unleashed-firmware/applications/main/u2f/hmac_sha256.h
Nikolay Minaylov ce50b09b28
Remove hmac_sha256 from public API ()
Co-authored-by: あく <alleteam@gmail.com>
2023-03-21 21:29:54 +09:00

38 lines
1.1 KiB
C

#pragma once
#include "sha256.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct hmac_context {
void (*init_hash)(const struct hmac_context* context);
void (*update_hash)(
const struct hmac_context* context,
const uint8_t* message,
unsigned message_size);
void (*finish_hash)(const struct hmac_context* context, uint8_t* hash_result);
unsigned block_size; /* Hash function block size in bytes, eg 64 for SHA-256. */
unsigned result_size; /* Hash function result size in bytes, eg 32 for SHA-256. */
uint8_t* tmp; /* Must point to a buffer of at least (2 * result_size + block_size) bytes. */
} hmac_context;
typedef struct hmac_sha256_context {
hmac_context hmac_ctx;
sha256_context sha_ctx;
uint8_t tmp[32 * 2 + 64];
} hmac_sha256_context;
void hmac_sha256_init(hmac_sha256_context* ctx, const uint8_t* K);
void hmac_sha256_update(
const hmac_sha256_context* ctx,
const uint8_t* message,
unsigned message_size);
void hmac_sha256_finish(const hmac_sha256_context* ctx, const uint8_t* K, uint8_t* hash_result);
#ifdef __cplusplus
}
#endif