ldns documentation

- Main Page
- Related Pages
- Data Structures
- Files

- File List
- Globals

sha2.h
Go to the documentation of this file.
1 /*
2 * FILE: sha2.h
3 * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/
4 *
5 * Copyright (c) 2000-2001, Aaron D. Gifford
6 * All rights reserved.
7 *
8 * Modified by Jelte Jansen to fit in ldns, and not clash with any
9 * system-defined SHA code.
10 * Changes:
11 * - Renamed (external) functions and constants to fit ldns style
12 * - Removed uintXX vs. u_intXX smartness, since ldns needs uintXX
13 * anyway
14 * - BYTE ORDER check replaced by simple ifdef as defined or not by
15 * configure.ac
16 * - Removed _End and _Data functions
17 * - Added ldns_shaX(data, len, digest) functions
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * 3. Neither the name of the copyright holder nor the names of contributors
28 * may be used to endorse or promote products derived from this software
29 * without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * SUCH DAMAGE.
42 *
43 * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
44 */
45
46 #ifndef __LDNS_SHA2_H__
47 #define __LDNS_SHA2_H__
48
49 #ifdef __cplusplus
50 extern "C" {
51 #endif
52
53
54 /*
55 * Import u_intXX_t size_t type definitions from system headers. You
56 * may need to change this, or define these things yourself in this
57 * file.
58 */
59 #include <sys/types.h>
60
61 #if LDNS_BUILD_CONFIG_HAVE_INTTYPES_H
62
63 #include <inttypes.h>
64
65 #endif /* LDNS_BUILD_CONFIG_HAVE_INTTYPES_H */
66
67
68 /*** SHA-256/384/512 Various Length Definitions ***********************/
69 #define LDNS_SHA256_BLOCK_LENGTH 64
70 #define LDNS_SHA256_DIGEST_LENGTH 32
71 #define LDNS_SHA256_DIGEST_STRING_LENGTH (LDNS_SHA256_DIGEST_LENGTH * 2 + 1)
72 #define LDNS_SHA384_BLOCK_LENGTH 128
73 #define LDNS_SHA384_DIGEST_LENGTH 48
74 #define LDNS_SHA384_DIGEST_STRING_LENGTH (LDNS_SHA384_DIGEST_LENGTH * 2 + 1)
75 #define LDNS_SHA512_BLOCK_LENGTH 128
76 #define LDNS_SHA512_DIGEST_LENGTH 64
77 #define LDNS_SHA512_DIGEST_STRING_LENGTH (LDNS_SHA512_DIGEST_LENGTH * 2 + 1)
78
79
80 /*** SHA-256/384/512 Context Structures *******************************/
81
82 typedef struct _ldns_sha256_CTX {
83 uint32_t state[8];
84 uint64_t bitcount;
85 uint8_t buffer[LDNS_SHA256_BLOCK_LENGTH];
86 } ldns_sha256_CTX;
87 typedef struct _ldns_sha512_CTX {
88 uint64_t state[8];
89 uint64_t bitcount[2];
90 uint8_t buffer[LDNS_SHA512_BLOCK_LENGTH];
91 } ldns_sha512_CTX;
92
93 typedef ldns_sha512_CTX ldns_sha384_CTX;
94
95
96 /*** SHA-256/384/512 Function Prototypes ******************************/
97 void ldns_sha256_init(ldns_sha256_CTX *);
98 void ldns_sha256_update(ldns_sha256_CTX*, const uint8_t*, size_t);
99 void ldns_sha256_final(uint8_t[LDNS_SHA256_DIGEST_LENGTH], ldns_sha256_CTX*);
100
101 void ldns_sha384_init(ldns_sha384_CTX*);
102 void ldns_sha384_update(ldns_sha384_CTX*, const uint8_t*, size_t);
103 void ldns_sha384_final(uint8_t[LDNS_SHA384_DIGEST_LENGTH], ldns_sha384_CTX*);
104
105 void ldns_sha512_init(ldns_sha512_CTX*);
106 void ldns_sha512_update(ldns_sha512_CTX*, const uint8_t*, size_t);
107 void ldns_sha512_final(uint8_t[LDNS_SHA512_DIGEST_LENGTH], ldns_sha512_CTX*);
108
119 unsigned char *ldns_sha256(unsigned char *data, unsigned int data_len, unsigned char *digest);
120
131 unsigned char *ldns_sha384(unsigned char *data, unsigned int data_len, unsigned char *digest);
132
143 unsigned char *ldns_sha512(unsigned char *data, unsigned int data_len, unsigned char *digest);
144
145 #ifdef __cplusplus
146 }
147 #endif /* __cplusplus */
148
149 #endif /* __LDNS_SHA2_H__ */
ldns_sha512_CTX
struct _ldns_sha512_CTX ldns_sha512_CTX
LDNS_SHA512_DIGEST_LENGTH
#define LDNS_SHA512_DIGEST_LENGTH
Definition: sha2.h:76
_ldns_sha256_CTX::buffer
uint8_t buffer[64]
Definition: sha2.h:85
ldns_sha384_CTX
ldns_sha512_CTX ldns_sha384_CTX
Definition: sha2.h:93
ldns_sha256_final
void ldns_sha256_final(uint8_t[32], ldns_sha256_CTX *)
LDNS_SHA384_DIGEST_LENGTH
#define LDNS_SHA384_DIGEST_LENGTH
Definition: sha2.h:73
LDNS_SHA256_DIGEST_LENGTH
#define LDNS_SHA256_DIGEST_LENGTH
Definition: sha2.h:70
ldns_sha384_final
void ldns_sha384_final(uint8_t[48], ldns_sha384_CTX *)
ldns_sha384
unsigned char * ldns_sha384(unsigned char *data, unsigned int data_len, unsigned char *digest)
Convenience function to digest a fixed block of data at once.
Definition: sha2.c:984
ldns_sha256_CTX
struct _ldns_sha256_CTX ldns_sha256_CTX
ldns_sha256_init
void ldns_sha256_init(ldns_sha256_CTX *)
Definition: sha2.c:315
ldns_sha512_update
void ldns_sha512_update(ldns_sha512_CTX *, const uint8_t *, size_t)
Definition: sha2.c:810
ldns_sha384_update
void ldns_sha384_update(ldns_sha384_CTX *, const uint8_t *, size_t)
Definition: sha2.c:950
_ldns_sha512_CTX
Definition: sha2.h:87
ldns_sha512_init
void ldns_sha512_init(ldns_sha512_CTX *)
Definition: sha2.c:630
ldns_sha256_update
void ldns_sha256_update(ldns_sha256_CTX *, const uint8_t *, size_t)
Definition: sha2.c:501
ldns_sha384_init
void ldns_sha384_init(ldns_sha384_CTX *)
Definition: sha2.c:941
LDNS_SHA256_BLOCK_LENGTH
#define LDNS_SHA256_BLOCK_LENGTH
Definition: sha2.h:69
ldns_sha512_final
void ldns_sha512_final(uint8_t[64], ldns_sha512_CTX *)
_ldns_sha256_CTX::bitcount
uint64_t bitcount
Definition: sha2.h:84
ldns_sha512
unsigned char * ldns_sha512(unsigned char *data, unsigned int data_len, unsigned char *digest)
Convenience function to digest a fixed block of data at once.
Definition: sha2.c:931
_ldns_sha256_CTX
Definition: sha2.h:82
ldns_sha256
unsigned char * ldns_sha256(unsigned char *data, unsigned int data_len, unsigned char *digest)
Convenience function to digest a fixed block of data at once.
Definition: sha2.c:620
LDNS_SHA512_BLOCK_LENGTH
#define LDNS_SHA512_BLOCK_LENGTH
Definition: sha2.h:75
_ldns_sha256_CTX::state
uint32_t state[8]
Definition: sha2.h:83