modules: disable dummy module declarations
[dragonfly.git] / contrib / wpa_supplicant-0.5.8 / crypto_gnutls.c
blob4bf75f132a00973cc1251bfc30f1d2ac416ad78d
1 /*
2 * WPA Supplicant / wrapper functions for libgcrypt
3 * Copyright (c) 2004-2005, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
12 * See README and COPYING for more details.
15 #include "includes.h"
16 #include <gcrypt.h>
18 #include "common.h"
19 #include "crypto.h"
21 void md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
23 gcry_md_hd_t hd;
24 unsigned char *p;
25 size_t i;
27 if (gcry_md_open(&hd, GCRY_MD_MD4, 0) != GPG_ERR_NO_ERROR)
28 return;
29 for (i = 0; i < num_elem; i++)
30 gcry_md_write(hd, addr[i], len[i]);
31 p = gcry_md_read(hd, GCRY_MD_MD4);
32 if (p)
33 memcpy(mac, p, gcry_md_get_algo_dlen(GCRY_MD_MD4));
34 gcry_md_close(hd);
38 void des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
40 gcry_cipher_hd_t hd;
41 u8 pkey[8], next, tmp;
42 int i;
44 /* Add parity bits to the key */
45 next = 0;
46 for (i = 0; i < 7; i++) {
47 tmp = key[i];
48 pkey[i] = (tmp >> i) | next | 1;
49 next = tmp << (7 - i);
51 pkey[i] = next | 1;
53 gcry_cipher_open(&hd, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
54 gcry_err_code(gcry_cipher_setkey(hd, pkey, 8));
55 gcry_cipher_encrypt(hd, cypher, 8, clear, 8);
56 gcry_cipher_close(hd);
60 #ifdef EAP_TLS_FUNCS
61 void md5_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
63 gcry_md_hd_t hd;
64 unsigned char *p;
65 size_t i;
67 if (gcry_md_open(&hd, GCRY_MD_MD5, 0) != GPG_ERR_NO_ERROR)
68 return;
69 for (i = 0; i < num_elem; i++)
70 gcry_md_write(hd, addr[i], len[i]);
71 p = gcry_md_read(hd, GCRY_MD_MD5);
72 if (p)
73 memcpy(mac, p, gcry_md_get_algo_dlen(GCRY_MD_MD5));
74 gcry_md_close(hd);
78 void sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
80 gcry_md_hd_t hd;
81 unsigned char *p;
82 size_t i;
84 if (gcry_md_open(&hd, GCRY_MD_SHA1, 0) != GPG_ERR_NO_ERROR)
85 return;
86 for (i = 0; i < num_elem; i++)
87 gcry_md_write(hd, addr[i], len[i]);
88 p = gcry_md_read(hd, GCRY_MD_SHA1);
89 if (p)
90 memcpy(mac, p, gcry_md_get_algo_dlen(GCRY_MD_SHA1));
91 gcry_md_close(hd);
95 int fips186_2_prf(const u8 *seed, size_t seed_len, u8 *x, size_t xlen)
97 /* FIX: how to do this with libgcrypt? */
98 return -1;
102 void * aes_encrypt_init(const u8 *key, size_t len)
104 gcry_cipher_hd_t hd;
106 if (gcry_cipher_open(&hd, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_ECB, 0) !=
107 GPG_ERR_NO_ERROR) {
108 printf("cipher open failed\n");
109 return NULL;
111 if (gcry_cipher_setkey(hd, key, len) != GPG_ERR_NO_ERROR) {
112 printf("setkey failed\n");
113 gcry_cipher_close(hd);
114 return NULL;
117 return hd;
121 void aes_encrypt(void *ctx, const u8 *plain, u8 *crypt)
123 gcry_cipher_hd_t hd = ctx;
124 gcry_cipher_encrypt(hd, crypt, 16, plain, 16);
128 void aes_encrypt_deinit(void *ctx)
130 gcry_cipher_hd_t hd = ctx;
131 gcry_cipher_close(hd);
135 void * aes_decrypt_init(const u8 *key, size_t len)
137 gcry_cipher_hd_t hd;
139 if (gcry_cipher_open(&hd, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_ECB, 0) !=
140 GPG_ERR_NO_ERROR)
141 return NULL;
142 if (gcry_cipher_setkey(hd, key, len) != GPG_ERR_NO_ERROR) {
143 gcry_cipher_close(hd);
144 return NULL;
147 return hd;
151 void aes_decrypt(void *ctx, const u8 *crypt, u8 *plain)
153 gcry_cipher_hd_t hd = ctx;
154 gcry_cipher_decrypt(hd, plain, 16, crypt, 16);
158 void aes_decrypt_deinit(void *ctx)
160 gcry_cipher_hd_t hd = ctx;
161 gcry_cipher_close(hd);
163 #endif /* EAP_TLS_FUNCS */