CryptoAuthLib
Microchip CryptoAuthentication Library
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CryptoAuthLib Basic API methods for SHA command. More...
Data Structures | |
struct | hw_sha256_ctx |
Functions | |
ATCA_STATUS | atcab_sha_base (uint8_t mode, uint16_t length, const uint8_t *message, uint8_t *data_out, uint16_t *data_out_size) |
Executes SHA command, which computes a SHA-256 or HMAC/SHA-256 digest for general purpose use by the host system. More... | |
ATCA_STATUS | atcab_sha_start (void) |
Executes SHA command to initialize SHA-256 calculation engine. More... | |
ATCA_STATUS | atcab_sha_update (const uint8_t *message) |
Executes SHA command to add 64 bytes of message data to the current context. More... | |
ATCA_STATUS | atcab_sha_end (uint8_t *digest, uint16_t length, const uint8_t *message) |
Executes SHA command to complete SHA-256 or HMAC/SHA-256 operation. More... | |
ATCA_STATUS | atcab_sha_read_context (uint8_t *context, uint16_t *context_size) |
Executes SHA command to read the SHA-256 context back. Only for ATECC608A with SHA-256 contexts. HMAC not supported. More... | |
ATCA_STATUS | atcab_sha_write_context (const uint8_t *context, uint16_t context_size) |
Executes SHA command to write (restore) a SHA-256 context into the the device. Only supported for ATECC608A with SHA-256 contexts. More... | |
ATCA_STATUS | atcab_sha (uint16_t length, const uint8_t *message, uint8_t *digest) |
Use the SHA command to compute a SHA-256 digest. More... | |
ATCA_STATUS | atcab_hw_sha2_256_init (atca_sha256_ctx_t *ctx) |
Initialize a SHA context for performing a hardware SHA-256 operation on a device. Note that only one SHA operation can be run at a time. More... | |
ATCA_STATUS | atcab_hw_sha2_256_update (atca_sha256_ctx_t *ctx, const uint8_t *data, size_t data_size) |
Add message data to a SHA context for performing a hardware SHA-256 operation on a device. More... | |
ATCA_STATUS | atcab_hw_sha2_256_finish (atca_sha256_ctx_t *ctx, uint8_t *digest) |
Finish SHA-256 digest for a SHA context for performing a hardware SHA-256 operation on a device. More... | |
ATCA_STATUS | atcab_hw_sha2_256 (const uint8_t *data, size_t data_size, uint8_t *digest) |
Use the SHA command to compute a SHA-256 digest. More... | |
ATCA_STATUS | atcab_sha_hmac_init (atca_hmac_sha256_ctx_t *ctx, uint16_t key_slot) |
Executes SHA command to start an HMAC/SHA-256 operation. More... | |
ATCA_STATUS | atcab_sha_hmac_update (atca_hmac_sha256_ctx_t *ctx, const uint8_t *data, size_t data_size) |
Executes SHA command to add an arbitrary amount of message data to a HMAC/SHA-256 operation. More... | |
ATCA_STATUS | atcab_sha_hmac_finish (atca_hmac_sha256_ctx_t *ctx, uint8_t *digest, uint8_t target) |
Executes SHA command to complete a HMAC/SHA-256 operation. More... | |
ATCA_STATUS | atcab_sha_hmac (const uint8_t *data, size_t data_size, uint16_t key_slot, uint8_t *digest, uint8_t target) |
Use the SHA command to compute an HMAC/SHA-256 operation. More... | |
CryptoAuthLib Basic API methods for SHA command.
The SHA command Computes a SHA-256 or HMAC/SHA digest for general purpose use by the host system.