PostgreSQL Source Code: contrib/pgcrypto/px-crypt.h Source File

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px-crypt.h
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1/*
2 * px-crypt.h
3 * Header file for px_crypt().
4 *
5 * Copyright (c) 2001 Marko Kreen
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * contrib/pgcrypto/px-crypt.h
30 */
31
32#ifndef _PX_CRYPT_H
33#define _PX_CRYPT_H
34
35/* max room for result */
36 #define PX_MAX_CRYPT 128
37
38/* max salt returned by gen_salt() */
39 #define PX_MAX_SALT_LEN 128
40
41/* default rounds for xdes salt */
42/* NetBSD bin/passwd/local_passwd.c has (29 * 25)*/
43 #define PX_XDES_ROUNDS (29 * 25)
44
45/* default for blowfish salt */
46 #define PX_BF_ROUNDS 6
47
48/* Maximum salt string length of shacrypt. */
49 #define PX_SHACRYPT_SALT_MAX_LEN 16
50
51/* SHA buffer length */
52 #define PX_SHACRYPT_DIGEST_MAX_LEN 64
53
54/* calculated buffer size of a buffer to store a shacrypt salt string */
55 #define PX_SHACRYPT_SALT_BUF_LEN (3 + 7 + 10 + PX_SHACRYPT_SALT_MAX_LEN + 1)
56
57/*
58 * calculated buffer size of a buffer to store complete result of a shacrypt
59 * digest including salt
60 */
61 #define PX_SHACRYPT_BUF_LEN (PX_SHACRYPT_SALT_BUF_LEN + 86 + 1)
62
63/* Default number of rounds of shacrypt if not explicitly specified. */
64 #define PX_SHACRYPT_ROUNDS_DEFAULT 5000
65
66/* Minimum number of rounds of shacrypt. */
67 #define PX_SHACRYPT_ROUNDS_MIN 1000
68
69/* Maximum number of rounds of shacrypt. */
70 #define PX_SHACRYPT_ROUNDS_MAX 999999999
71
72/*
73 * main interface
74 */
75char *px_crypt(const char *psw, const char *salt, char *buf, unsigned len);
76int px_gen_salt(const char *salt_type, char *buf, int rounds);
77
78/*
79 * internal functions
80 */
81
82/* crypt-gensalt.c */
83char *_crypt_gensalt_traditional_rn(unsigned long count,
84 const char *input, int size, char *output, int output_size);
85char *_crypt_gensalt_extended_rn(unsigned long count,
86 const char *input, int size, char *output, int output_size);
87char *_crypt_gensalt_md5_rn(unsigned long count,
88 const char *input, int size, char *output, int output_size);
89char *_crypt_gensalt_blowfish_rn(unsigned long count,
90 const char *input, int size, char *output, int output_size);
91char *_crypt_gensalt_sha256_rn(unsigned long count,
92 const char *input, int size, char *output, int output_size);
93char *_crypt_gensalt_sha512_rn(unsigned long count,
94 const char *input, int size, char *output, int output_size);
95
96/* disable 'extended DES crypt' */
97/* #define DISABLE_XDES */
98
99/* crypt-blowfish.c */
100char *_crypt_blowfish_rn(const char *key, const char *setting,
101 char *output, int size);
102
103/* crypt-des.c */
104char *px_crypt_des(const char *key, const char *setting);
105
106/* crypt-md5.c */
107char *px_crypt_md5(const char *pw, const char *salt,
108 char *passwd, unsigned dstlen);
109
110/* crypt-sha.c */
111char *px_crypt_shacrypt(const char *pw, const char *salt, char *passwd, unsigned dstlen);
112
113#endif /* _PX_CRYPT_H */
FILE * input
FILE * output
const void size_t len
static char * buf
Definition: pg_test_fsync.c:72
char * _crypt_blowfish_rn(const char *key, const char *setting, char *output, int size)
char * _crypt_gensalt_traditional_rn(unsigned long count, const char *input, int size, char *output, int output_size)
Definition: crypt-gensalt.c:25
char * _crypt_gensalt_sha256_rn(unsigned long count, const char *input, int size, char *output, int output_size)
Definition: crypt-gensalt.c:258
char * _crypt_gensalt_md5_rn(unsigned long count, const char *input, int size, char *output, int output_size)
Definition: crypt-gensalt.c:79
char * px_crypt_shacrypt(const char *pw, const char *salt, char *passwd, unsigned dstlen)
Definition: crypt-sha.c:69
int px_gen_salt(const char *salt_type, char *buf, int rounds)
Definition: px-crypt.c:156
char * px_crypt_md5(const char *pw, const char *salt, char *passwd, unsigned dstlen)
Definition: crypt-md5.c:34
char * _crypt_gensalt_sha512_rn(unsigned long count, const char *input, int size, char *output, int output_size)
Definition: crypt-gensalt.c:243
char * px_crypt(const char *psw, const char *salt, char *buf, unsigned len)
Definition: px-crypt.c:102
char * _crypt_gensalt_blowfish_rn(unsigned long count, const char *input, int size, char *output, int output_size)
Definition: crypt-gensalt.c:161
char * px_crypt_des(const char *key, const char *setting)
Definition: crypt-des.c:651
char * _crypt_gensalt_extended_rn(unsigned long count, const char *input, int size, char *output, int output_size)
Definition: crypt-gensalt.c:43

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