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encrypt credential with aes for start

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Conor Patrick
2018-05-26 11:36:34 -04:00
parent 2b482f0c43
commit 52cc61a575
4 changed files with 120 additions and 102 deletions
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20
ctap.h
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@@ -91,8 +91,11 @@
#define CTAP_MAX_MESSAGE_SIZE 1024
#define CREDENTIAL_TAG_SIZE 16
#define CREDENTIAL_NONCE_SIZE 8
#define CREDENTIAL_COUNTER_SIZE (4)
#define CREDENTIAL_ID_SIZE (CREDENTIAL_TAG_SIZE + USER_ID_MAX_SIZE + USER_NAME_LIMIT + CREDENTIAL_COUNTER_SIZE + 1)
#define CREDENTIAL_ENC_SIZE 144 // pad to multiple of 16 bytes
#define CREDENTIAL_PAD_SIZE (CREDENTIAL_ENC_SIZE - (USER_ID_MAX_SIZE + USER_NAME_LIMIT + CREDENTIAL_COUNTER_SIZE + 1))
#define CREDENTIAL_ID_SIZE (CREDENTIAL_TAG_SIZE + CREDENTIAL_NONCE_SIZE + CREDENTIAL_ENC_SIZE)
#define PUB_KEY_CRED_PUB_KEY 0x01
#define PUB_KEY_CRED_UNKNOWN 0x3F
@@ -109,15 +112,16 @@ typedef struct
uint8_t id[USER_ID_MAX_SIZE];
uint8_t id_size;
uint8_t name[USER_NAME_LIMIT];
} CTAP_userEntity;
}__attribute__((packed)) CTAP_userEntity;
union _credential {
struct Credential {
uint8_t tag[CREDENTIAL_TAG_SIZE];
uint8_t nonce[CREDENTIAL_NONCE_SIZE];
struct {
uint8_t tag[CREDENTIAL_TAG_SIZE];
CTAP_userEntity user;
uint32_t count;
}__attribute__((packed)) fields;
uint8_t id[CREDENTIAL_ID_SIZE];
uint8_t _pad[CREDENTIAL_PAD_SIZE];
} __attribute__((packed)) enc;
};
typedef struct
@@ -125,7 +129,7 @@ typedef struct
uint8_t aaguid[16];
uint8_t credLenH;
uint8_t credLenL;
union _credential credential;
struct Credential credential;
} __attribute__((packed)) CTAP_attestHeader;
typedef struct
@@ -179,7 +183,7 @@ typedef struct
typedef struct
{
uint8_t type;
union _credential credential;
struct Credential credential;
} CTAP_credentialDescriptor;
typedef struct