4 * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/
6 * Copyright (c) 2000-2001, Aaron D. Gifford
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the copyright holder nor the names of contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
45 * Import u_intXX_t size_t type definitions from system headers. You
46 * may need to change this, or define these things yourself in this
49 #include <sys/types.h>
51 #ifdef SHA2_USE_INTTYPES_H
55 #endif /* SHA2_USE_INTTYPES_H */
58 /*** SHA-256/384/512 Various Length Definitions ***********************/
59 #define SHA256_BLOCK_LENGTH 64
60 #define SHA256_DIGEST_LENGTH 32
61 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
62 #define SHA384_BLOCK_LENGTH 128
63 #define SHA384_DIGEST_LENGTH 48
64 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
65 #define SHA512_BLOCK_LENGTH 128
66 #define SHA512_DIGEST_LENGTH 64
67 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
70 /*** SHA-256/384/512 Context Structures *******************************/
71 /* NOTE: If your architecture does not define either u_intXX_t types or
72 * uintXX_t (from inttypes.h), you may need to define things by hand
76 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */
77 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */
78 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */
81 * Most BSD systems already define u_intXX_t types, as does Linux.
82 * Some systems, however, like Compaq's Tru64 Unix instead can use
83 * uintXX_t types defined by very recent ANSI C standards and included
86 * #include <inttypes.h>
88 * If you choose to use <inttypes.h> then please define:
90 * #define SHA2_USE_INTTYPES_H
92 * Or on the command line during compile:
94 * cc -DSHA2_USE_INTTYPES_H ...
96 #ifdef SHA2_USE_INTTYPES_H
98 typedef struct _SHA256_CTX {
101 uint8_t buffer[SHA256_BLOCK_LENGTH];
103 typedef struct _SHA512_CTX {
105 uint64_t bitcount[2];
106 uint8_t buffer[SHA512_BLOCK_LENGTH];
109 #else /* SHA2_USE_INTTYPES_H */
111 typedef struct _SHA256_CTX {
114 u_int8_t buffer[SHA256_BLOCK_LENGTH];
116 typedef struct _SHA512_CTX {
118 u_int64_t bitcount[2];
119 u_int8_t buffer[SHA512_BLOCK_LENGTH];
122 #endif /* SHA2_USE_INTTYPES_H */
124 typedef SHA512_CTX SHA384_CTX;
127 /*** SHA-256/384/512 Function Prototypes ******************************/
129 #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]);
137 void SHA384_Init(SHA384_CTX*);
138 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
139 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
140 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
141 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
143 void SHA512_Init(SHA512_CTX*);
144 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
145 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
146 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
147 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
149 #else /* SHA2_USE_INTTYPES_H */
151 void SHA256_Init(SHA256_CTX *);
152 void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t);
153 void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
154 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
155 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
157 void SHA384_Init(SHA384_CTX*);
158 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
159 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
160 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
161 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
163 void SHA512_Init(SHA512_CTX*);
164 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
165 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
166 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
167 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
169 #endif /* SHA2_USE_INTTYPES_H */
174 void SHA256_Update();
180 void SHA384_Update();
186 void SHA512_Update();
195 #endif /* __cplusplus */
197 #endif /* __SHA2_H__ */