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hashes/sha1: changed data-parameter types to void*

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This commit is contained in:
BytesGalore 2016-07-26 10:03:58 +02:00
parent 8518843a40
commit 68d9f07eee
2 changed files with 30 additions and 29 deletions
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24
sys/hashes/sha1.c
View File

@ -114,10 +114,11 @@ static void sha1_update_byte(sha1_context *ctx, uint8_t data)
sha1_add_uncounted(ctx, data); sha1_add_uncounted(ctx, data);
} }
void sha1_update(sha1_context *ctx, const uint8_t *data, size_t len) void sha1_update(sha1_context *ctx, const void *data, size_t len)
{ {
const uint8_t *d = data;
while (len--) { while (len--) {
sha1_update_byte(ctx, *(data++)); sha1_update_byte(ctx, *(d++));
} }
} }
@ -142,7 +143,7 @@ static void sha1_pad(sha1_context *s)
sha1_add_uncounted(s, s->byte_count << 3); sha1_add_uncounted(s, s->byte_count << 3);
} }
void sha1_final(sha1_context *ctx, uint8_t *dst) void sha1_final(sha1_context *ctx, void *digest)
{ {
/* Pad to complete the last block */ /* Pad to complete the last block */
sha1_pad(ctx); sha1_pad(ctx);
@ -157,31 +158,32 @@ void sha1_final(sha1_context *ctx, uint8_t *dst)
} }
/* Copy the content of the hash (20 characters) */ /* Copy the content of the hash (20 characters) */
memcpy(dst, ctx->state, 20); memcpy(digest, ctx->state, 20);
} }
void sha1(uint8_t *dst, const uint8_t *src, size_t len) void sha1(void *digest, const void *data, size_t len)
{ {
sha1_context ctx; sha1_context ctx;
sha1_init(&ctx); sha1_init(&ctx);
sha1_update(&ctx, (unsigned char *) src, len); sha1_update(&ctx, (unsigned char *) data, len);
sha1_final(&ctx, dst); sha1_final(&ctx, digest);
} }
#define HMAC_IPAD 0x36 #define HMAC_IPAD 0x36
#define HMAC_OPAD 0x5c #define HMAC_OPAD 0x5c
void sha1_init_hmac(sha1_context *ctx, const uint8_t *key, size_t key_length) void sha1_init_hmac(sha1_context *ctx, const void *key, size_t key_length)
{ {
uint8_t i; uint8_t i;
const uint8_t *k = key;
memset(ctx->key_buffer, 0, SHA1_BLOCK_LENGTH); memset(ctx->key_buffer, 0, SHA1_BLOCK_LENGTH);
if (key_length > SHA1_BLOCK_LENGTH) { if (key_length > SHA1_BLOCK_LENGTH) {
/* Hash long keys */ /* Hash long keys */
sha1_init(ctx); sha1_init(ctx);
while (key_length--) { while (key_length--) {
sha1_update_byte(ctx, *key++); sha1_update_byte(ctx, *k++);
} }
sha1_final(ctx, ctx->key_buffer); sha1_final(ctx, ctx->key_buffer);
} }
@ -196,7 +198,7 @@ void sha1_init_hmac(sha1_context *ctx, const uint8_t *key, size_t key_length)
} }
} }
void sha1_final_hmac(sha1_context *ctx, uint8_t *dst) void sha1_final_hmac(sha1_context *ctx, void *digest)
{ {
uint8_t i; uint8_t i;
@ -211,5 +213,5 @@ void sha1_final_hmac(sha1_context *ctx, uint8_t *dst)
sha1_update_byte(ctx, ctx->inner_hash[i]); sha1_update_byte(ctx, ctx->inner_hash[i]);
} }
sha1_final(ctx, dst); sha1_final(ctx, digest);
} }

35
sys/include/hashes/sha1.h
View File

@ -73,47 +73,46 @@ void sha1_init(sha1_context *ctx);
/** /**
* @brief Update the SHA-1 context with a portion of the message being hashed * @brief Update the SHA-1 context with a portion of the message being hashed
* *
* @param[in] ctx Pointer to the SHA-1 context to update * @param[in] ctx Pointer to the SHA-1 context to update
* @param[in] data Input data * @param[in] data Input data
* @param[in] len Length of @p data * @param[in] len Length of @p data
*/ */
void sha1_update(sha1_context *ctx, const uint8_t *data, size_t len); void sha1_update(sha1_context *ctx, const void *data, size_t len);
/** /**
* @brief Finalizes the SHA-1 message digest * @brief Finalizes the SHA-1 message digest
* *
* @param[in] ctx Pointer to the SHA-1 context * @param[in] ctx Pointer to the SHA-1 context
* @param[out] dst Result location, must be 20 byte * @param[out] digest Result location, must be 20 byte
* *
*/ */
void sha1_final(sha1_context *ctx, uint8_t *dst); void sha1_final(sha1_context *ctx, void *digest);
/** /**
* @brief Calculate a SHA1 hash from the given data * @brief Calculate a SHA1 hash from the given data
* *
* @param[out] dst Result location, must be 20 byte * @param[out] digest Result location, must be 20 byte
* @param[in] src Input data * @param[in] data Input data
* @param[in] len Length of @p buf * @param[in] len Length of @p buf
*/ */
void sha1(uint8_t *dst, const uint8_t *src, size_t len); void sha1(void *digest, const void *data, size_t len);
/** /**
* @brief Initialize SHA-1 message digest context with MAC * @brief Initialize SHA-1 message digest context with MAC
* *
* @param[in] ctx Pointer to the SHA-1 context to initialize * @param[in] ctx Pointer to the SHA-1 context to initialize
* @param[in] key Key used in the HMAC-SHA1 computation * @param[in] key Key used in the HMAC-SHA1 computation
* @param[in] key_length The size in bytes of @p key * @param[in] key_length The size in bytes of @p key
*/ */
void sha1_init_hmac(sha1_context *ctx, const uint8_t *key, size_t key_length); void sha1_init_hmac(sha1_context *ctx, const void *key, size_t key_length);
/** /**
* @brief Finalizes the SHA-1 message digest with MAC * @brief Finalizes the SHA-1 message digest with MAC
* *
* @param[in] s Pointer to the SHA-1 context * @param[in] ctx Pointer to the SHA-1 context
* @param[out] dst Result location, must be 20 byte * @param[out] digest Result location, must be 20 byte
* @return Calculated digest
*/ */
void sha1_final_hmac(sha1_context *ctx, uint8_t *dst); void sha1_final_hmac(sha1_context *ctx, void *digest);
#ifdef __cplusplus #ifdef __cplusplus
} }