1 /* $Id: algorithm.h,v 1.1.1.1 2005/02/12 11:11:40 manu Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _ALGORITHM_H 33 #define _ALGORITHM_H 34 35 #include <gnuc.h> 36 37 /* algorithm class */ 38 enum { 39 algclass_ipsec_enc, 40 algclass_ipsec_auth, 41 algclass_ipsec_comp, 42 algclass_isakmp_enc, 43 algclass_isakmp_hash, 44 algclass_isakmp_dh, 45 algclass_isakmp_ameth, /* authentication method. */ 46 #define MAXALGCLASS 7 47 }; 48 49 #define ALG_DEFAULT_KEYLEN 64 50 51 #define ALGTYPE_NOTHING 0 52 53 /* algorithm type */ 54 enum algtype { 55 algtype_nothing = 0, 56 57 /* enc */ 58 algtype_des_iv64, 59 algtype_des, 60 algtype_3des, 61 algtype_rc5, 62 algtype_idea, 63 algtype_cast128, 64 algtype_blowfish, 65 algtype_3idea, 66 algtype_des_iv32, 67 algtype_rc4, 68 algtype_null_enc, 69 algtype_aes, 70 algtype_twofish, 71 72 /* ipsec auth */ 73 algtype_hmac_md5, 74 algtype_hmac_sha1, 75 algtype_des_mac, 76 algtype_kpdk, 77 algtype_non_auth, 78 algtype_hmac_sha2_256, 79 algtype_hmac_sha2_384, 80 algtype_hmac_sha2_512, 81 82 /* ipcomp */ 83 algtype_oui, 84 algtype_deflate, 85 algtype_lzs, 86 87 /* hash */ 88 algtype_md5, 89 algtype_sha1, 90 algtype_tiger, 91 algtype_sha2_256, 92 algtype_sha2_384, 93 algtype_sha2_512, 94 95 /* dh_group */ 96 algtype_modp768, 97 algtype_modp1024, 98 algtype_ec2n155, 99 algtype_ec2n185, 100 algtype_modp1536, 101 algtype_modp2048, 102 algtype_modp3072, 103 algtype_modp4096, 104 algtype_modp6144, 105 algtype_modp8192, 106 107 /* authentication method. */ 108 algtype_psk, 109 algtype_dsssig, 110 algtype_rsasig, 111 algtype_rsaenc, 112 algtype_rsarev, 113 algtype_gssapikrb, 114 #ifdef ENABLE_HYBRID 115 algtype_hybrid_rsa_s, 116 algtype_hybrid_dss_s, 117 algtype_hybrid_rsa_c, 118 algtype_hybrid_dss_c, 119 #endif 120 }; 121 122 struct hmac_algorithm { 123 char *name; 124 int type; 125 int doi; 126 caddr_t (*init) __P((vchar_t *)); 127 void (*update) __P((caddr_t, vchar_t *)); 128 vchar_t *(*final) __P((caddr_t)); 129 int (*hashlen) __P((void)); 130 vchar_t *(*one) __P((vchar_t *, vchar_t *)); 131 }; 132 133 struct hash_algorithm { 134 char *name; 135 int type; 136 int doi; 137 caddr_t (*init) __P((void)); 138 void (*update) __P((caddr_t, vchar_t *)); 139 vchar_t *(*final) __P((caddr_t)); 140 int (*hashlen) __P((void)); 141 vchar_t *(*one) __P((vchar_t *)); 142 }; 143 144 struct enc_algorithm { 145 char *name; 146 int type; 147 int doi; 148 int blocklen; 149 vchar_t *(*encrypt) __P((vchar_t *, vchar_t *, vchar_t *)); 150 vchar_t *(*decrypt) __P((vchar_t *, vchar_t *, vchar_t *)); 151 int (*weakkey) __P((vchar_t *)); 152 int (*keylen) __P((int)); 153 }; 154 155 /* dh group */ 156 struct dh_algorithm { 157 char *name; 158 int type; 159 int doi; 160 struct dhgroup *dhgroup; 161 }; 162 163 /* ipcomp, auth meth, dh group */ 164 struct misc_algorithm { 165 char *name; 166 int type; 167 int doi; 168 }; 169 170 extern int alg_oakley_hashdef_ok __P((int)); 171 extern int alg_oakley_hashdef_doi __P((int)); 172 extern int alg_oakley_hashdef_hashlen __P((int)); 173 extern vchar_t *alg_oakley_hashdef_one __P((int, vchar_t *)); 174 175 extern int alg_oakley_hmacdef_doi __P((int)); 176 extern vchar_t *alg_oakley_hmacdef_one __P((int, vchar_t *, vchar_t *)); 177 178 extern int alg_oakley_encdef_ok __P((int)); 179 extern int alg_oakley_encdef_doi __P((int)); 180 extern int alg_oakley_encdef_keylen __P((int, int)); 181 extern int alg_oakley_encdef_blocklen __P((int)); 182 extern vchar_t *alg_oakley_encdef_decrypt __P((int, vchar_t *, vchar_t *, vchar_t *)); 183 extern vchar_t *alg_oakley_encdef_encrypt __P((int, vchar_t *, vchar_t *, vchar_t *)); 184 185 extern int alg_ipsec_encdef_doi __P((int)); 186 extern int alg_ipsec_encdef_keylen __P((int, int)); 187 188 extern int alg_ipsec_hmacdef_doi __P((int)); 189 extern int alg_ipsec_hmacdef_hashlen __P((int)); 190 191 extern int alg_ipsec_compdef_doi __P((int)); 192 193 extern int alg_oakley_dhdef_doi __P((int)); 194 extern int alg_oakley_dhdef_ok __P((int)); 195 extern struct dhgroup *alg_oakley_dhdef_group __P((int)); 196 197 extern int alg_oakley_authdef_doi __P((int)); 198 199 extern int default_keylen __P((int, int)); 200 extern int check_keylen __P((int, int, int)); 201 extern int algtype2doi __P((int, int)); 202 extern int algclass2doi __P((int)); 203 204 extern const char *alg_oakley_encdef_name __P((int)); 205 extern const char *alg_oakley_hashdef_name __P((int)); 206 extern const char *alg_oakley_dhdef_name __P((int)); 207 extern const char *alg_oakley_authdef_name __P((int)); 208 209 #endif /* _ALGORITHM_H */ 210