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86 lines
2.2 KiB
86 lines
2.2 KiB
/* $OpenBSD: md-sha256.c,v 1.5 2006/08/03 03:34:42 deraadt Exp $ */ |
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/* |
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* Copyright (c) 2005 Damien Miller <djm@openbsd.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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/* EVP wrapper for SHA256 */ |
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#include "includes.h" |
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#include <sys/types.h> |
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#include <openssl/opensslv.h> |
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#if !defined(HAVE_EVP_SHA256) && (OPENSSL_VERSION_NUMBER >= 0x00907000L) |
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#include <string.h> |
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#include <openssl/evp.h> |
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#ifdef HAVE_SHA256_UPDATE |
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# ifdef HAVE_SHA2_H |
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# include <sha2.h> |
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# elif defined(HAVE_CRYPTO_SHA2_H) |
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# include <crypto/sha2.h> |
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# endif |
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#endif |
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const EVP_MD *evp_ssh_sha256(void); |
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static int |
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ssh_sha256_init(EVP_MD_CTX *ctxt) |
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{ |
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SHA256_Init(ctxt->md_data); |
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return (1); |
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} |
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static int |
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ssh_sha256_update(EVP_MD_CTX *ctxt, const void *data, unsigned long len) |
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{ |
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SHA256_Update(ctxt->md_data, data, len); |
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return (1); |
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} |
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static int |
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ssh_sha256_final(EVP_MD_CTX *ctxt, unsigned char *digest) |
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{ |
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SHA256_Final(digest, ctxt->md_data); |
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return (1); |
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} |
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static int |
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ssh_sha256_cleanup(EVP_MD_CTX *ctxt) |
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{ |
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memset(ctxt->md_data, 0, sizeof(SHA256_CTX)); |
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return (1); |
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} |
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const EVP_MD * |
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evp_ssh_sha256(void) |
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{ |
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static EVP_MD ssh_sha256; |
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memset(&ssh_sha256, 0, sizeof(ssh_sha256)); |
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ssh_sha256.type = NID_undef; |
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ssh_sha256.md_size = SHA256_DIGEST_LENGTH; |
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ssh_sha256.init = ssh_sha256_init; |
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ssh_sha256.update = ssh_sha256_update; |
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ssh_sha256.final = ssh_sha256_final; |
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ssh_sha256.cleanup = ssh_sha256_cleanup; |
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ssh_sha256.block_size = SHA256_BLOCK_LENGTH; |
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ssh_sha256.ctx_size = sizeof(SHA256_CTX); |
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return (&ssh_sha256); |
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} |
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#endif /* !defined(HAVE_EVP_SHA256) && (OPENSSL_VERSION_NUMBER >= 0x00907000L) */ |
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