/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#ifndef OPENSSL_HEADER_SHA_H
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#define OPENSSL_HEADER_SHA_H
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#include <openssl/base.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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// The SHA family of hash functions (SHA-1 and SHA-2).
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// SHA_CBLOCK is the block size of SHA-1.
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#define SHA_CBLOCK 64
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// SHA_DIGEST_LENGTH is the length of a SHA-1 digest.
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#define SHA_DIGEST_LENGTH 20
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// SHA1_Init initialises |sha| and returns one.
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OPENSSL_EXPORT int SHA1_Init(SHA_CTX *sha);
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// SHA1_Update adds |len| bytes from |data| to |sha| and returns one.
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OPENSSL_EXPORT int SHA1_Update(SHA_CTX *sha, const void *data, size_t len);
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// SHA1_Final adds the final padding to |sha| and writes the resulting digest
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// to |md|, which must have at least |SHA_DIGEST_LENGTH| bytes of space. It
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// returns one.
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OPENSSL_EXPORT int SHA1_Final(uint8_t *md, SHA_CTX *sha);
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// SHA1 writes the digest of |len| bytes from |data| to |out| and returns
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// |out|. There must be at least |SHA_DIGEST_LENGTH| bytes of space in
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// |out|.
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OPENSSL_EXPORT uint8_t *SHA1(const uint8_t *data, size_t len, uint8_t *out);
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// SHA1_Transform is a low-level function that performs a single, SHA-1 block
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// transformation using the state from |sha| and |SHA_CBLOCK| bytes from
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// |block|.
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OPENSSL_EXPORT void SHA1_Transform(SHA_CTX *sha, const uint8_t *block);
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struct sha_state_st {
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#if defined(OPENSSL_WINDOWS)
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uint32_t h[5];
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#else
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// wpa_supplicant accesses |h0|..|h4| so we must support those names
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// for compatibility with it until it can be updated.
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union {
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uint32_t h[5];
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struct {
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uint32_t h0;
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uint32_t h1;
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uint32_t h2;
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uint32_t h3;
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uint32_t h4;
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};
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};
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#endif
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uint32_t Nl, Nh;
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uint8_t data[SHA_CBLOCK];
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unsigned num;
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};
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// SHA-224.
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// SHA224_CBLOCK is the block size of SHA-224.
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#define SHA224_CBLOCK 64
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// SHA224_DIGEST_LENGTH is the length of a SHA-224 digest.
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#define SHA224_DIGEST_LENGTH 28
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// SHA224_Init initialises |sha| and returns 1.
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OPENSSL_EXPORT int SHA224_Init(SHA256_CTX *sha);
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// SHA224_Update adds |len| bytes from |data| to |sha| and returns 1.
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OPENSSL_EXPORT int SHA224_Update(SHA256_CTX *sha, const void *data, size_t len);
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// SHA224_Final adds the final padding to |sha| and writes the resulting digest
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// to |md|, which must have at least |SHA224_DIGEST_LENGTH| bytes of space. It
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// returns one on success and zero on programmer error.
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OPENSSL_EXPORT int SHA224_Final(uint8_t *md, SHA256_CTX *sha);
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// SHA224 writes the digest of |len| bytes from |data| to |out| and returns
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// |out|. There must be at least |SHA224_DIGEST_LENGTH| bytes of space in
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// |out|.
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OPENSSL_EXPORT uint8_t *SHA224(const uint8_t *data, size_t len, uint8_t *out);
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// SHA-256.
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// SHA256_CBLOCK is the block size of SHA-256.
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#define SHA256_CBLOCK 64
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// SHA256_DIGEST_LENGTH is the length of a SHA-256 digest.
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#define SHA256_DIGEST_LENGTH 32
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// SHA256_Init initialises |sha| and returns 1.
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OPENSSL_EXPORT int SHA256_Init(SHA256_CTX *sha);
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// SHA256_Update adds |len| bytes from |data| to |sha| and returns 1.
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OPENSSL_EXPORT int SHA256_Update(SHA256_CTX *sha, const void *data, size_t len);
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// SHA256_Final adds the final padding to |sha| and writes the resulting digest
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// to |md|, which must have at least |SHA256_DIGEST_LENGTH| bytes of space. It
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// returns one on success and zero on programmer error.
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OPENSSL_EXPORT int SHA256_Final(uint8_t *md, SHA256_CTX *sha);
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// SHA256 writes the digest of |len| bytes from |data| to |out| and returns
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// |out|. There must be at least |SHA256_DIGEST_LENGTH| bytes of space in
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// |out|.
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OPENSSL_EXPORT uint8_t *SHA256(const uint8_t *data, size_t len, uint8_t *out);
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// SHA256_Transform is a low-level function that performs a single, SHA-256
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// block transformation using the state from |sha| and |SHA256_CBLOCK| bytes
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// from |block|.
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OPENSSL_EXPORT void SHA256_Transform(SHA256_CTX *sha, const uint8_t *block);
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struct sha256_state_st {
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uint32_t h[8];
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uint32_t Nl, Nh;
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uint8_t data[SHA256_CBLOCK];
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unsigned num, md_len;
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};
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// SHA-384.
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// SHA384_CBLOCK is the block size of SHA-384.
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#define SHA384_CBLOCK 128
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// SHA384_DIGEST_LENGTH is the length of a SHA-384 digest.
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#define SHA384_DIGEST_LENGTH 48
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// SHA384_Init initialises |sha| and returns 1.
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OPENSSL_EXPORT int SHA384_Init(SHA512_CTX *sha);
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// SHA384_Update adds |len| bytes from |data| to |sha| and returns 1.
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OPENSSL_EXPORT int SHA384_Update(SHA512_CTX *sha, const void *data, size_t len);
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// SHA384_Final adds the final padding to |sha| and writes the resulting digest
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// to |md|, which must have at least |SHA384_DIGEST_LENGTH| bytes of space. It
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// returns one on success and zero on programmer error.
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OPENSSL_EXPORT int SHA384_Final(uint8_t *md, SHA512_CTX *sha);
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// SHA384 writes the digest of |len| bytes from |data| to |out| and returns
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// |out|. There must be at least |SHA384_DIGEST_LENGTH| bytes of space in
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// |out|.
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OPENSSL_EXPORT uint8_t *SHA384(const uint8_t *data, size_t len, uint8_t *out);
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// SHA384_Transform is a low-level function that performs a single, SHA-384
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// block transformation using the state from |sha| and |SHA384_CBLOCK| bytes
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// from |block|.
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OPENSSL_EXPORT void SHA384_Transform(SHA512_CTX *sha, const uint8_t *block);
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// SHA-512.
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// SHA512_CBLOCK is the block size of SHA-512.
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#define SHA512_CBLOCK 128
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// SHA512_DIGEST_LENGTH is the length of a SHA-512 digest.
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#define SHA512_DIGEST_LENGTH 64
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// SHA512_Init initialises |sha| and returns 1.
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OPENSSL_EXPORT int SHA512_Init(SHA512_CTX *sha);
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// SHA512_Update adds |len| bytes from |data| to |sha| and returns 1.
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OPENSSL_EXPORT int SHA512_Update(SHA512_CTX *sha, const void *data, size_t len);
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// SHA512_Final adds the final padding to |sha| and writes the resulting digest
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// to |md|, which must have at least |SHA512_DIGEST_LENGTH| bytes of space. It
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// returns one on success and zero on programmer error.
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OPENSSL_EXPORT int SHA512_Final(uint8_t *md, SHA512_CTX *sha);
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// SHA512 writes the digest of |len| bytes from |data| to |out| and returns
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// |out|. There must be at least |SHA512_DIGEST_LENGTH| bytes of space in
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// |out|.
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OPENSSL_EXPORT uint8_t *SHA512(const uint8_t *data, size_t len, uint8_t *out);
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// SHA512_Transform is a low-level function that performs a single, SHA-512
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// block transformation using the state from |sha| and |SHA512_CBLOCK| bytes
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// from |block|.
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OPENSSL_EXPORT void SHA512_Transform(SHA512_CTX *sha, const uint8_t *block);
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struct sha512_state_st {
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uint64_t h[8];
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uint64_t Nl, Nh;
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union {
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uint64_t d[16];
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uint8_t p[128];
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} u;
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unsigned num, md_len;
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};
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#if defined(__cplusplus)
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} // extern C
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#endif
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#endif // OPENSSL_HEADER_SHA_H
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