3 * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/
5 * Copyright (c) 2000-2001, Aaron D. Gifford
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the copyright holder nor the names of contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
44 * Import u_intXX_t size_t type definitions from system headers. You
45 * may need to change this, or define these things yourself in this
48 #include <sys/types.h>
50 #ifdef SHA2_USE_INTTYPES_H
54 #endif /* SHA2_USE_INTTYPES_H */
57 /*** SHA-256/384/512 Various Length Definitions ***********************/
58 #define SHA256_BLOCK_LENGTH 64
59 #define SHA256_DIGEST_LENGTH 32
60 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
61 #define SHA384_BLOCK_LENGTH 128
62 #define SHA384_DIGEST_LENGTH 48
63 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
64 #define SHA512_BLOCK_LENGTH 128
65 #define SHA512_DIGEST_LENGTH 64
66 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
69 /*** SHA-256/384/512 Context Structures *******************************/
70 /* NOTE: If your architecture does not define either u_intXX_t types or
71 * uintXX_t (from inttypes.h), you may need to define things by hand
75 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */
76 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */
77 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */
80 * Most BSD systems already define u_intXX_t types, as does Linux.
81 * Some systems, however, like Compaq's Tru64 Unix instead can use
82 * uintXX_t types defined by very recent ANSI C standards and included
85 * #include <inttypes.h>
87 * If you choose to use <inttypes.h> then please define:
89 * #define SHA2_USE_INTTYPES_H
91 * Or on the command line during compile:
93 * cc -DSHA2_USE_INTTYPES_H ...
95 #ifdef SHA2_USE_INTTYPES_H
97 typedef struct _SHA256_CTX {
100 uint8_t buffer[SHA256_BLOCK_LENGTH];
102 typedef struct _SHA512_CTX {
104 uint64_t bitcount[2];
105 uint8_t buffer[SHA512_BLOCK_LENGTH];
108 #else /* SHA2_USE_INTTYPES_H */
110 typedef struct _SHA256_CTX {
113 u_int8_t buffer[SHA256_BLOCK_LENGTH];
115 typedef struct _SHA512_CTX {
117 u_int64_t bitcount[2];
118 u_int8_t buffer[SHA512_BLOCK_LENGTH];
121 #endif /* SHA2_USE_INTTYPES_H */
123 typedef SHA512_CTX SHA384_CTX;
126 /*** SHA-256/384/512 Function Prototypes ******************************/
128 #ifdef SHA2_USE_INTTYPES_H
131 void SHA256_Init(SHA256_CTX *);
132 void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
133 void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
134 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
135 char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
139 void SHA384_Init(SHA384_CTX*);
140 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
141 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
142 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
143 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
147 void SHA512_Init(SHA512_CTX*);
148 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
149 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
150 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
151 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
154 #else /* SHA2_USE_INTTYPES_H */
157 void SHA256_Init(SHA256_CTX *);
158 void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t);
159 void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
160 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
161 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
165 void SHA384_Init(SHA384_CTX*);
166 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
167 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
168 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
169 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
173 void SHA512_Init(SHA512_CTX*);
174 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
175 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
176 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
177 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
180 #endif /* SHA2_USE_INTTYPES_H */
186 void SHA256_Update();
194 void SHA384_Update();
202 void SHA512_Update();
212 #endif /* __cplusplus */
214 #endif /* __SHA2_H__ */