src/include/common/sha2.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * sha2.h
   4  *        Generic headers for SHA224, 256, 384 AND 512 functions of PostgreSQL.
   5  *
   6  * Portions Copyright (c) 2016-2019, PostgreSQL Global Development Group
   7  *
   8  * IDENTIFICATION
   9  *                src/include/common/sha2.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13
  14 /* $OpenBSD: sha2.h,v 1.2 2004/04/28 23:11:57 millert Exp $ */
  15
  16 /*
  17  * FILE:        sha2.h
  18  * AUTHOR:      Aaron D. Gifford <me@aarongifford.com>
  19  *
  20  * Copyright (c) 2000-2001, Aaron D. Gifford
  21  * All rights reserved.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the above copyright
  27  *        notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *        notice, this list of conditions and the following disclaimer in the
  30  *        documentation and/or other materials provided with the distribution.
  31  * 3. Neither the name of the copyright holder nor the names of contributors
  32  *        may be used to endorse or promote products derived from this software
  33  *        without specific prior written permission.
  34  *
  35  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
  36  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  38  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
  39  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  40  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  41  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  42  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  43  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  44  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  45  * SUCH DAMAGE.
  46  *
  47  * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
  48  */
  49
  50 #ifndef _PG_SHA2_H_
  51 #define _PG_SHA2_H_
  52
  53 #ifdef USE_OPENSSL
  54 #include <openssl/sha.h>
  55 #endif
  56
  57 /*** SHA224/256/384/512 Various Length Definitions ***********************/
  58 #define PG_SHA224_BLOCK_LENGTH                  64
  59 #define PG_SHA224_DIGEST_LENGTH                 28
  60 #define PG_SHA224_DIGEST_STRING_LENGTH  (PG_SHA224_DIGEST_LENGTH * 2 + 1)
  61 #define PG_SHA256_BLOCK_LENGTH                  64
  62 #define PG_SHA256_DIGEST_LENGTH                 32
  63 #define PG_SHA256_DIGEST_STRING_LENGTH  (PG_SHA256_DIGEST_LENGTH * 2 + 1)
  64 #define PG_SHA384_BLOCK_LENGTH                  128
  65 #define PG_SHA384_DIGEST_LENGTH                 48
  66 #define PG_SHA384_DIGEST_STRING_LENGTH  (PG_SHA384_DIGEST_LENGTH * 2 + 1)
  67 #define PG_SHA512_BLOCK_LENGTH                  128
  68 #define PG_SHA512_DIGEST_LENGTH                 64
  69 #define PG_SHA512_DIGEST_STRING_LENGTH  (PG_SHA512_DIGEST_LENGTH * 2 + 1)
  70
  71 /* Context Structures for SHA-1/224/256/384/512 */
  72 #ifdef USE_OPENSSL
  73 typedef SHA256_CTX pg_sha256_ctx;
  74 typedef SHA512_CTX pg_sha512_ctx;
  75 typedef SHA256_CTX pg_sha224_ctx;
  76 typedef SHA512_CTX pg_sha384_ctx;
  77 #else
  78 typedef struct pg_sha256_ctx
  79 {
  80         uint32          state[8];
  81         uint64          bitcount;
  82         uint8           buffer[PG_SHA256_BLOCK_LENGTH];
  83 } pg_sha256_ctx;
  84 typedef struct pg_sha512_ctx
  85 {
  86         uint64          state[8];
  87         uint64          bitcount[2];
  88         uint8           buffer[PG_SHA512_BLOCK_LENGTH];
  89 } pg_sha512_ctx;
  90 typedef struct pg_sha256_ctx pg_sha224_ctx;
  91 typedef struct pg_sha512_ctx pg_sha384_ctx;
  92 #endif                                                  /* USE_OPENSSL */
  93
  94 /* Interface routines for SHA224/256/384/512 */
  95 extern void pg_sha224_init(pg_sha224_ctx *ctx);
  96 extern void pg_sha224_update(pg_sha224_ctx *ctx, const uint8 *input0,
  97                                                          size_t len);
  98 extern void pg_sha224_final(pg_sha224_ctx *ctx, uint8 *dest);
  99
 100 extern void pg_sha256_init(pg_sha256_ctx *ctx);
 101 extern void pg_sha256_update(pg_sha256_ctx *ctx, const uint8 *input0,
 102                                                          size_t len);
 103 extern void pg_sha256_final(pg_sha256_ctx *ctx, uint8 *dest);
 104
 105 extern void pg_sha384_init(pg_sha384_ctx *ctx);
 106 extern void pg_sha384_update(pg_sha384_ctx *ctx,
 107                                                          const uint8 *, size_t len);
 108 extern void pg_sha384_final(pg_sha384_ctx *ctx, uint8 *dest);
 109
 110 extern void pg_sha512_init(pg_sha512_ctx *ctx);
 111 extern void pg_sha512_update(pg_sha512_ctx *ctx, const uint8 *input0,
 112                                                          size_t len);
 113 extern void pg_sha512_final(pg_sha512_ctx *ctx, uint8 *dest);
 114
 115 #endif                                                  /* _PG_SHA2_H_ */