Header definitions for the SHA256 hash function. More...
Header definitions for the SHA256 hash function.
Definition in file sha256.h.
Go to the source code of this file.
Data Structures | |
struct | hmac_context_t |
Context for HMAC operations based on sha256. More... | |
struct | sha256_chain_idx_elm_t |
sha256-chain indexed element More... | |
Macros | |
#define | SHA256_DIGEST_LENGTH 32 |
Length of SHA256 digests in bytes. | |
#define | SHA256_INTERNAL_BLOCK_SIZE (64) |
512 Bit (64 Byte) internally used block size for sha256 | |
Typedefs | |
typedef sha2xx_context_t | sha256_context_t |
Context for cipher operations based on sha256. | |
Functions | |
void | sha256_init (sha256_context_t *ctx) |
SHA-256 initialization. More... | |
static void | sha256_update (sha256_context_t *ctx, const void *data, size_t len) |
Add bytes into the hash. More... | |
static void | sha256_final (sha256_context_t *ctx, void *digest) |
SHA-256 finalization. More... | |
void * | sha256 (const void *data, size_t len, void *digest) |
A wrapper function to simplify the generation of a hash, this is useful for generating sha256 for one buffer. More... | |
void | hmac_sha256_init (hmac_context_t *ctx, const void *key, size_t key_length) |
hmac_sha256_init HMAC SHA-256 calculation. More... | |
void | hmac_sha256_update (hmac_context_t *ctx, const void *data, size_t len) |
hmac_sha256_update Add data bytes for HMAC calculation More... | |
void | hmac_sha256_final (hmac_context_t *ctx, void *digest) |
hmac_sha256_final HMAC SHA-256 finalization. More... | |
const void * | hmac_sha256 (const void *key, size_t key_length, const void *data, size_t len, void *digest) |
function to compute a hmac-sha256 from a given message More... | |
void * | sha256_chain (const void *seed, size_t seed_length, size_t elements, void *tail_element) |
function to produce a hash chain starting with a given seed element. More... | |
void * | sha256_chain_with_waypoints (const void *seed, size_t seed_length, size_t elements, void *tail_element, sha256_chain_idx_elm_t *waypoints, size_t *waypoints_length) |
function to produce a hash chain starting with a given seed element. More... | |
int | sha256_chain_verify_element (void *element, size_t element_index, void *tail_element, size_t chain_length) |
function to verify if a given chain element is part of the chain. More... | |