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| author | djm <> | 2008-09-06 12:15:56 +0000 |
|---|---|---|
| committer | djm <> | 2008-09-06 12:15:56 +0000 |
| commit | 12867252827c8efaa8ddd1fa3b3d6e321e2bcdef (patch) | |
| tree | b7a1f167ae5aeff4cfd8a18b598b68fe98a066fd /src/lib/libcrypto/ecdh/ech_lib.c | |
| parent | f519f07de9bfb123f2b32aa3965e6f73c8364b80 (diff) | |
| parent | 5a3c0a05c7f2c5d3c584b7c8d6aec836dd724c80 (diff) | |
| download | openbsd-12867252827c8efaa8ddd1fa3b3d6e321e2bcdef.tar.gz openbsd-12867252827c8efaa8ddd1fa3b3d6e321e2bcdef.tar.bz2 openbsd-12867252827c8efaa8ddd1fa3b3d6e321e2bcdef.zip | |
This commit was generated by cvs2git to track changes on a CVS vendor
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Diffstat (limited to 'src/lib/libcrypto/ecdh/ech_lib.c')
| -rw-r--r-- | src/lib/libcrypto/ecdh/ech_lib.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/lib/libcrypto/ecdh/ech_lib.c b/src/lib/libcrypto/ecdh/ech_lib.c new file mode 100644 index 0000000000..e89b1d4772 --- /dev/null +++ b/src/lib/libcrypto/ecdh/ech_lib.c | |||
| @@ -0,0 +1,247 @@ | |||
| 1 | /* crypto/ecdh/ech_lib.c */ | ||
| 2 | /* ==================================================================== | ||
| 3 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | ||
| 4 | * | ||
| 5 | * The Elliptic Curve Public-Key Crypto Library (ECC Code) included | ||
| 6 | * herein is developed by SUN MICROSYSTEMS, INC., and is contributed | ||
| 7 | * to the OpenSSL project. | ||
| 8 | * | ||
| 9 | * The ECC Code is licensed pursuant to the OpenSSL open source | ||
| 10 | * license provided below. | ||
| 11 | * | ||
| 12 | * The ECDH software is originally written by Douglas Stebila of | ||
| 13 | * Sun Microsystems Laboratories. | ||
| 14 | * | ||
| 15 | */ | ||
| 16 | /* ==================================================================== | ||
| 17 | * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. | ||
| 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 | * | ||
| 23 | * 1. Redistributions of source code must retain the above copyright | ||
| 24 | * notice, this list of conditions and the following disclaimer. | ||
| 25 | * | ||
| 26 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer in | ||
| 28 | * the documentation and/or other materials provided with the | ||
| 29 | * distribution. | ||
| 30 | * | ||
| 31 | * 3. All advertising materials mentioning features or use of this | ||
| 32 | * software must display the following acknowledgment: | ||
| 33 | * "This product includes software developed by the OpenSSL Project | ||
| 34 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | ||
| 35 | * | ||
| 36 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 37 | * endorse or promote products derived from this software without | ||
| 38 | * prior written permission. For written permission, please contact | ||
| 39 | * openssl-core@OpenSSL.org. | ||
| 40 | * | ||
| 41 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 42 | * nor may "OpenSSL" appear in their names without prior written | ||
| 43 | * permission of the OpenSSL Project. | ||
| 44 | * | ||
| 45 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 46 | * acknowledgment: | ||
| 47 | * "This product includes software developed by the OpenSSL Project | ||
| 48 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | ||
| 49 | * | ||
| 50 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 51 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 52 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 53 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 54 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 56 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 57 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 58 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 59 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 60 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 61 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 62 | * ==================================================================== | ||
| 63 | * | ||
| 64 | * This product includes cryptographic software written by Eric Young | ||
| 65 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 66 | * Hudson (tjh@cryptsoft.com). | ||
| 67 | * | ||
| 68 | */ | ||
| 69 | |||
| 70 | #include "ech_locl.h" | ||
| 71 | #include <string.h> | ||
| 72 | #ifndef OPENSSL_NO_ENGINE | ||
| 73 | #include <openssl/engine.h> | ||
| 74 | #endif | ||
| 75 | #include <openssl/err.h> | ||
| 76 | |||
| 77 | const char ECDH_version[]="ECDH" OPENSSL_VERSION_PTEXT; | ||
| 78 | |||
| 79 | static const ECDH_METHOD *default_ECDH_method = NULL; | ||
| 80 | |||
| 81 | static void *ecdh_data_new(void); | ||
| 82 | static void *ecdh_data_dup(void *); | ||
| 83 | static void ecdh_data_free(void *); | ||
| 84 | |||
| 85 | void ECDH_set_default_method(const ECDH_METHOD *meth) | ||
| 86 | { | ||
| 87 | default_ECDH_method = meth; | ||
| 88 | } | ||
| 89 | |||
| 90 | const ECDH_METHOD *ECDH_get_default_method(void) | ||
| 91 | { | ||
| 92 | if(!default_ECDH_method) | ||
| 93 | default_ECDH_method = ECDH_OpenSSL(); | ||
| 94 | return default_ECDH_method; | ||
| 95 | } | ||
| 96 | |||
| 97 | int ECDH_set_method(EC_KEY *eckey, const ECDH_METHOD *meth) | ||
| 98 | { | ||
| 99 | const ECDH_METHOD *mtmp; | ||
| 100 | ECDH_DATA *ecdh; | ||
| 101 | |||
| 102 | ecdh = ecdh_check(eckey); | ||
| 103 | |||
| 104 | if (ecdh == NULL) | ||
| 105 | return 0; | ||
| 106 | |||
| 107 | mtmp = ecdh->meth; | ||
| 108 | #if 0 | ||
| 109 | if (mtmp->finish) | ||
| 110 | mtmp->finish(eckey); | ||
| 111 | #endif | ||
| 112 | #ifndef OPENSSL_NO_ENGINE | ||
| 113 | if (ecdh->engine) | ||
| 114 | { | ||
| 115 | ENGINE_finish(ecdh->engine); | ||
| 116 | ecdh->engine = NULL; | ||
| 117 | } | ||
| 118 | #endif | ||
| 119 | ecdh->meth = meth; | ||
| 120 | #if 0 | ||
| 121 | if (meth->init) | ||
| 122 | meth->init(eckey); | ||
| 123 | #endif | ||
| 124 | return 1; | ||
| 125 | } | ||
| 126 | |||
| 127 | static ECDH_DATA *ECDH_DATA_new_method(ENGINE *engine) | ||
| 128 | { | ||
| 129 | ECDH_DATA *ret; | ||
| 130 | |||
| 131 | ret=(ECDH_DATA *)OPENSSL_malloc(sizeof(ECDH_DATA)); | ||
| 132 | if (ret == NULL) | ||
| 133 | { | ||
| 134 | ECDHerr(ECDH_F_ECDH_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE); | ||
| 135 | return(NULL); | ||
| 136 | } | ||
| 137 | |||
| 138 | ret->init = NULL; | ||
| 139 | |||
| 140 | ret->meth = ECDH_get_default_method(); | ||
| 141 | ret->engine = engine; | ||
| 142 | #ifndef OPENSSL_NO_ENGINE | ||
| 143 | if (!ret->engine) | ||
| 144 | ret->engine = ENGINE_get_default_ECDH(); | ||
| 145 | if (ret->engine) | ||
| 146 | { | ||
| 147 | ret->meth = ENGINE_get_ECDH(ret->engine); | ||
| 148 | if (!ret->meth) | ||
| 149 | { | ||
| 150 | ECDHerr(ECDH_F_ECDH_DATA_NEW_METHOD, ERR_R_ENGINE_LIB); | ||
| 151 | ENGINE_finish(ret->engine); | ||
| 152 | OPENSSL_free(ret); | ||
| 153 | return NULL; | ||
| 154 | } | ||
| 155 | } | ||
| 156 | #endif | ||
| 157 | |||
| 158 | ret->flags = ret->meth->flags; | ||
| 159 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDH, ret, &ret->ex_data); | ||
| 160 | #if 0 | ||
| 161 | if ((ret->meth->init != NULL) && !ret->meth->init(ret)) | ||
| 162 | { | ||
| 163 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, ret, &ret->ex_data); | ||
| 164 | OPENSSL_free(ret); | ||
| 165 | ret=NULL; | ||
| 166 | } | ||
| 167 | #endif | ||
| 168 | return(ret); | ||
| 169 | } | ||
| 170 | |||
| 171 | static void *ecdh_data_new(void) | ||
| 172 | { | ||
| 173 | return (void *)ECDH_DATA_new_method(NULL); | ||
| 174 | } | ||
| 175 | |||
| 176 | static void *ecdh_data_dup(void *data) | ||
| 177 | { | ||
| 178 | ECDH_DATA *r = (ECDH_DATA *)data; | ||
| 179 | |||
| 180 | /* XXX: dummy operation */ | ||
| 181 | if (r == NULL) | ||
| 182 | return NULL; | ||
| 183 | |||
| 184 | return (void *)ecdh_data_new(); | ||
| 185 | } | ||
| 186 | |||
| 187 | void ecdh_data_free(void *data) | ||
| 188 | { | ||
| 189 | ECDH_DATA *r = (ECDH_DATA *)data; | ||
| 190 | |||
| 191 | #ifndef OPENSSL_NO_ENGINE | ||
| 192 | if (r->engine) | ||
| 193 | ENGINE_finish(r->engine); | ||
| 194 | #endif | ||
| 195 | |||
| 196 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, r, &r->ex_data); | ||
| 197 | |||
| 198 | OPENSSL_cleanse((void *)r, sizeof(ECDH_DATA)); | ||
| 199 | |||
| 200 | OPENSSL_free(r); | ||
| 201 | } | ||
| 202 | |||
| 203 | ECDH_DATA *ecdh_check(EC_KEY *key) | ||
| 204 | { | ||
| 205 | ECDH_DATA *ecdh_data; | ||
| 206 | |||
| 207 | void *data = EC_KEY_get_key_method_data(key, ecdh_data_dup, | ||
| 208 | ecdh_data_free, ecdh_data_free); | ||
| 209 | if (data == NULL) | ||
| 210 | { | ||
| 211 | ecdh_data = (ECDH_DATA *)ecdh_data_new(); | ||
| 212 | if (ecdh_data == NULL) | ||
| 213 | return NULL; | ||
| 214 | EC_KEY_insert_key_method_data(key, (void *)ecdh_data, | ||
| 215 | ecdh_data_dup, ecdh_data_free, ecdh_data_free); | ||
| 216 | } | ||
| 217 | else | ||
| 218 | ecdh_data = (ECDH_DATA *)data; | ||
| 219 | |||
| 220 | |||
| 221 | return ecdh_data; | ||
| 222 | } | ||
| 223 | |||
| 224 | int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | ||
| 225 | CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | ||
| 226 | { | ||
| 227 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDH, argl, argp, | ||
| 228 | new_func, dup_func, free_func); | ||
| 229 | } | ||
| 230 | |||
| 231 | int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg) | ||
| 232 | { | ||
| 233 | ECDH_DATA *ecdh; | ||
| 234 | ecdh = ecdh_check(d); | ||
| 235 | if (ecdh == NULL) | ||
| 236 | return 0; | ||
| 237 | return(CRYPTO_set_ex_data(&ecdh->ex_data,idx,arg)); | ||
| 238 | } | ||
| 239 | |||
| 240 | void *ECDH_get_ex_data(EC_KEY *d, int idx) | ||
| 241 | { | ||
| 242 | ECDH_DATA *ecdh; | ||
| 243 | ecdh = ecdh_check(d); | ||
| 244 | if (ecdh == NULL) | ||
| 245 | return NULL; | ||
| 246 | return(CRYPTO_get_ex_data(&ecdh->ex_data,idx)); | ||
| 247 | } | ||
