88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
/*
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* wallet.h
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*
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* Created on: Jul 7, 2018
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* Author: conor
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*/
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#ifndef WALLET_H_
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#define WALLET_H_
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#include <stdint.h>
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#define WALLET_MAX_BUFFER (32 + 255)
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// Sign request
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// op: 0x10
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// authType: 0x00 //sign?
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// reserved: 0x00 // mbedtls signature alg identifier
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// pinAuth: data[16]
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// challenge-length: 1-255
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// challenge: data[1-255]
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// keyID-length: 1-255
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// keyID: data[1-255]
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// Resp: normal U2F auth response
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// Register request
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// op: 0x11
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// formatType: 0x00 //sign? [0x00: WIF, 0x01: raw]
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// keyType: 0x03 // mbedtls signature alg identifier
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// key-length: 1-255
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// key: data[1-255]
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// Resp: modded U2F auth response
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// PIN request
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// op: 0x12
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// subcmd: 0x00 // Same as CTAP pin subcommands
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// reserved: 0x03 // mbedtls signature alg identifier
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// publickey: data[64]
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// OR
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// pinAuth data[64]
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// OR
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// pinHashEnc data[64]
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// OR
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// newPinEnc data[64]
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// key: data[1-255]
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// keyID-length: 1-255
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// keyID: data[1-255]
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// Resp: modded U2F auth response
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// Returns public key OR pinAuth
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// Only response to this challenge to prevent interference
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#define WALLET_TAG "\x8C\x27\x90\xf6"
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#define WALLET_MIN_LENGTH (4 + 4 + 16)
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#define WALLET_VERSION "WALLET_V1.0"
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#define MAX_CHALLENGE_SIZE 229
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#define MAX_KEYID_SIZE 228
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#define MAX_PAYLOAD_SIZE (255 - 16 - 4 - 4)
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typedef struct
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{
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uint8_t operation;
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uint8_t p1;
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uint8_t p2;
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uint8_t numArgs;
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uint8_t tag[4];
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uint8_t pinAuth[16];
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uint8_t payload[MAX_PAYLOAD_SIZE];
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}__attribute__((packed)) wallet_request;
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int16_t bridge_u2f_to_wallet(uint8_t * chal, uint8_t * appid, uint8_t klen, uint8_t * keyh);
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// return 1 if request is a wallet request
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int is_wallet_device(uint8_t * req, int len);
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void wallet_init();
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#endif /* WALLET_H_ */
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