Hashing#

sl_se_hash_type_t#

sl_se_hash_type_t

Hash algorithms.

sl_se_hash#

sl_status_t sl_se_hash (sl_se_command_context_t * cmd_ctx, sl_se_hash_type_t hash_type, const uint8_t * message, unsigned int message_size, uint8_t * digest, size_t digest_len)

Produce a message digest (a hash block) using the input data.

This function generates a message digest adhering to the given inputs. For instance, if the algorithm is chosen to be SHA-256, it will generate a 32 bytes message digest computed based on the input message. This function supports SHA-1, SHA-256 and SHA-512 algorithms.

Returns

• Status code, sl_status.h.

sl_se_hash_sha1_multipart_starts#

sl_status_t sl_se_hash_sha1_multipart_starts (sl_se_sha1_multipart_context_t * sha1_ctx, sl_se_command_context_t * cmd_ctx)

Prepare a SHA1 hash streaming command context object.

Prepare a SHA1 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_multipart_update() and sl_se_hash_multipart_finish().

Returns

• Status code, sl_status.h.

sl_se_hash_sha224_multipart_starts#

sl_status_t sl_se_hash_sha224_multipart_starts (sl_se_sha224_multipart_context_t * sha224_ctx, sl_se_command_context_t * cmd_ctx)

Prepare a SHA224 hash streaming command context object.

Prepare a SHA224 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_multipart_update() and sl_se_hash_multipart_finish().

Returns

• Status code, sl_status.h.

sl_se_hash_sha256_multipart_starts#

sl_status_t sl_se_hash_sha256_multipart_starts (sl_se_sha256_multipart_context_t * sha256_ctx, sl_se_command_context_t * cmd_ctx)

Prepare a SHA256 hash streaming command context object.

Prepare a SHA256 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_multipart_update() and sl_se_hash_multipart_finish().

Returns

• Status code, sl_status.h.

sl_se_hash_sha384_multipart_starts#

sl_status_t sl_se_hash_sha384_multipart_starts (sl_se_sha384_multipart_context_t * sha384_ctx, sl_se_command_context_t * cmd_ctx)

Prepare a SHA384 streaming command context object.

Prepare a SHA384 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_multipart_update() and sl_se_hash_multipart_finish().

Returns

• Status code, sl_status.h.

sl_se_hash_sha512_multipart_starts#

sl_status_t sl_se_hash_sha512_multipart_starts (sl_se_sha512_multipart_context_t * sha512_ctx, sl_se_command_context_t * cmd_ctx)

Prepare a SHA512 streaming command context object.

Prepare a SHA512 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_multipart_update() and sl_se_hash_multipart_finish().

Returns

• Status code, sl_status.h.

sl_se_hash_multipart_starts#

sl_status_t sl_se_hash_multipart_starts (void * hash_type_ctx, sl_se_command_context_t * cmd_ctx, sl_se_hash_type_t hash_type)

Prepare a hash streaming command context object.

Prepare a hash (message digest) streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_multipart_update() and sl_se_hash_multipart_finish().

Returns

• Status code, sl_status.h.

sl_se_hash_multipart_update#

sl_status_t sl_se_hash_multipart_update (void * hash_type_ctx, sl_se_command_context_t * cmd_ctx, const uint8_t * input, size_t input_len)

Feeds an input buffer into an ongoing hash computation.

This function is called between sl_se_hash_multipart_starts() and sl_se_hash_multipart_finish(). This function can be called repeatedly.

Returns

• Status code, sl_status.h.

sl_se_hash_multipart_finish#

sl_status_t sl_se_hash_multipart_finish (void * hash_type_ctx, sl_se_command_context_t * cmd_ctx, uint8_t * digest_out, size_t digest_len)

Finish a hash streaming operation and return the resulting hash digest.

This function is called after sl_se_hash_multipart_update().

Returns

• Status code, sl_status.h.

SL_SE_HASH_STREAMING_INIT_DEFAULT#

#define SL_SE_HASH_STREAMING_INIT_DEFAULT

{ NULL, 0, 0, NULL }

Default streaming hash context.

SL_SE_SHA1_STREAMING_INIT_DEFAULT#

#define SL_SE_SHA1_STREAMING_INIT_DEFAULT

{ { 0 }, { 0 }, { 0 } }

SHA1 streaming hash context.

SL_SE_SHA224_STREAMING_INIT_DEFAULT#

#define SL_SE_SHA224_STREAMING_INIT_DEFAULT

{ { 0 }, { 0 }, { 0 } }

SHA224 streaming hash context.

SL_SE_SHA256_STREAMING_INIT_DEFAULT#

#define SL_SE_SHA256_STREAMING_INIT_DEFAULT

{ { 0 }, { 0 }, { 0 } }

SHA256 streaming hash context.

SL_SE_SHA384_STREAMING_INIT_DEFAULT#

#define SL_SE_SHA384_STREAMING_INIT_DEFAULT

{ { 0 }, { 0 }, { 0 } }

SHA384 streaming hash context.

SL_SE_SHA512_STREAMING_INIT_DEFAULT#

#define SL_SE_SHA512_STREAMING_INIT_DEFAULT

{ { 0 }, { 0 }, { 0 } }

SHA512 streaming hash context.