t num)
 
 
 const char * state_file = "authenticator_state.bin";
-const char * backup_file = "authenticator_state2.bin";
 const char * rk_file = "resident_keys.bin";
 
-void authenticator_read_state(AuthenticatorState * state)
+int authenticator_read_state(AuthenticatorState * state)
 {
     FILE * f;
     int ret;
@@ -366,104 +307,35 @@ void authenticator_read_state(AuthenticatorState * state)
         perror("fwrite");
         exit(1);
     }
-
+    if (state->is_initialized == INITIALIZED_MARKER)
+        return 1;
+    else
+        return 0;
+    
 }
 
-void authenticator_read_backup_state(AuthenticatorState * state )
+
+void authenticator_write_state(AuthenticatorState * state)
 {
     FILE * f;
     int ret;
 
-    f = fopen(backup_file, "rb");
+    f = fopen(state_file, "wb+");
     if (f== NULL)
     {
         perror("fopen");
         exit(1);
     }
-
+    ret = fwrite(state, 1, sizeof(AuthenticatorState), f);
-    ret = fread(state, 1, sizeof(AuthenticatorState), f);
     fclose(f);
-    if(ret != sizeof(AuthenticatorState))
+    if (ret != sizeof(AuthenticatorState))
-    {
-        perror("fwrite");
-        exit(1);
-    }
-}
-
-void authenticator_write_state(AuthenticatorState * state, int backup)
-{
-    FILE * f;
-    int ret;
-
-    if (! backup)
-    {
-        f = fopen(state_file, "wb+");
-        if (f== NULL)
-        {
-            perror("fopen");
-            exit(1);
-        }
-        ret = fwrite(state, 1, sizeof(AuthenticatorState), f);
-        fclose(f);
-        if (ret != sizeof(AuthenticatorState))
-        {
-            perror("fwrite");
-            exit(1);
-        }
-    }
-    else
-    {
-
-        f = fopen(backup_file, "wb+");
-        if (f== NULL)
-        {
-            perror("fopen");
-            exit(1);
-        }
-        ret = fwrite(state, 1, sizeof(AuthenticatorState), f);
-        fclose(f);
-        if (ret != sizeof(AuthenticatorState))
-        {
-            perror("fwrite");
-            exit(1);
-        }
-    }
-}
-
-// Return 1 yes backup is init'd, else 0
-int authenticator_is_backup_initialized()
-{
-    uint8_t header[16];
-    AuthenticatorState * state = (AuthenticatorState*) header;
-    FILE * f;
-    int ret;
-
-    printf("state file exists\n");
-    f = fopen(backup_file, "rb");
-    if (f== NULL)
-    {
-        printf("Warning, backup file doesn't exist\n");
-        return 0;
-    }
-
-    ret = fread(header, 1, sizeof(header), f);
-    fclose(f);
-    if(ret != sizeof(header))
     {
         perror("fwrite");
         exit(1);
     }
 
-    return state->is_initialized == INITIALIZED_MARKER;
-
 }
 
-// Return 1 yes backup is init'd, else 0
-/*int authenticator_is_initialized()*/
-/*{*/
-
-
-/*}*/
 
 static void sync_rk()
 {
@@ -543,44 +415,18 @@ void authenticator_initialize()
             exit(1);
         }
 
-        f = fopen(backup_file, "wb+");
-        if (f== NULL)
-        {
-            perror("fopen");
-            exit(1);
-        }
-        mem = malloc(sizeof(AuthenticatorState));
-        memset(mem,0xff,sizeof(AuthenticatorState));
-        ret = fwrite(mem, 1, sizeof(AuthenticatorState), f);
-        free(mem);
-        fclose(f);
-        if (ret != sizeof(AuthenticatorState))
-        {
-            perror("fwrite");
-            exit(1);
-        }
-
         // resident_keys
         memset(&RK_STORE,0xff,sizeof(RK_STORE));
         sync_rk();
 
-
-
     }
 }
 
-void device_manage()
-{
-
-}
-
-
 
 void ctap_reset_rk()
 {
     memset(&RK_STORE,0xff,sizeof(RK_STORE));
     sync_rk();
-
 }
 
 uint32_t ctap_rk_size()
@@ -622,22 +468,9 @@ void ctap_overwrite_rk(int index, CTAP_residentKey * rk)
     }
 }
 
-void device_wink()
-{
-    printf("*WINK*\n");
-}
 
-int device_is_nfc()
-{
-    return 0;
-}
 
-void device_disable_up(bool disable)
-{
-    _up_disabled = disable;
-}
 
-void device_set_clock_rate(DEVICE_CLOCK_RATE param)
-{
 
-}
+
+

pc/main.c

@@ -9,6 +9,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <unistd.h>
+#include <time.h>
 
 #include "cbor.h"
 #include "device.h"
@@ -17,9 +18,12 @@
 #include "util.h"
 #include "log.h"
 #include "ctap.h"
-#include APP_CONFIG
+#include "app.h"
+
+
+void device_init(int argc, char *argv[]);
+int usbhid_recv(uint8_t * msg);
 
-#if !defined(TEST)
 
 
 int main(int argc, char *argv[])
@@ -29,20 +33,21 @@ int main(int argc, char *argv[])
 
     set_logging_mask(
 		/*0*/
-		//TAG_GEN|
+		// TAG_GEN|
 		// TAG_MC |
 		// TAG_GA |
 		TAG_WALLET |
 		TAG_STOR |
 		//TAG_NFC_APDU |
 		TAG_NFC |
-		//TAG_CP |
+		// TAG_CP |
 		// TAG_CTAP|
-		//TAG_HID|
+		// TAG_HID|
 		TAG_U2F|
-		//TAG_PARSE |
+		// TAG_PARSE |
 		//TAG_TIME|
 		// TAG_DUMP|
+		// TAG_DUMP2|
 		TAG_GREEN|
 		TAG_RED|
         TAG_EXT|
@@ -57,13 +62,6 @@ int main(int argc, char *argv[])
 
     while(1)
     {
-        if (millis() - t1 > HEARTBEAT_PERIOD)
-        {
-            heartbeat();
-            t1 = millis();
-        }
-
-        device_manage();
 
         if (usbhid_recv(hidmsg) > 0)
         {
@@ -73,14 +71,16 @@ int main(int argc, char *argv[])
         else
         {
         }
+
         ctaphid_check_timeouts();
 
+        struct timespec ts;
+        ts.tv_sec = 0;
+        ts.tv_nsec = 1000*1000*10;
+        nanosleep(&ts,NULL);
     }
 
     // Should never get here
-    usbhid_close();
     printf1(TAG_GREEN, "done\n");
     return 0;
 }
-
-#endif

targets/stm32l432/bootloader/bootloader.h

@@ -9,6 +9,7 @@
 #define _APP_H_
 #include <stdint.h>
 #include "version.h"
+#include "solo.h"
 #define DEBUG_UART      USART1
 
 #ifndef DEBUG_LEVEL

targets/stm32l432/build/application.mk

@@ -2,14 +2,14 @@ include build/common.mk
 
 # ST related
 SRC = src/main.c src/init.c src/redirect.c src/flash.c src/rng.c src/led.c src/device.c
-SRC += src/fifo.c src/crypto.c src/attestation.c src/nfc.c src/ams.c src/sense.c
+SRC += src/fifo.c src/attestation.c src/nfc.c src/ams.c src/sense.c
 SRC += src/startup_stm32l432xx.s src/system_stm32l4xx.c
 SRC += $(DRIVER_LIBS) $(USB_LIB)
 
 # FIDO2 lib
 SRC += ../../fido2/apdu.c ../../fido2/util.c ../../fido2/u2f.c ../../fido2/test_power.c
 SRC += ../../fido2/stubs.c ../../fido2/log.c  ../../fido2/ctaphid.c  ../../fido2/ctap.c
-SRC += ../../fido2/ctap_parse.c ../../fido2/main.c
+SRC += ../../fido2/ctap_parse.c ../../fido2/crypto.c
 SRC += ../../fido2/version.c
 SRC += ../../fido2/data_migration.c
 SRC += ../../fido2/extensions/extensions.c ../../fido2/extensions/solo.c
@@ -22,7 +22,9 @@ SRC += ../../crypto/cifra/src/sha512.c ../../crypto/cifra/src/blockwise.c
 OBJ1=$(SRC:.c=.o)
 OBJ=$(OBJ1:.s=.o)
 
-INC = -Isrc/ -Isrc/cmsis/ -Ilib/ -Ilib/usbd/ -I../../fido2/ -I../../fido2/extensions
+INC = -Isrc/ -Isrc/cmsis/ -Ilib/ -Ilib/usbd/
+
+INC+= -I../../fido2/ -I../../fido2/extensions
 INC += -I../../tinycbor/src -I../../crypto/sha256 -I../../crypto/micro-ecc
 INC += -I../../crypto/tiny-AES-c
 INC += -I../../crypto/cifra/src -I../../crypto/cifra/src/ext
@@ -66,9 +68,6 @@ all: $(TARGET).elf
 ../../crypto/micro-ecc/uECC.o: ../../crypto/micro-ecc/uECC.c
 	$(CC) $^ $(HW)  -O3 $(ECC_CFLAGS) -o $@
 
-%.o: %.s
-	$(CC) $^ $(HW)  -Os $(CFLAGS) -o $@
-
 %.elf: $(OBJ)
 	$(CC) $^ $(HW) $(LDFLAGS) -o $@
 	@echo "Built version: $(VERSION_FLAGS)"

targets/stm32l432/build/bootloader.mk

@@ -4,13 +4,14 @@ include build/common.mk
 SRC = bootloader/main.c bootloader/bootloader.c
 SRC += bootloader/pubkey_bootloader.c bootloader/version_check.c
 SRC += src/init.c src/redirect.c src/flash.c src/rng.c src/led.c src/device.c
-SRC += src/fifo.c src/crypto.c src/attestation.c src/sense.c
+SRC += src/fifo.c src/attestation.c src/sense.c
 SRC += src/startup_stm32l432xx.s src/system_stm32l4xx.c
 SRC += $(DRIVER_LIBS) $(USB_LIB)
 
 # FIDO2 lib
 SRC += ../../fido2/util.c ../../fido2/u2f.c ../../fido2/extensions/extensions.c
 SRC += ../../fido2/stubs.c ../../fido2/log.c  ../../fido2/ctaphid.c  ../../fido2/ctap.c
+SRC += ../../fido2/crypto.c
 
 # Crypto libs
 SRC += ../../crypto/sha256/sha256.c ../../crypto/micro-ecc/uECC.c

targets/stm32l432/build/common.mk

@@ -1,7 +1,10 @@
+include ../../fido2/version.mk
+
 CC=$(PREFIX)arm-none-eabi-gcc
 CP=$(PREFIX)arm-none-eabi-objcopy
 SZ=$(PREFIX)arm-none-eabi-size
 AR=$(PREFIX)arm-none-eabi-ar
+AS=$(PREFIX)arm-none-eabi-as
 
 DRIVER_LIBS := lib/stm32l4xx_hal_pcd.c lib/stm32l4xx_hal_pcd_ex.c lib/stm32l4xx_ll_gpio.c  \
        lib/stm32l4xx_ll_rcc.c lib/stm32l4xx_ll_rng.c lib/stm32l4xx_ll_tim.c  \
@@ -13,17 +16,20 @@ USB_LIB := lib/usbd/usbd_cdc.c lib/usbd/usbd_cdc_if.c lib/usbd/usbd_composite.c
        lib/usbd/usbd_ctlreq.c lib/usbd/usbd_desc.c lib/usbd/usbd_hid.c \
 	   lib/usbd/usbd_ccid.c
 
-VERSION_FULL?=$(shell git describe)
+VERSION_FULL?=$(SOLO_VERSION_FULL)
-VERSION:=$(shell python -c 'print("$(VERSION_FULL)".split("-")[0])')
+VERSION:=$(SOLO_VERSION)
-VERSION_MAJ:=$(shell python -c 'print("$(VERSION)".split(".")[0])')
+VERSION_MAJ:=$(SOLO_VERSION_MAJ)
-VERSION_MIN:=$(shell python -c 'print("$(VERSION)".split(".")[1])')
+VERSION_MIN:=$(SOLO_VERSION_MIN)
-VERSION_PAT:=$(shell python -c 'print("$(VERSION)".split(".")[2])')
+VERSION_PAT:=$(SOLO_VERSION_PAT)
 
 VERSION_FLAGS= -DSOLO_VERSION_MAJ=$(VERSION_MAJ) -DSOLO_VERSION_MIN=$(VERSION_MIN) \
 	-DSOLO_VERSION_PATCH=$(VERSION_PAT) -DSOLO_VERSION=\"$(VERSION_FULL)\"
 
 _all:
-	echo $(VERSION_FULL)
+	echo $(SOLO_VERSION_FULL)
-	echo $(VERSION_MAJ)
+	echo $(SOLO_VERSION_MAJ)
-	echo $(VERSION_MIN)
+	echo $(SOLO_VERSION_MIN)
-	echo $(VERSION_PAT)
+	echo $(SOLO_VERSION_PAT)
+
+%.o: %.s
+	$(AS) -o $@ $^

targets/stm32l432/src/app.h

@@ -8,6 +8,7 @@
 #define _APP_H_
 #include <stdint.h>
 #include "version.h"
+#include "solo.h"
 
 #define SOLO
 

targets/stm32l432/src/attestation.c

@@ -5,12 +5,16 @@
 // http://opensource.org/licenses/MIT>, at your option. This file may not be
 // copied, modified, or distributed except according to those terms.
 #include <stdint.h>
+#include <string.h>
 #include "crypto.h"
 #include "memory_layout.h"
+#include "device.h"
+#include "sense.h"
+#include "log.h"
 
 
 const uint8_t attestation_solo_cert_der[] =
-"\x30\x82\x02\xe1\x30\x82\x02\x88\xa0\x03\x02\x01\x02\x02\x01\x01\x30\x0a\x06\x08"
+"\x30\x82\x03\x03\x30\x82\x02\xaa\xa0\x03\x02\x01\x02\x02\x01\x01\x30\x0a\x06\x08"
 "\x2a\x86\x48\xce\x3d\x04\x03\x02\x30\x81\x80\x31\x0b\x30\x09\x06\x03\x55\x04\x06"
 "\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4d\x61\x72\x79\x6c"
 "\x61\x6e\x64\x31\x12\x30\x10\x06\x03\x55\x04\x0a\x0c\x09\x53\x6f\x6c\x6f\x20\x4b"
@@ -18,36 +22,37 @@ const uint8_t attestation_solo_cert_der[] =
 "\x41\x31\x15\x30\x13\x06\x03\x55\x04\x03\x0c\x0c\x73\x6f\x6c\x6f\x6b\x65\x79\x73"
 "\x2e\x63\x6f\x6d\x31\x21\x30\x1f\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x09\x01\x16"
 "\x12\x68\x65\x6c\x6c\x6f\x40\x73\x6f\x6c\x6f\x6b\x65\x79\x73\x2e\x63\x6f\x6d\x30"
-"\x20\x17\x0d\x31\x38\x31\x31\x31\x31\x31\x32\x35\x32\x30\x30\x5a\x18\x0f\x32\x30"
+"\x20\x17\x0d\x31\x39\x31\x32\x30\x31\x31\x39\x32\x33\x34\x39\x5a\x18\x0f\x32\x30"
-"\x36\x38\x31\x30\x32\x39\x31\x32\x35\x32\x30\x30\x5a\x30\x81\x92\x31\x0b\x30\x09"
+"\x36\x39\x31\x31\x31\x38\x31\x39\x32\x33\x34\x39\x5a\x30\x81\x91\x31\x0b\x30\x09"
 "\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08"
-"\x4d\x61\x72\x79\x6c\x61\x6e\x64\x31\x12\x30\x10\x06\x03\x55\x04\x0a\x0c\x09\x53"
+"\x4d\x61\x72\x79\x6c\x61\x6e\x64\x31\x11\x30\x0f\x06\x03\x55\x04\x0a\x0c\x08\x53"
-"\x6f\x6c\x6f\x20\x4b\x65\x79\x73\x31\x22\x30\x20\x06\x03\x55\x04\x0b\x0c\x19\x41"
+"\x6f\x6c\x6f\x4b\x65\x79\x73\x31\x22\x30\x20\x06\x03\x55\x04\x0b\x0c\x19\x41\x75"
-"\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x6f\x72\x20\x41\x74\x74\x65\x73\x74\x61"
+"\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x6f\x72\x20\x41\x74\x74\x65\x73\x74\x61\x74"
-"\x74\x69\x6f\x6e\x31\x15\x30\x13\x06\x03\x55\x04\x03\x0c\x0c\x73\x6f\x6c\x6f\x6b"
+"\x69\x6f\x6e\x31\x15\x30\x13\x06\x03\x55\x04\x03\x0c\x0c\x73\x6f\x6c\x6f\x6b\x65"
-"\x65\x79\x73\x2e\x63\x6f\x6d\x31\x21\x30\x1f\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01"
-"\x09\x01\x16\x12\x68\x65\x6c\x6c\x6f\x40\x73\x6f\x6c\x6f\x6b\x65\x79\x73\x2e\x63"
-"\x6f\x6d\x30\x59\x30\x13\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x08\x2a\x86\x48"
-"\xce\x3d\x03\x01\x07\x03\x42\x00\x04\x22\xfe\x0f\xb5\x2a\x78\xbe\xc6\x45\x37\x1a"
-"\x28\xa7\x57\x43\x49\xa4\x6f\x85\x4d\xca\x4e\x25\x1c\x9f\x75\x30\x3d\xbf\x10\xd5"
-"\xd2\xd2\x0b\xb9\x69\x2c\xdd\xb2\x5c\x14\xd8\x39\x85\x12\xf6\x23\xee\x91\xba\xc6"
-"\xac\xff\x4a\x1a\x27\xef\xe0\xc1\x54\x3f\xd4\xd9\xc5\xa3\x81\xdc\x30\x81\xd9\x30"
-"\x1d\x06\x03\x55\x1d\x0e\x04\x16\x04\x14\x3b\xe6\xd2\xc0\x6f\xf2\xe7\xb0\x7c\x9d"
-"\x9e\x28\xc0\x20\xb0\x0d\x07\xc8\x15\xc8\x30\x81\x9f\x06\x03\x55\x1d\x23\x04\x81"
-"\x97\x30\x81\x94\xa1\x81\x86\xa4\x81\x83\x30\x81\x80\x31\x0b\x30\x09\x06\x03\x55"
-"\x04\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4d\x61\x72"
-"\x79\x6c\x61\x6e\x64\x31\x12\x30\x10\x06\x03\x55\x04\x0a\x0c\x09\x53\x6f\x6c\x6f"
-"\x20\x4b\x65\x79\x73\x31\x10\x30\x0e\x06\x03\x55\x04\x0b\x0c\x07\x52\x6f\x6f\x74"
-"\x20\x43\x41\x31\x15\x30\x13\x06\x03\x55\x04\x03\x0c\x0c\x73\x6f\x6c\x6f\x6b\x65"
 "\x79\x73\x2e\x63\x6f\x6d\x31\x21\x30\x1f\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x09"
 "\x01\x16\x12\x68\x65\x6c\x6c\x6f\x40\x73\x6f\x6c\x6f\x6b\x65\x79\x73\x2e\x63\x6f"
-"\x6d\x82\x09\x00\xc4\x47\x63\x92\x8f\xf4\xbe\x8c\x30\x09\x06\x03\x55\x1d\x13\x04"
+"\x6d\x30\x59\x30\x13\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x08\x2a\x86\x48\xce"
-"\x02\x30\x00\x30\x0b\x06\x03\x55\x1d\x0f\x04\x04\x03\x02\x04\xf0\x30\x0a\x06\x08"
+"\x3d\x03\x01\x07\x03\x42\x00\x04\x22\xfe\x0f\xb5\x2a\x78\xbe\xc6\x45\x37\x1a\x28"
-"\x2a\x86\x48\xce\x3d\x04\x03\x02\x03\x47\x00\x30\x44\x02\x20\x71\x10\x46\x2c\xf5"
+"\xa7\x57\x43\x49\xa4\x6f\x85\x4d\xca\x4e\x25\x1c\x9f\x75\x30\x3d\xbf\x10\xd5\xd2"
-"\x16\x18\x97\x55\xca\x64\x50\x3b\x69\xb2\xdf\x17\x71\xab\xad\x8e\xc0\xd6\xa6\x07"
+"\xd2\x0b\xb9\x69\x2c\xdd\xb2\x5c\x14\xd8\x39\x85\x12\xf6\x23\xee\x91\xba\xc6\xac"
-"\x3d\x66\x8a\x3b\xbb\xfe\x61\x02\x20\x1e\x82\xef\xeb\x5e\x4e\x3a\x00\x84\x64\xd2"
+"\xff\x4a\x1a\x27\xef\xe0\xc1\x54\x3f\xd4\xd9\xc5\xa3\x81\xff\x30\x81\xfc\x30\x1d"
-"\xf8\x84\xc3\x78\x35\x93\x63\x81\x2e\xbe\xa6\x12\x32\x6e\x29\x90\xc8\x91\x4b\x71"
+"\x06\x03\x55\x1d\x0e\x04\x16\x04\x14\x3b\xe6\xd2\xc0\x6f\xf2\xe7\xb0\x7c\x9d\x9e"
-"\x52"
+"\x28\xc0\x20\xb0\x0d\x07\xc8\x15\xc8\x30\x81\x9f\x06\x03\x55\x1d\x23\x04\x81\x97"
+"\x30\x81\x94\xa1\x81\x86\xa4\x81\x83\x30\x81\x80\x31\x0b\x30\x09\x06\x03\x55\x04"
+"\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4d\x61\x72\x79"
+"\x6c\x61\x6e\x64\x31\x12\x30\x10\x06\x03\x55\x04\x0a\x0c\x09\x53\x6f\x6c\x6f\x20"
+"\x4b\x65\x79\x73\x31\x10\x30\x0e\x06\x03\x55\x04\x0b\x0c\x07\x52\x6f\x6f\x74\x20"
+"\x43\x41\x31\x15\x30\x13\x06\x03\x55\x04\x03\x0c\x0c\x73\x6f\x6c\x6f\x6b\x65\x79"
+"\x73\x2e\x63\x6f\x6d\x31\x21\x30\x1f\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x09\x01"
+"\x16\x12\x68\x65\x6c\x6c\x6f\x40\x73\x6f\x6c\x6f\x6b\x65\x79\x73\x2e\x63\x6f\x6d"
+"\x82\x09\x00\xc4\x47\x63\x92\x8f\xf4\xbe\x8c\x30\x09\x06\x03\x55\x1d\x13\x04\x02"
+"\x30\x00\x30\x0b\x06\x03\x55\x1d\x0f\x04\x04\x03\x02\x04\xf0\x30\x21\x06\x0b\x2b"
+"\x06\x01\x04\x01\x82\xe5\x1c\x01\x01\x04\x04\x12\x04\x10\x88\x76\x63\x1b\xd4\xa0"
+"\x42\x7f\x57\x73\x0e\xc7\x1c\x9e\x02\x79\x30\x0a\x06\x08\x2a\x86\x48\xce\x3d\x04"
+"\x03\x02\x03\x47\x00\x30\x44\x02\x20\x4d\xea\x09\x15\x6c\x86\x48\x57\x2a\xa8\x8d"
+"\x87\xc3\xfa\xb6\x6b\x29\x9b\xfb\x8b\x4d\x4d\x29\x77\x5b\xa1\x04\x4c\x7f\x12\x8d"
+"\x71\x02\x20\x47\x4c\x3d\xb2\xa1\x74\xe3\x9c\xfe\xe1\x23\xbf\xec\x47\x96\xf4\xe5"
+"\x9b\x65\x76\xac\xc8\x69\x1d\xe2\x74\xff\x4e\xa4\xcf\x02\x6d"
 ;
 
 const uint8_t attestation_hacker_cert_der[] =
@@ -95,12 +100,32 @@ const uint8_t attestation_hacker_cert_der[] =
 const uint16_t attestation_solo_cert_der_size = sizeof(attestation_solo_cert_der)-1;
 const uint16_t attestation_hacker_cert_der_size = sizeof(attestation_hacker_cert_der)-1;
 
-// const uint16_t attestation_key_size = 32;
-const uint8_t * attestation_cert_der = ((flash_attestation_page *)ATTESTATION_PAGE_ADDR)->attestation_cert;
 
-#include "log.h"
+uint8_t * device_get_attestation_key(){
-uint16_t attestation_cert_der_get_size(){
+    flash_attestation_page * page =(flash_attestation_page *)ATTESTATION_PAGE_ADDR;
+    return page->attestation_key;
+}
+
+uint16_t device_attestation_cert_der_get_size(){
     uint16_t sz = (uint16_t)((flash_attestation_page *)ATTESTATION_PAGE_ADDR)->attestation_cert_size;
     return sz;
 }
 
+void device_attestation_read_cert_der(uint8_t * dst){
+    const uint8_t * der = ((flash_attestation_page *)ATTESTATION_PAGE_ADDR)->attestation_cert;
+    uint16_t sz = device_attestation_cert_der_get_size();
+    memmove(dst, der, sz);
+
+    // Overwrite respective x509 fields if Tap or Somu.
+    if (memcmp(dst + 0x2c6, "\xea\x09\x15\x6c\x86\x48\x57\x2a\xa8\x8d", 10) == 0){
+        if (device_is_nfc()){
+            dst[0x2a2] = 0x89;//tap aaguid byte
+            memmove(dst + 0xac, "\x34\x33\x38\x5a\x18\x0f\x32\x30\x36\x39\x31\x31\x31\x38\x31\x39\x32\x34\x33\x38", 20);//tap-id
+            memmove(dst + 0x2c5, "\x6d\x7b\x41\x2b\xff\x57\xf0\x03\xbd\x5b\x39\x4a\xf7\xa9\x2d\x6d\xcb\x9e\x2d\x88\xbf\xb3\x93\xc5\x66\x3b\xd1\xbc\x34\xfa\x5c\x4c\x02\x20\x59\x01\x49\x39\x1b\xb7\xa9\x1c\xed\x49\x78\x4f\x92\xa9\x61\x14\xa5\x6e\x96\x3f\x29\x02\x93\xe0\x5d\xe2\x75\xd0\x60\xd9\x74\xc2", 66);//tap-sig 
+        } else if (tsc_sensor_exists()) {
+            dst[0x2a2] = 0x98;//somu aaguid byte
+            memmove(dst + 0xac, "\x35\x30\x32\x5a\x18\x0f\x32\x30\x36\x39\x31\x31\x31\x38\x31\x39\x32\x35\x30\x32", 20);//somu-id
+            memmove(dst + 0x2c5, "\x4d\x08\xc8\x9d\xc4\x50\x49\x70\x48\x4d\xd0\x12\xd9\x7c\x62\x5e\x6b\xd3\x84\xd5\x36\x42\xfe\x86\x8e\x7a\x23\x59\xa0\x20\xf0\xc5\x02\x20\x5f\x70\x93\x61\x5a\xe4\x20\xcf\xb9\x8a\xf5\xdd\x87\xd0\x48\x6d\x7d\x59\xef\x9e\x0e\x11\xa3\x8e\xf7\xe3\xe2\xf5\x35\x37\x99\x1a", 66);//somu-sig
+        }
+    }
+}

targets/stm32l432/src/crypto.c

@@ -1,369 +0,0 @@
-// Copyright 2019 SoloKeys Developers
-//
-// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
-// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
-// http://opensource.org/licenses/MIT>, at your option. This file may not be
-// copied, modified, or distributed except according to those terms.
-/*
- *  Wrapper for crypto implementation on device
- *
- * */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-
-#include "util.h"
-#include "crypto.h"
-
-#ifdef USE_SOFTWARE_IMPLEMENTATION
-
-#include "sha256.h"
-#include "uECC.h"
-#include "aes.h"
-#include "ctap.h"
-#include "device.h"
-// stuff for SHA512
-#include "sha2.h"
-#include "blockwise.h"
-#include APP_CONFIG
-#include "log.h"
-#include "memory_layout.h"
-
-
-typedef enum
-{
-    MBEDTLS_ECP_DP_NONE = 0,
-    MBEDTLS_ECP_DP_SECP192R1,      /*!< 192-bits NIST curve  */
-    MBEDTLS_ECP_DP_SECP224R1,      /*!< 224-bits NIST curve  */
-    MBEDTLS_ECP_DP_SECP256R1,      /*!< 256-bits NIST curve  */
-    MBEDTLS_ECP_DP_SECP384R1,      /*!< 384-bits NIST curve  */
-    MBEDTLS_ECP_DP_SECP521R1,      /*!< 521-bits NIST curve  */
-    MBEDTLS_ECP_DP_BP256R1,        /*!< 256-bits Brainpool curve */
-    MBEDTLS_ECP_DP_BP384R1,        /*!< 384-bits Brainpool curve */
-    MBEDTLS_ECP_DP_BP512R1,        /*!< 512-bits Brainpool curve */
-    MBEDTLS_ECP_DP_CURVE25519,           /*!< Curve25519               */
-    MBEDTLS_ECP_DP_SECP192K1,      /*!< 192-bits "Koblitz" curve */
-    MBEDTLS_ECP_DP_SECP224K1,      /*!< 224-bits "Koblitz" curve */
-    MBEDTLS_ECP_DP_SECP256K1,      /*!< 256-bits "Koblitz" curve */
-} mbedtls_ecp_group_id;
-
-
-static SHA256_CTX sha256_ctx;
-static cf_sha512_context sha512_ctx;
-static const struct uECC_Curve_t * _es256_curve = NULL;
-static const uint8_t * _signing_key = NULL;
-static int _key_len = 0;
-
-// Secrets for testing only
-static uint8_t master_secret[64];
-static uint8_t transport_secret[32];
-
-
-void crypto_sha256_init(void)
-{
-    sha256_init(&sha256_ctx);
-}
-
-void crypto_sha512_init(void)
-{
-    cf_sha512_init(&sha512_ctx);
-}
-
-void crypto_load_master_secret(uint8_t * key)
-{
-#if KEY_SPACE_BYTES < 96
-#error "need more key bytes"
-#endif
-    memmove(master_secret, key, 64);
-    memmove(transport_secret, key+64, 32);
-}
-
-void crypto_reset_master_secret(void)
-{
-    memset(master_secret, 0, 64);
-    memset(transport_secret, 0, 32);
-    ctap_generate_rng(master_secret, 64);
-    ctap_generate_rng(transport_secret, 32);
-}
-
-
-void crypto_sha256_update(uint8_t * data, size_t len)
-{
-    sha256_update(&sha256_ctx, data, len);
-}
-
-void crypto_sha512_update(const uint8_t * data, size_t len) {
-    cf_sha512_update(&sha512_ctx, data, len);
-}
-
-void crypto_sha256_update_secret()
-{
-    sha256_update(&sha256_ctx, master_secret, 32);
-}
-
-void crypto_sha256_final(uint8_t * hash)
-{
-    sha256_final(&sha256_ctx, hash);
-}
-
-void crypto_sha512_final(uint8_t * hash)
-{
-    // NB: there is also cf_sha512_digest
-    cf_sha512_digest_final(&sha512_ctx, hash);
-}
-
-void crypto_sha256_hmac_init(uint8_t * key, uint32_t klen, uint8_t * hmac)
-{
-    uint8_t buf[64];
-    unsigned int i;
-    memset(buf, 0, sizeof(buf));
-
-    if (key == CRYPTO_MASTER_KEY)
-    {
-        key = master_secret;
-        klen = sizeof(master_secret)/2;
-    }
-    else if (key == CRYPTO_TRANSPORT_KEY)
-    {
-        key = transport_secret;
-        klen = 32;
-    }
-
-    if(klen > 64)
-    {
-        printf2(TAG_ERR, "Error, key size must be <= 64\n");
-        exit(1);
-    }
-
-    memmove(buf, key, klen);
-
-    for (i = 0; i < sizeof(buf); i++)
-    {
-        buf[i] = buf[i] ^ 0x36;
-    }
-
-    crypto_sha256_init();
-    crypto_sha256_update(buf, 64);
-}
-
-void crypto_sha256_hmac_final(uint8_t * key, uint32_t klen, uint8_t * hmac)
-{
-    uint8_t buf[64];
-    unsigned int i;
-    crypto_sha256_final(hmac);
-    memset(buf, 0, sizeof(buf));
-    if (key == CRYPTO_MASTER_KEY)
-    {
-        key = master_secret;
-        klen = sizeof(master_secret)/2;
-    }
-    else if (key == CRYPTO_TRANSPORT_KEY2)
-    {
-        key = transport_secret;
-        klen = 32;
-    }
-
-
-    if(klen > 64)
-    {
-        printf2(TAG_ERR, "Error, key size must be <= 64\n");
-        exit(1);
-    }
-    memmove(buf, key, klen);
-
-    for (i = 0; i < sizeof(buf); i++)
-    {
-        buf[i] = buf[i] ^ 0x5c;
-    }
-
-    crypto_sha256_init();
-    crypto_sha256_update(buf, 64);
-    crypto_sha256_update(hmac, 32);
-    crypto_sha256_final(hmac);
-}
-
-
-void crypto_ecc256_init(void)
-{
-    uECC_set_rng((uECC_RNG_Function)ctap_generate_rng);
-    _es256_curve = uECC_secp256r1();
-}
-
-
-void crypto_ecc256_load_attestation_key(void)
-{
-    // static uint8_t _key [32];
-    flash_attestation_page * page =(flash_attestation_page *)ATTESTATION_PAGE_ADDR;
-    // memmove(_key, (uint8_t *)ATTESTATION_KEY_ADDR, 32);
-    _signing_key = page->attestation_key;
-    _key_len = 32;
-}
-
-void crypto_ecc256_sign(uint8_t * data, int len, uint8_t * sig)
-{
-    if ( uECC_sign(_signing_key, data, len, sig, _es256_curve) == 0)
-    {
-        printf2(TAG_ERR, "error, uECC failed\n");
-        exit(1);
-    }
-}
-
-void crypto_ecc256_load_key(uint8_t * data, int len, uint8_t * data2, int len2)
-{
-    static uint8_t privkey[32];
-    generate_private_key(data,len,data2,len2,privkey);
-    _signing_key = privkey;
-    _key_len = 32;
-}
-
-void crypto_ecdsa_sign(uint8_t * data, int len, uint8_t * sig, int MBEDTLS_ECP_ID)
-{
-
-    const struct uECC_Curve_t * curve = NULL;
-
-    switch(MBEDTLS_ECP_ID)
-    {
-        case MBEDTLS_ECP_DP_SECP192R1:
-            curve = uECC_secp192r1();
-            if (_key_len != 24)  goto fail;
-            break;
-        case MBEDTLS_ECP_DP_SECP224R1:
-            curve = uECC_secp224r1();
-            if (_key_len != 28)  goto fail;
-            break;
-        case MBEDTLS_ECP_DP_SECP256R1:
-            curve = uECC_secp256r1();
-            if (_key_len != 32)  goto fail;
-            break;
-        case MBEDTLS_ECP_DP_SECP256K1:
-            curve = uECC_secp256k1();
-            if (_key_len != 32)  goto fail;
-            break;
-        default:
-            printf2(TAG_ERR, "error, invalid ECDSA alg specifier\n");
-            exit(1);
-    }
-
-    if ( uECC_sign(_signing_key, data, len, sig, curve) == 0)
-    {
-        printf2(TAG_ERR, "error, uECC failed\n");
-        exit(1);
-    }
-    return;
-
-fail:
-    printf2(TAG_ERR, "error, invalid key length\n");
-    exit(1);
-
-}
-
-void generate_private_key(uint8_t * data, int len, uint8_t * data2, int len2, uint8_t * privkey)
-{
-    crypto_sha256_hmac_init(CRYPTO_MASTER_KEY, 0, privkey);
-    crypto_sha256_update(data, len);
-    crypto_sha256_update(data2, len2);
-    crypto_sha256_update(master_secret, 32);    // TODO AES
-    crypto_sha256_hmac_final(CRYPTO_MASTER_KEY, 0, privkey);
-
-    crypto_aes256_init(master_secret + 32, NULL);
-    crypto_aes256_encrypt(privkey, 32);
-}
-
-
-/*int uECC_compute_public_key(const uint8_t *private_key, uint8_t *public_key, uECC_Curve curve);*/
-void crypto_ecc256_derive_public_key(uint8_t * data, int len, uint8_t * x, uint8_t * y)
-{
-    uint8_t privkey[32];
-    uint8_t pubkey[64];
-
-    generate_private_key(data,len,NULL,0,privkey);
-
-    memset(pubkey,0,sizeof(pubkey));
-    uECC_compute_public_key(privkey, pubkey, _es256_curve);
-    memmove(x,pubkey,32);
-    memmove(y,pubkey+32,32);
-}
-void crypto_ecc256_compute_public_key(uint8_t * privkey, uint8_t * pubkey)
-{
-    uECC_compute_public_key(privkey, pubkey, _es256_curve);
-}
-
-
-void crypto_load_external_key(uint8_t * key, int len)
-{
-    _signing_key = key;
-    _key_len = len;
-}
-
-
-void crypto_ecc256_make_key_pair(uint8_t * pubkey, uint8_t * privkey)
-{
-    if (uECC_make_key(pubkey, privkey, _es256_curve) != 1)
-    {
-        printf2(TAG_ERR, "Error, uECC_make_key failed\n");
-        exit(1);
-    }
-}
-
-void crypto_ecc256_shared_secret(const uint8_t * pubkey, const uint8_t * privkey, uint8_t * shared_secret)
-{
-    if (uECC_shared_secret(pubkey, privkey, shared_secret, _es256_curve) != 1)
-    {
-        printf2(TAG_ERR, "Error, uECC_shared_secret failed\n");
-        exit(1);
-    }
-
-}
-
-struct AES_ctx aes_ctx;
-void crypto_aes256_init(uint8_t * key, uint8_t * nonce)
-{
-    if (key == CRYPTO_TRANSPORT_KEY)
-    {
-        AES_init_ctx(&aes_ctx, transport_secret);
-    }
-    else
-    {
-        AES_init_ctx(&aes_ctx, key);
-    }
-    if (nonce == NULL)
-    {
-        memset(aes_ctx.Iv, 0, 16);
-    }
-    else
-    {
-        memmove(aes_ctx.Iv, nonce, 16);
-    }
-}
-
-// prevent round key recomputation
-void crypto_aes256_reset_iv(uint8_t * nonce)
-{
-    if (nonce == NULL)
-    {
-        memset(aes_ctx.Iv, 0, 16);
-    }
-    else
-    {
-        memmove(aes_ctx.Iv, nonce, 16);
-    }
-}
-
-void crypto_aes256_decrypt(uint8_t * buf, int length)
-{
-    AES_CBC_decrypt_buffer(&aes_ctx, buf, length);
-}
-
-void crypto_aes256_encrypt(uint8_t * buf, int length)
-{
-    AES_CBC_encrypt_buffer(&aes_ctx, buf, length);
-}
-
-
-
-
-#else
-#error "No crypto implementation defined"
-#endif

targets/stm32l432/src/device.c

@@ -285,7 +285,7 @@ static void device_migrate(){
     }
 }
 
-void device_init(int argc, char *argv[])
+void device_init()
 {
 
     hw_init(LOW_FREQUENCY);
@@ -468,20 +468,8 @@ void heartbeat(void)
 
 }
 
-void authenticator_read_state(AuthenticatorState * a)
-{
-    uint32_t * ptr = (uint32_t *)flash_addr(STATE1_PAGE);
-    memmove(a,ptr,sizeof(AuthenticatorState));
-}
 
-void authenticator_read_backup_state(AuthenticatorState * a)
+static int authenticator_is_backup_initialized(void)
-{
-    uint32_t * ptr = (uint32_t *)flash_addr(STATE2_PAGE);
-    memmove(a,ptr,sizeof(AuthenticatorState));
-}
-
-// Return 1 yes backup is init'd, else 0
-int authenticator_is_backup_initialized(void)
 {
     uint8_t header[16];
     uint32_t * ptr = (uint32_t *)flash_addr(STATE2_PAGE);
@@ -490,20 +478,35 @@ int authenticator_is_backup_initialized(void)
     return state->is_initialized == INITIALIZED_MARKER;
 }
 
-void authenticator_write_state(AuthenticatorState * a, int backup)
+int authenticator_read_state(AuthenticatorState * a)
 {
-    if (! backup)
+    uint32_t * ptr = (uint32_t *) flash_addr(STATE1_PAGE);
-    {
+    memmove(a, ptr, sizeof(AuthenticatorState));
-        flash_erase_page(STATE1_PAGE);
 
-        flash_write(flash_addr(STATE1_PAGE), (uint8_t*)a, sizeof(AuthenticatorState));
+    if (a->is_initialized != INITIALIZED_MARKER){
-    }
-    else
-    {
-        flash_erase_page(STATE2_PAGE);
 
-        flash_write(flash_addr(STATE2_PAGE), (uint8_t*)a, sizeof(AuthenticatorState));
+        if (authenticator_is_backup_initialized()){
+            printf1(TAG_ERR,"Warning: memory corruption detected.  restoring from backup..\n");
+            ptr = (uint32_t *) flash_addr(STATE2_PAGE);
+            memmove(a, ptr, sizeof(AuthenticatorState));
+            authenticator_write_state(a);
+            return 1;
+        }
+
+        return 0;
     }
+
+    return 1;
+}
+
+
+void authenticator_write_state(AuthenticatorState * a)
+{
+    flash_erase_page(STATE1_PAGE);
+    flash_write(flash_addr(STATE1_PAGE), (uint8_t*)a, sizeof(AuthenticatorState));
+
+    flash_erase_page(STATE2_PAGE);
+    flash_write(flash_addr(STATE2_PAGE), (uint8_t*)a, sizeof(AuthenticatorState));
 }
 
 #if !defined(IS_BOOTLOADER)
@@ -752,11 +755,6 @@ int ctap_generate_rng(uint8_t * dst, size_t num)
 }
 
 
-int ctap_user_verification(uint8_t arg)
-{
-    return 1;
-}
-
 void ctap_reset_rk(void)
 {
     int i;
@@ -861,6 +859,17 @@ void boot_solo_bootloader(void)
 
 }
 
+void device_read_aaguid(uint8_t * dst){
+    uint8_t * aaguid = (uint8_t *)"\x88\x76\x63\x1b\xd4\xa0\x42\x7f\x57\x73\x0e\xc7\x1c\x9e\x02\x79";
+    memmove(dst, aaguid, 16);
+    if (device_is_nfc()){
+        dst[0] = 0x89;
+    }
+    else if (tsc_sensor_exists()){
+        dst[0] = 0x98;
+    }
+    dump_hex1(TAG_GREEN,dst, 16);
+}
 
 
 void _Error_Handler(char *file, int line)

targets/stm32l432/src/main.c

@@ -4,105 +4,83 @@
 // http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
 // http://opensource.org/licenses/MIT>, at your option. This file may not be
 // copied, modified, or distributed except according to those terms.
-#include <stdint.h>
 #include <stdio.h>
-#include <string.h>
+#include <stdlib.h>
-#include "stm32l4xx.h"
+#include <stdint.h>
-#include "stm32l4xx_ll_gpio.h"
+#include <stdbool.h>
-#include "stm32l4xx_ll_rcc.h"
+#include <unistd.h>
-#include "stm32l4xx_ll_system.h"
-#include "stm32l4xx_ll_pwr.h"
-#include "stm32l4xx_ll_utils.h"
-#include "stm32l4xx_ll_cortex.h"
-#include "stm32l4xx_ll_gpio.h"
-#include "stm32l4xx_ll_usart.h"
-#include "stm32l4xx_ll_bus.h"
-#include "stm32l4xx_ll_usb.h"
 
-#include "stm32l4xx_hal_pcd.h"
+#include "cbor.h"
-
-#include "usbd_core.h"
-#include "usbd_desc.h"
-#include "usbd_hid.h"
-/*#include "usbd_hid.h"*/
-
-#include APP_CONFIG
-#include "flash.h"
-#include "rng.h"
-#include "led.h"
 #include "device.h"
+#include "ctaphid.h"
+//#include "bsp.h"
 #include "util.h"
-#include "fifo.h"
 #include "log.h"
+#include "ctap.h"
+#include APP_CONFIG
 
-#ifdef TEST_SOLO_STM32
+#if !defined(TEST)
-#define Error_Handler() _Error_Handler(__FILE__,__LINE__)
-#define PAGE_SIZE		2048
-#define PAGES			128
-// Pages 119-127 are data
-#define	COUNTER2_PAGE	(PAGES - 4)
-#define	COUNTER1_PAGE	(PAGES - 3)
-#define	STATE2_PAGE		(PAGES - 2)
-#define	STATE1_PAGE		(PAGES - 1)
 
 
-uint32_t __90_ms = 0;
+int main(int argc, char *argv[])
-#define IS_BUTTON_PRESSED()         (0  == (LL_GPIO_ReadInputPort(SOLO_BUTTON_PORT) & SOLO_BUTTON_PIN))
-
-// Timer6 overflow handler.  happens every ~90ms.
-void TIM6_DAC_IRQHandler()
 {
-    // timer is only 16 bits, so roll it over here
+    uint8_t hidmsg[64];
-    TIM6->SR = 0;
+    uint32_t t1 = 0;
-    __90_ms += 1;
+
-}
+    set_logging_mask(
+		/*0*/
+		//TAG_GEN|
+		// TAG_MC |
+		// TAG_GA |
+		TAG_WALLET |
+		TAG_STOR |
+		//TAG_NFC_APDU |
+		TAG_NFC |
+		//TAG_CP |
+		// TAG_CTAP|
+		//TAG_HID|
+		TAG_U2F|
+		//TAG_PARSE |
+		//TAG_TIME|
+		// TAG_DUMP|
+		TAG_GREEN|
+		TAG_RED|
+        TAG_EXT|
+        TAG_CCID|
+		TAG_ERR
+	);
+
+    device_init(argc, argv);
+
+    memset(hidmsg,0,sizeof(hidmsg));
 
-uint32_t millis(void)
-{
-    return (((uint32_t)TIM6->CNT) + (__90_ms * 90));
-}
 
-void _Error_Handler(char *file, int line)
-{
     while(1)
     {
-    }
+        if (millis() - t1 > HEARTBEAT_PERIOD)
-}
-
-int main(void)
-{
-    uint32_t i = 5;
-
-    hw_init();
-
-    LL_GPIO_SetPinMode(SOLO_BUTTON_PORT,SOLO_BUTTON_PIN,LL_GPIO_MODE_INPUT);
-    LL_GPIO_SetPinPull(SOLO_BUTTON_PORT,SOLO_BUTTON_PIN,LL_GPIO_PULL_UP);
-    flash_option_bytes_init(1);
-
-    while (1)
-    {
-        uint32_t t0 = millis() % 750;
-        if (! IS_BUTTON_PRESSED())
         {
-            if (t0 < 750*1/3)
+            heartbeat();
-            {
+            t1 = millis();
-                led_rgb(0 | (0 << 8) | (i << 17));
+        }
-            }
+
-            else if (t0 < 750*2/3)
+        device_manage();
-            {
+
-                led_rgb(0 | (i << 8) | (0 << 16));
+        if (usbhid_recv(hidmsg) > 0)
-            }
+        {
-            else
+            ctaphid_handle_packet(hidmsg);
-            {
+            memset(hidmsg, 0, sizeof(hidmsg));
-                led_rgb(i | (0 << 8) | (0 << 16));
-            }
         }
         else
         {
-            led_rgb(0x151515);
         }
+        ctaphid_check_timeouts();
 
     }
+
+    // Should never get here
+    usbhid_close();
+    printf1(TAG_GREEN, "done\n");
+    return 0;
 }
 
-#endif
+#endif

targets/stm32l432/src/memory_layout.h

@@ -67,7 +67,7 @@ typedef struct flash_memory_st flash_memory_st;
 #include <assert.h>
 static_assert(sizeof(flash_memory_st) == 256*1024, "Data structure doesn't match flash size");
 
-#define ATTESTATION_CONFIGURED_TAG      0xaa551e78
+#define ATTESTATION_CONFIGURED_TAG      0xaa551e79
 
 struct flash_attestation_page{
   uint8_t attestation_key[32];

targets/stm32l432/src/solo.h

@@ -0,0 +1,25 @@
+#ifndef _SOLO_H_
+#define _SOLO_H_
+
+void device_init();
+
+void main_loop_delay();
+void usbhid_init();
+void usbhid_close();
+int usbhid_recv(uint8_t * msg);
+
+void heartbeat();
+
+// Called each main loop.  Doesn't need to do anything.
+void device_manage();
+
+void device_init_button();
+
+// For Solo hacker
+void boot_solo_bootloader();
+void boot_st_bootloader();
+
+
+void delay(uint32_t ms);
+
+#endif

tools/requirements.txt

@@ -1,5 +1,5 @@
 ecdsa
-fido2
+fido2==0.7.3
 intelhex
 pyserial
 solo-python