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317 lines
5.8 KiB
C
317 lines
5.8 KiB
C
/*
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* internal.c
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* Wrapper for builtin functions
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*
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* Copyright (c) 2001 Marko Kreen
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* All rights reserved.
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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 above 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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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* contrib/pgcrypto/internal-sha2.c
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*/
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#include "postgres.h"
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#include <time.h>
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#include "px.h"
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#include "sha2.h"
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void init_sha224(PX_MD *h);
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void init_sha256(PX_MD *h);
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void init_sha384(PX_MD *h);
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void init_sha512(PX_MD *h);
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/* SHA224 */
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static unsigned
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int_sha224_len(PX_MD *h)
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{
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return SHA224_DIGEST_LENGTH;
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}
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static unsigned
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int_sha224_block_len(PX_MD *h)
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{
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return SHA224_BLOCK_LENGTH;
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}
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static void
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int_sha224_update(PX_MD *h, const uint8 *data, unsigned dlen)
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{
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SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr;
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SHA224_Update(ctx, data, dlen);
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}
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static void
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int_sha224_reset(PX_MD *h)
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{
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SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr;
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SHA224_Init(ctx);
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}
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static void
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int_sha224_finish(PX_MD *h, uint8 *dst)
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{
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SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr;
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SHA224_Final(dst, ctx);
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}
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static void
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int_sha224_free(PX_MD *h)
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{
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SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr;
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memset(ctx, 0, sizeof(*ctx));
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px_free(ctx);
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px_free(h);
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}
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/* SHA256 */
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static unsigned
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int_sha256_len(PX_MD *h)
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{
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return SHA256_DIGEST_LENGTH;
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}
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static unsigned
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int_sha256_block_len(PX_MD *h)
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{
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return SHA256_BLOCK_LENGTH;
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}
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static void
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int_sha256_update(PX_MD *h, const uint8 *data, unsigned dlen)
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{
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SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr;
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SHA256_Update(ctx, data, dlen);
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}
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static void
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int_sha256_reset(PX_MD *h)
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{
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SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr;
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SHA256_Init(ctx);
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}
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static void
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int_sha256_finish(PX_MD *h, uint8 *dst)
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{
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SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr;
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SHA256_Final(dst, ctx);
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}
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static void
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int_sha256_free(PX_MD *h)
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{
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SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr;
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memset(ctx, 0, sizeof(*ctx));
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px_free(ctx);
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px_free(h);
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}
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/* SHA384 */
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static unsigned
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int_sha384_len(PX_MD *h)
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{
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return SHA384_DIGEST_LENGTH;
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}
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static unsigned
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int_sha384_block_len(PX_MD *h)
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{
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return SHA384_BLOCK_LENGTH;
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}
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static void
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int_sha384_update(PX_MD *h, const uint8 *data, unsigned dlen)
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{
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SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr;
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SHA384_Update(ctx, data, dlen);
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}
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static void
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int_sha384_reset(PX_MD *h)
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{
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SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr;
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SHA384_Init(ctx);
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}
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static void
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int_sha384_finish(PX_MD *h, uint8 *dst)
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{
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SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr;
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SHA384_Final(dst, ctx);
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}
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static void
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int_sha384_free(PX_MD *h)
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{
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SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr;
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memset(ctx, 0, sizeof(*ctx));
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px_free(ctx);
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px_free(h);
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}
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/* SHA512 */
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static unsigned
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int_sha512_len(PX_MD *h)
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{
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return SHA512_DIGEST_LENGTH;
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}
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static unsigned
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int_sha512_block_len(PX_MD *h)
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{
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return SHA512_BLOCK_LENGTH;
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}
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static void
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int_sha512_update(PX_MD *h, const uint8 *data, unsigned dlen)
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{
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SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr;
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SHA512_Update(ctx, data, dlen);
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}
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static void
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int_sha512_reset(PX_MD *h)
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{
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SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr;
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SHA512_Init(ctx);
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}
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static void
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int_sha512_finish(PX_MD *h, uint8 *dst)
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{
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SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr;
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SHA512_Final(dst, ctx);
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}
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static void
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int_sha512_free(PX_MD *h)
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{
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SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr;
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memset(ctx, 0, sizeof(*ctx));
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px_free(ctx);
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px_free(h);
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}
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/* init functions */
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void
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init_sha224(PX_MD *md)
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{
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SHA224_CTX *ctx;
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ctx = px_alloc(sizeof(*ctx));
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memset(ctx, 0, sizeof(*ctx));
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md->p.ptr = ctx;
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md->result_size = int_sha224_len;
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md->block_size = int_sha224_block_len;
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md->reset = int_sha224_reset;
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md->update = int_sha224_update;
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md->finish = int_sha224_finish;
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md->free = int_sha224_free;
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md->reset(md);
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}
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void
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init_sha256(PX_MD *md)
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{
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SHA256_CTX *ctx;
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ctx = px_alloc(sizeof(*ctx));
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memset(ctx, 0, sizeof(*ctx));
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md->p.ptr = ctx;
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md->result_size = int_sha256_len;
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md->block_size = int_sha256_block_len;
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md->reset = int_sha256_reset;
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md->update = int_sha256_update;
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md->finish = int_sha256_finish;
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md->free = int_sha256_free;
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md->reset(md);
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}
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void
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init_sha384(PX_MD *md)
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{
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SHA384_CTX *ctx;
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ctx = px_alloc(sizeof(*ctx));
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memset(ctx, 0, sizeof(*ctx));
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md->p.ptr = ctx;
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md->result_size = int_sha384_len;
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md->block_size = int_sha384_block_len;
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md->reset = int_sha384_reset;
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md->update = int_sha384_update;
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md->finish = int_sha384_finish;
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md->free = int_sha384_free;
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md->reset(md);
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}
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void
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init_sha512(PX_MD *md)
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{
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SHA512_CTX *ctx;
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ctx = px_alloc(sizeof(*ctx));
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memset(ctx, 0, sizeof(*ctx));
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md->p.ptr = ctx;
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md->result_size = int_sha512_len;
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md->block_size = int_sha512_block_len;
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md->reset = int_sha512_reset;
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md->update = int_sha512_update;
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md->finish = int_sha512_finish;
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md->free = int_sha512_free;
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md->reset(md);
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}
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