sha.h

All headers

The SHA family of hash functions (SHA-1 and SHA-2).

  1. SHA_CBLOCK
  2. SHA_DIGEST_LENGTH
  3. SHA1_Init
  4. SHA1_Update
  5. SHA1_Final
  6. SHA1
  7. SHA1_Transform
  8. sha_state_st
  9. SHA-224
  10. SHA224_CBLOCK
  11. SHA224_DIGEST_LENGTH
  12. SHA224_Init
  13. SHA224_Update
  14. SHA224_Final
  15. SHA224
  16. SHA-256
  17. SHA256_CBLOCK
  18. SHA256_DIGEST_LENGTH
  19. SHA256_Init
  20. SHA256_Update
  21. SHA256_Final
  22. SHA256
  23. SHA256_Transform
  24. sha256_state_st
  25. SHA-384
  26. SHA384_CBLOCK
  27. SHA384_DIGEST_LENGTH
  28. SHA384_Init
  29. SHA384_Update
  30. SHA384_Final
  31. SHA384
  32. SHA384_Transform
  33. SHA-512
  34. SHA512_CBLOCK
  35. SHA512_DIGEST_LENGTH
  36. SHA512_Init
  37. SHA512_Update
  38. SHA512_Final
  39. SHA512
  40. SHA512_Transform
  41. sha512_state_st

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 md, which must have at least SHA_DIGEST_LENGTH bytes of space. It returns one.

OPENSSL_EXPORT int SHA1_Final(uint8_t *md, 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);

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);
struct sha_state_st {
#if defined(OPENSSL_WINDOWS)
  uint32_t h[5];
#else
  // wpa_supplicant accesses |h0|..|h4| so we must support those names
  // for compatibility with it until it can be updated.
  union {
    uint32_t h[5];
    struct {
      uint32_t h0;
      uint32_t h1;
      uint32_t h2;
      uint32_t h3;
      uint32_t h4;
    };
  };
#endif
  uint32_t Nl, Nh;
  uint8_t data[SHA_CBLOCK];
  unsigned num;
};

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 md, which must have at least SHA224_DIGEST_LENGTH bytes of space. It returns one on success and zero on programmer error.

OPENSSL_EXPORT int SHA224_Final(uint8_t *md, 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);

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 md, 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 *md, 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_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);
struct sha256_state_st {
  uint32_t h[8];
  uint32_t Nl, Nh;
  uint8_t data[SHA256_CBLOCK];
  unsigned num, md_len;
};

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 md, 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 *md, 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_Transform is a low-level function that performs a single, SHA-384 block transformation using the state from sha and SHA384_CBLOCK bytes from block.

OPENSSL_EXPORT void SHA384_Transform(SHA512_CTX *sha, const uint8_t *block);

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 md, 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 *md, 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_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);
struct sha512_state_st {
  uint64_t h[8];
  uint64_t Nl, Nh;
  union {
    uint64_t d[16];
    uint8_t p[128];
  } u;
  unsigned num, md_len;
};