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 * $Original-Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
43 # define SHA2_USE_INTTYPES_H
44 # define LITTLE_ENDIAN 1234
45 # define BIG_ENDIAN 4321
46 # define BYTE_ORDER LITTLE_ENDIAN
48 # define SHA2_USE_INTTYPES_H
52 * Import u_intXX_t size_t type definitions from system headers. You
53 * may need to change this, or define these things yourself in this
56 #include <sys/types.h>
58 #ifdef SHA2_USE_INTTYPES_H
62 #endif /* SHA2_USE_INTTYPES_H */
65 /*** SHA-256/384/512 Various Length Definitions ***********************/
66 #define SHA256_BLOCK_LENGTH 64
67 #define SHA256_DIGEST_LENGTH 32
68 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
69 #define SHA384_BLOCK_LENGTH 128
70 #define SHA384_DIGEST_LENGTH 48
71 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
72 #define SHA512_BLOCK_LENGTH 128
73 #define SHA512_DIGEST_LENGTH 64
74 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
77 /*** SHA-256/384/512 Context Structures *******************************/
78 /* NOTE: If your architecture does not define either u_intXX_t types or
79 * uintXX_t (from inttypes.h), you may need to define things by hand
83 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */
84 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */
85 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */
88 * Most BSD systems already define u_intXX_t types, as does Linux.
89 * Some systems, however, like Compaq's Tru64 Unix instead can use
90 * uintXX_t types defined by very recent ANSI C standards and included
93 * #include <inttypes.h>
95 * If you choose to use <inttypes.h> then please define:
97 * #define SHA2_USE_INTTYPES_H
99 * Or on the command line during compile:
101 * cc -DSHA2_USE_INTTYPES_H ...
103 #ifdef SHA2_USE_INTTYPES_H
105 typedef struct _SHA256_CTX {
108 uint8_t buffer[SHA256_BLOCK_LENGTH];
110 typedef struct _SHA512_CTX {
112 uint64_t bitcount[2];
113 uint8_t buffer[SHA512_BLOCK_LENGTH];
116 #else /* SHA2_USE_INTTYPES_H */
118 typedef struct _SHA256_CTX {
121 u_int8_t buffer[SHA256_BLOCK_LENGTH];
123 typedef struct _SHA512_CTX {
125 u_int64_t bitcount[2];
126 u_int8_t buffer[SHA512_BLOCK_LENGTH];
129 #endif /* SHA2_USE_INTTYPES_H */
131 typedef SHA512_CTX SHA384_CTX;
134 /*** SHA-256/384/512 Function Prototypes ******************************/
136 #ifdef SHA2_USE_INTTYPES_H
138 void SHA256_Init(SHA256_CTX *);
139 void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
140 void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
141 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
142 char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
144 void SHA384_Init(SHA384_CTX*);
145 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
146 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
147 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
148 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
150 void SHA512_Init(SHA512_CTX*);
151 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
152 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
153 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
154 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
156 #else /* SHA2_USE_INTTYPES_H */
158 void SHA256_Init(SHA256_CTX *);
159 void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t);
160 void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
161 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
162 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
164 void SHA384_Init(SHA384_CTX*);
165 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
166 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
167 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
168 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
170 void SHA512_Init(SHA512_CTX*);
171 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
172 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
173 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
174 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
176 void sha256(unsigned char *out, const unsigned char *in, int n);
178 #endif /* SHA2_USE_INTTYPES_H */
183 void SHA256_Update();
189 void SHA384_Update();
195 void SHA512_Update();
206 #endif /* __cplusplus */
208 #endif /* __SHA2_H__ */