diff options
Diffstat (limited to 'libhashsum.h')
| -rw-r--r-- | libhashsum.h | 72 |
1 files changed, 59 insertions, 13 deletions
diff --git a/libhashsum.h b/libhashsum.h index 460b86b..600a2c0 100644 --- a/libhashsum.h +++ b/libhashsum.h @@ -5,6 +5,8 @@ #include <stddef.h> #include <stdint.h> +#include <libsha1.h> + #if defined(__GNUC__) # define LIBHASHSUM_USERET_ __attribute__((__warn_unused_result__)) @@ -25,7 +27,9 @@ enum libhashsum_algorithm { LIBHASHSUM_RIPEMD_128, /**< RIPEMD-128 */ LIBHASHSUM_RIPEMD_160, /**< RIPEMD-160 */ LIBHASHSUM_RIPEMD_256, /**< RIPEMD-256 */ - LIBHASHSUM_RIPEMD_320 /**< RIPEMD-320 */ + LIBHASHSUM_RIPEMD_320, /**< RIPEMD-320 */ + LIBHASHSUM_SHA0, /**< SHA0 */ + LIBHASHSUM_SHA1 /**< SHA1 */ }; @@ -64,6 +68,16 @@ enum libhashsum_algorithm { */ #define LIBHASHSUM_RIPEMD_320_HASH_SIZE 40 +/** + * The value of `struct libhashsum_hasher.hash_size` for `LIBHASHSUM_SHA0` + */ +#define LIBHASHSUM_SHA0_HASH_SIZE 20 + +/** + * The value of `struct libhashsum_hasher.hash_size` for `LIBHASHSUM_SHA1` + */ +#define LIBHASHSUM_SHA1_HASH_SIZE 20 + /** * Hash state @@ -152,6 +166,11 @@ union libhashsum_state { uint32_t w2[5]; uint64_t count; } ripemd_320; + + struct { + struct libsha1_state s; + uint8_t sum[20]; + } sha0, sha1; }; @@ -181,7 +200,8 @@ struct libhashsum_hasher { * This will be set to `NULL` when the structure * is initialised, but will be set to a pointer * to a buffer inside `.state` once `.finalise_const` - * or `.finalise` has been called + * or `.finalise` has been called with successful + * completion */ unsigned char *hash_output; @@ -206,27 +226,29 @@ struct libhashsum_hasher { * Update the hash state given it's final * input data * - * @param this The object containing this function pointer - * @param data The new input data - * @param bytes The number of bytes available in `data` - * @return 0 on success, -1 on failure + * @param this The object containing this function pointer + * @param data The new input data, the function may rewrite it's content + * @param bytes The number of bytes available in `data` for reading + * @param extra_bits Additional bits in `data` not covered by `bytes` + * @return 0 on success, -1 on failure * * @throws EINVAL `extra_bits` is greater than 7 * @throws EINVAL `extra_bits` is non-zero but `.supports_non_whole_bytes` is 0 */ LIBHASHSUM_1_NONNULL_ - int (*finalise_const)(struct libhashsum_hasher *this, const void *data, unsigned extra_bits, size_t bytes); + int (*finalise_const)(struct libhashsum_hasher *this, const void *data, size_t bytes, unsigned extra_bits); /** * Update the hash state given it's final * input data * - * @param this The object containing this function pointer - * @param data The new input data, the function may rewrite it's content - * @param bytes The number of bytes available in `data` for reading - * @param size `bytes` plus any number of additional bytes available - * for the function to write additional data block padding - * @return 0 on success, -1 on failure + * @param this The object containing this function pointer + * @param data The new input data, the function may rewrite it's content + * @param bytes The number of bytes available in `data` for reading + * @param extra_bits Additional bits in `data` not covered by `bytes` + * @param size `bytes` plus any number of additional bytes available + * for the function to write additional data block padding + * @return 0 on success, -1 on failure * * @throws EINVAL `extra_bits` is greater than 7 * @throws EINVAL `extra_bits` is non-zero but `.supports_non_whole_bytes` is 0 @@ -340,5 +362,29 @@ int libhashsum_init_ripemd_256_hasher(struct libhashsum_hasher *this); LIBHASHSUM_1_NONNULL_ int libhashsum_init_ripemd_320_hasher(struct libhashsum_hasher *this); +/** + * Create an initialised state for a SHA0 + * and return hash functions and details + * + * @param this The output parameter for the functions, details, and state + * @return 0 on success, -1 on failure + * + * Failure isn't actually possible, so this function always return 0 + */ +LIBHASHSUM_1_NONNULL_ +int libhashsum_init_sha0_hasher(struct libhashsum_hasher *this); + +/** + * Create an initialised state for a SHA1 + * and return hash functions and details + * + * @param this The output parameter for the functions, details, and state + * @return 0 on success, -1 on failure + * + * Failure isn't actually possible, so this function always return 0 + */ +LIBHASHSUM_1_NONNULL_ +int libhashsum_init_sha1_hasher(struct libhashsum_hasher *this); + #endif |