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Diffstat (limited to 'openssl/crypto/hmac/hmac.h')
| -rw-r--r-- | openssl/crypto/hmac/hmac.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/openssl/crypto/hmac/hmac.h b/openssl/crypto/hmac/hmac.h new file mode 100644 index 00000000..1be00221 --- /dev/null +++ b/openssl/crypto/hmac/hmac.h @@ -0,0 +1,110 @@ +/* crypto/hmac/hmac.h */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +#ifndef HEADER_HMAC_H +#define HEADER_HMAC_H + +#include <openssl/opensslconf.h> + +#ifdef OPENSSL_NO_HMAC +#error HMAC is disabled. +#endif + +#include <openssl/evp.h> + +#define HMAC_MAX_MD_CBLOCK 128 /* largest known is SHA512 */ + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct hmac_ctx_st + { + const EVP_MD *md; + EVP_MD_CTX md_ctx; + EVP_MD_CTX i_ctx; + EVP_MD_CTX o_ctx; + unsigned int key_length; + unsigned char key[HMAC_MAX_MD_CBLOCK]; + } HMAC_CTX; + +#define HMAC_size(e) (EVP_MD_size((e)->md)) + + +void HMAC_CTX_init(HMAC_CTX *ctx); +void HMAC_CTX_cleanup(HMAC_CTX *ctx); + +#define HMAC_cleanup(ctx) HMAC_CTX_cleanup(ctx) /* deprecated */ + +int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, + const EVP_MD *md); /* deprecated */ +int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, + const EVP_MD *md, ENGINE *impl); +int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len); +int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len); +unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, + const unsigned char *d, size_t n, unsigned char *md, + unsigned int *md_len); +int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx); + +void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags); + +#ifdef __cplusplus +} +#endif + +#endif |