2 /* $KAME: sha2.h,v 1.5 2007/06/14 12:09:41 itojun Exp $ */
9 * Written by Aaron D. Gifford <me@aarongifford.com>
11 * Copyright 2000 Aaron D. Gifford. All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the copyright holder nor the names of contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 /*** SHA-256/384/512 Various Length Definitions ***********************/
48 #define SHA256_BLOCK_LENGTH 64
49 #define SHA256_DIGEST_LENGTH 32
50 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
51 #define SHA384_BLOCK_LENGTH 128
52 #define SHA384_DIGEST_LENGTH 48
53 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
54 #define SHA512_BLOCK_LENGTH 128
55 #define SHA512_DIGEST_LENGTH 64
56 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
59 /*** SHA-384/512 Context Structures *******************************/
60 typedef struct _SHA512_CTX {
63 uint8_t buffer[SHA512_BLOCK_LENGTH];
66 typedef SHA512_CTX SHA384_CTX;
69 /*** SHA-384/512 Function Prototypes ******************************/
71 void SHA384_Init(SHA384_CTX*);
72 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
73 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
74 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
75 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
77 void SHA512_Init(SHA512_CTX*);
78 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
79 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
80 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
81 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
85 #endif /* __cplusplus */
89 #endif /* __SHA2_H__ */