| /* |
| * internal.c |
| * Wrapper for builtin functions |
| * |
| * Copyright (c) 2001 Marko Kreen |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * contrib/pgcrypto/internal-sha2.c |
| */ |
| |
| #include "postgres.h" |
| |
| #include <time.h> |
| |
| #include "px.h" |
| #include "sha2.h" |
| |
| void init_sha224(PX_MD *h); |
| void init_sha256(PX_MD *h); |
| void init_sha384(PX_MD *h); |
| void init_sha512(PX_MD *h); |
| |
| /* SHA224 */ |
| |
| static unsigned |
| int_sha224_len(PX_MD *h) |
| { |
| return SHA224_DIGEST_LENGTH; |
| } |
| |
| static unsigned |
| int_sha224_block_len(PX_MD *h) |
| { |
| return SHA224_BLOCK_LENGTH; |
| } |
| |
| static void |
| int_sha224_update(PX_MD *h, const uint8 *data, unsigned dlen) |
| { |
| SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr; |
| |
| SHA224_Update(ctx, data, dlen); |
| } |
| |
| static void |
| int_sha224_reset(PX_MD *h) |
| { |
| SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr; |
| |
| SHA224_Init(ctx); |
| } |
| |
| static void |
| int_sha224_finish(PX_MD *h, uint8 *dst) |
| { |
| SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr; |
| |
| SHA224_Final(dst, ctx); |
| } |
| |
| static void |
| int_sha224_free(PX_MD *h) |
| { |
| SHA224_CTX *ctx = (SHA224_CTX *) h->p.ptr; |
| |
| memset(ctx, 0, sizeof(*ctx)); |
| px_free(ctx); |
| px_free(h); |
| } |
| |
| /* SHA256 */ |
| |
| static unsigned |
| int_sha256_len(PX_MD *h) |
| { |
| return SHA256_DIGEST_LENGTH; |
| } |
| |
| static unsigned |
| int_sha256_block_len(PX_MD *h) |
| { |
| return SHA256_BLOCK_LENGTH; |
| } |
| |
| static void |
| int_sha256_update(PX_MD *h, const uint8 *data, unsigned dlen) |
| { |
| SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr; |
| |
| SHA256_Update(ctx, data, dlen); |
| } |
| |
| static void |
| int_sha256_reset(PX_MD *h) |
| { |
| SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr; |
| |
| SHA256_Init(ctx); |
| } |
| |
| static void |
| int_sha256_finish(PX_MD *h, uint8 *dst) |
| { |
| SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr; |
| |
| SHA256_Final(dst, ctx); |
| } |
| |
| static void |
| int_sha256_free(PX_MD *h) |
| { |
| SHA256_CTX *ctx = (SHA256_CTX *) h->p.ptr; |
| |
| memset(ctx, 0, sizeof(*ctx)); |
| px_free(ctx); |
| px_free(h); |
| } |
| |
| /* SHA384 */ |
| |
| static unsigned |
| int_sha384_len(PX_MD *h) |
| { |
| return SHA384_DIGEST_LENGTH; |
| } |
| |
| static unsigned |
| int_sha384_block_len(PX_MD *h) |
| { |
| return SHA384_BLOCK_LENGTH; |
| } |
| |
| static void |
| int_sha384_update(PX_MD *h, const uint8 *data, unsigned dlen) |
| { |
| SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr; |
| |
| SHA384_Update(ctx, data, dlen); |
| } |
| |
| static void |
| int_sha384_reset(PX_MD *h) |
| { |
| SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr; |
| |
| SHA384_Init(ctx); |
| } |
| |
| static void |
| int_sha384_finish(PX_MD *h, uint8 *dst) |
| { |
| SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr; |
| |
| SHA384_Final(dst, ctx); |
| } |
| |
| static void |
| int_sha384_free(PX_MD *h) |
| { |
| SHA384_CTX *ctx = (SHA384_CTX *) h->p.ptr; |
| |
| memset(ctx, 0, sizeof(*ctx)); |
| px_free(ctx); |
| px_free(h); |
| } |
| |
| /* SHA512 */ |
| |
| static unsigned |
| int_sha512_len(PX_MD *h) |
| { |
| return SHA512_DIGEST_LENGTH; |
| } |
| |
| static unsigned |
| int_sha512_block_len(PX_MD *h) |
| { |
| return SHA512_BLOCK_LENGTH; |
| } |
| |
| static void |
| int_sha512_update(PX_MD *h, const uint8 *data, unsigned dlen) |
| { |
| SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr; |
| |
| SHA512_Update(ctx, data, dlen); |
| } |
| |
| static void |
| int_sha512_reset(PX_MD *h) |
| { |
| SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr; |
| |
| SHA512_Init(ctx); |
| } |
| |
| static void |
| int_sha512_finish(PX_MD *h, uint8 *dst) |
| { |
| SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr; |
| |
| SHA512_Final(dst, ctx); |
| } |
| |
| static void |
| int_sha512_free(PX_MD *h) |
| { |
| SHA512_CTX *ctx = (SHA512_CTX *) h->p.ptr; |
| |
| memset(ctx, 0, sizeof(*ctx)); |
| px_free(ctx); |
| px_free(h); |
| } |
| |
| /* init functions */ |
| |
| void |
| init_sha224(PX_MD *md) |
| { |
| SHA224_CTX *ctx; |
| |
| ctx = px_alloc(sizeof(*ctx)); |
| memset(ctx, 0, sizeof(*ctx)); |
| |
| md->p.ptr = ctx; |
| |
| md->result_size = int_sha224_len; |
| md->block_size = int_sha224_block_len; |
| md->reset = int_sha224_reset; |
| md->update = int_sha224_update; |
| md->finish = int_sha224_finish; |
| md->free = int_sha224_free; |
| |
| md->reset(md); |
| } |
| |
| void |
| init_sha256(PX_MD *md) |
| { |
| SHA256_CTX *ctx; |
| |
| ctx = px_alloc(sizeof(*ctx)); |
| memset(ctx, 0, sizeof(*ctx)); |
| |
| md->p.ptr = ctx; |
| |
| md->result_size = int_sha256_len; |
| md->block_size = int_sha256_block_len; |
| md->reset = int_sha256_reset; |
| md->update = int_sha256_update; |
| md->finish = int_sha256_finish; |
| md->free = int_sha256_free; |
| |
| md->reset(md); |
| } |
| |
| void |
| init_sha384(PX_MD *md) |
| { |
| SHA384_CTX *ctx; |
| |
| ctx = px_alloc(sizeof(*ctx)); |
| memset(ctx, 0, sizeof(*ctx)); |
| |
| md->p.ptr = ctx; |
| |
| md->result_size = int_sha384_len; |
| md->block_size = int_sha384_block_len; |
| md->reset = int_sha384_reset; |
| md->update = int_sha384_update; |
| md->finish = int_sha384_finish; |
| md->free = int_sha384_free; |
| |
| md->reset(md); |
| } |
| |
| void |
| init_sha512(PX_MD *md) |
| { |
| SHA512_CTX *ctx; |
| |
| ctx = px_alloc(sizeof(*ctx)); |
| memset(ctx, 0, sizeof(*ctx)); |
| |
| md->p.ptr = ctx; |
| |
| md->result_size = int_sha512_len; |
| md->block_size = int_sha512_block_len; |
| md->reset = int_sha512_reset; |
| md->update = int_sha512_update; |
| md->finish = int_sha512_finish; |
| md->free = int_sha512_free; |
| |
| md->reset(md); |
| } |