sha.h
All headers- SHA_CBLOCK
- SHA_DIGEST_LENGTH
- SHA1_Init
- SHA1_Update
- SHA1_Final
- SHA1
- SHA1_Transform
- CRYPTO_fips_186_2_prf
- SHA-224
- SHA224_CBLOCK
- SHA224_DIGEST_LENGTH
- SHA224_Init
- SHA224_Update
- SHA224_Final
- SHA224
- SHA-256
- SHA256_CBLOCK
- SHA256_DIGEST_LENGTH
- SHA256_Init
- SHA256_Update
- SHA256_Final
- SHA256
- SHA256_Transform
- SHA256_TransformBlocks
- SHA384_CBLOCK
- SHA384_DIGEST_LENGTH
- SHA384_Init
- SHA384_Update
- SHA384_Final
- SHA384
- SHA-512
- SHA512_CBLOCK
- SHA512_DIGEST_LENGTH
- SHA512_Init
- SHA512_Update
- SHA512_Final
- SHA512
- SHA512_Transform
- SHA512_256_DIGEST_LENGTH
- SHA512_256_Init
- SHA512_256_Update
- SHA512_256_Final
- SHA512_256
SHA_CBLOCK is the block size of SHA-1.
#define SHA_CBLOCK 64
SHA_DIGEST_LENGTH is the length of a SHA-1 digest.
#define SHA_DIGEST_LENGTH 20
SHA1_Init initialises sha and returns one.
OPENSSL_EXPORT int SHA1_Init(SHA_CTX *sha);
SHA1_Update adds len bytes from data to sha and returns one.
OPENSSL_EXPORT int SHA1_Update(SHA_CTX *sha, const void *data, size_t len);
SHA1_Final adds the final padding to sha and writes the resulting digest to out, which must have at least SHA_DIGEST_LENGTH bytes of space. It returns one.
OPENSSL_EXPORT int SHA1_Final(uint8_t out[SHA_DIGEST_LENGTH], SHA_CTX *sha);
SHA1 writes the digest of len bytes from data to out and returns out. There must be at least SHA_DIGEST_LENGTH bytes of space in out.
OPENSSL_EXPORT uint8_t *SHA1(const uint8_t *data, size_t len, uint8_t out[SHA_DIGEST_LENGTH]);
SHA1_Transform is a low-level function that performs a single, SHA-1 block transformation using the state from sha and SHA_CBLOCK bytes from block.
OPENSSL_EXPORT void SHA1_Transform(SHA_CTX *sha, const uint8_t block[SHA_CBLOCK]);
CRYPTO_fips_186_2_prf derives out_len bytes from xkey using the PRF defined in FIPS 186-2, Appendix 3.1, with change notice 1 applied. The b parameter is 160 and seed, XKEY, is also 160 bits. The optional XSEED user input is all zeros.
The PRF generates a sequence of 320-bit numbers. Each number is encoded as a 40-byte string in big-endian and then concatenated to form out. If out_len is not a multiple of 40, the result is truncated. This matches the construction used in Section 7 of RFC 4186 and Section 7 of RFC 4187.
This PRF is based on SHA-1, a weak hash function, and should not be used in new protocols. It is provided for compatibility with some legacy EAP methods.
OPENSSL_EXPORT void CRYPTO_fips_186_2_prf( uint8_t *out, size_t out_len, const uint8_t xkey[SHA_DIGEST_LENGTH]);
SHA-224.
SHA224_CBLOCK is the block size of SHA-224.
#define SHA224_CBLOCK 64
SHA224_DIGEST_LENGTH is the length of a SHA-224 digest.
#define SHA224_DIGEST_LENGTH 28
SHA224_Init initialises sha and returns 1.
OPENSSL_EXPORT int SHA224_Init(SHA256_CTX *sha);
SHA224_Update adds len bytes from data to sha and returns 1.
OPENSSL_EXPORT int SHA224_Update(SHA256_CTX *sha, const void *data, size_t len);
SHA224_Final adds the final padding to sha and writes the resulting digest to out, which must have at least SHA224_DIGEST_LENGTH bytes of space. It returns 1.
OPENSSL_EXPORT int SHA224_Final(uint8_t out[SHA224_DIGEST_LENGTH], SHA256_CTX *sha);
SHA224 writes the digest of len bytes from data to out and returns out. There must be at least SHA224_DIGEST_LENGTH bytes of space in out.
OPENSSL_EXPORT uint8_t *SHA224(const uint8_t *data, size_t len, uint8_t out[SHA224_DIGEST_LENGTH]);
SHA-256.
SHA256_CBLOCK is the block size of SHA-256.
#define SHA256_CBLOCK 64
SHA256_DIGEST_LENGTH is the length of a SHA-256 digest.
#define SHA256_DIGEST_LENGTH 32
SHA256_Init initialises sha and returns 1.
OPENSSL_EXPORT int SHA256_Init(SHA256_CTX *sha);
SHA256_Update adds len bytes from data to sha and returns 1.
OPENSSL_EXPORT int SHA256_Update(SHA256_CTX *sha, const void *data, size_t len);
SHA256_Final adds the final padding to sha and writes the resulting digest to out, which must have at least SHA256_DIGEST_LENGTH bytes of space. It returns one on success and zero on programmer error.
OPENSSL_EXPORT int SHA256_Final(uint8_t out[SHA256_DIGEST_LENGTH], SHA256_CTX *sha);
SHA256 writes the digest of len bytes from data to out and returns out. There must be at least SHA256_DIGEST_LENGTH bytes of space in out.
OPENSSL_EXPORT uint8_t *SHA256(const uint8_t *data, size_t len, uint8_t out[SHA256_DIGEST_LENGTH]);
SHA256_Transform is a low-level function that performs a single, SHA-256 block transformation using the state from sha and SHA256_CBLOCK bytes from block.
OPENSSL_EXPORT void SHA256_Transform(SHA256_CTX *sha, const uint8_t block[SHA256_CBLOCK]);
SHA256_TransformBlocks is a low-level function that takes num_blocks * SHA256_CBLOCK bytes of data and performs SHA-256 transforms on it to update state. You should not use this function unless you are implementing a derivative of SHA-256.
OPENSSL_EXPORT void SHA256_TransformBlocks(uint32_t state[8], const uint8_t *data, size_t num_blocks);
SHA-384.
SHA384_CBLOCK is the block size of SHA-384.
#define SHA384_CBLOCK 128
SHA384_DIGEST_LENGTH is the length of a SHA-384 digest.
#define SHA384_DIGEST_LENGTH 48
SHA384_Init initialises sha and returns 1.
OPENSSL_EXPORT int SHA384_Init(SHA512_CTX *sha);
SHA384_Update adds len bytes from data to sha and returns 1.
OPENSSL_EXPORT int SHA384_Update(SHA512_CTX *sha, const void *data, size_t len);
SHA384_Final adds the final padding to sha and writes the resulting digest to out, which must have at least SHA384_DIGEST_LENGTH bytes of space. It returns one on success and zero on programmer error.
OPENSSL_EXPORT int SHA384_Final(uint8_t out[SHA384_DIGEST_LENGTH], SHA512_CTX *sha);
SHA384 writes the digest of len bytes from data to out and returns out. There must be at least SHA384_DIGEST_LENGTH bytes of space in out.
OPENSSL_EXPORT uint8_t *SHA384(const uint8_t *data, size_t len, uint8_t out[SHA384_DIGEST_LENGTH]);
SHA-512.
SHA512_CBLOCK is the block size of SHA-512.
#define SHA512_CBLOCK 128
SHA512_DIGEST_LENGTH is the length of a SHA-512 digest.
#define SHA512_DIGEST_LENGTH 64
SHA512_Init initialises sha and returns 1.
OPENSSL_EXPORT int SHA512_Init(SHA512_CTX *sha);
SHA512_Update adds len bytes from data to sha and returns 1.
OPENSSL_EXPORT int SHA512_Update(SHA512_CTX *sha, const void *data, size_t len);
SHA512_Final adds the final padding to sha and writes the resulting digest to out, which must have at least SHA512_DIGEST_LENGTH bytes of space. It returns one on success and zero on programmer error.
OPENSSL_EXPORT int SHA512_Final(uint8_t out[SHA512_DIGEST_LENGTH], SHA512_CTX *sha);
SHA512 writes the digest of len bytes from data to out and returns out. There must be at least SHA512_DIGEST_LENGTH bytes of space in out.
OPENSSL_EXPORT uint8_t *SHA512(const uint8_t *data, size_t len, uint8_t out[SHA512_DIGEST_LENGTH]);
SHA512_Transform is a low-level function that performs a single, SHA-512 block transformation using the state from sha and SHA512_CBLOCK bytes from block.
OPENSSL_EXPORT void SHA512_Transform(SHA512_CTX *sha, const uint8_t block[SHA512_CBLOCK]);
SHA-512-256
See https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf section 5.3.6
#define SHA512_256_DIGEST_LENGTH 32
SHA512_256_Init initialises sha and returns 1.
OPENSSL_EXPORT int SHA512_256_Init(SHA512_CTX *sha);
SHA512_256_Update adds len bytes from data to sha and returns 1.
OPENSSL_EXPORT int SHA512_256_Update(SHA512_CTX *sha, const void *data, size_t len);
SHA512_256_Final adds the final padding to sha and writes the resulting digest to out, which must have at least SHA512_256_DIGEST_LENGTH bytes of space. It returns one on success and zero on programmer error.
OPENSSL_EXPORT int SHA512_256_Final(uint8_t out[SHA512_256_DIGEST_LENGTH], SHA512_CTX *sha);
SHA512_256 writes the digest of len bytes from data to out and returns out. There must be at least SHA512_256_DIGEST_LENGTH bytes of space in out.
OPENSSL_EXPORT uint8_t *SHA512_256(const uint8_t *data, size_t len, uint8_t out[SHA512_256_DIGEST_LENGTH]);
The SHA family of hash functions (SHA-1 and SHA-2).