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| 1 /* pmeth_gn.c */ | |
| 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
| 3 * project 2006. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 2006 The OpenSSL Project. 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 * | |
| 12 * 1. Redistributions of source code must retain the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * | |
| 15 * 2. Redistributions in binary form must reproduce the above copyright | |
| 16 * notice, this list of conditions and the following disclaimer in | |
| 17 * the documentation and/or other materials provided with the | |
| 18 * distribution. | |
| 19 * | |
| 20 * 3. All advertising materials mentioning features or use of this | |
| 21 * software must display the following acknowledgment: | |
| 22 * "This product includes software developed by the OpenSSL Project | |
| 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 24 * | |
| 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 26 * endorse or promote products derived from this software without | |
| 27 * prior written permission. For written permission, please contact | |
| 28 * licensing@OpenSSL.org. | |
| 29 * | |
| 30 * 5. Products derived from this software may not be called "OpenSSL" | |
| 31 * nor may "OpenSSL" appear in their names without prior written | |
| 32 * permission of the OpenSSL Project. | |
| 33 * | |
| 34 * 6. Redistributions of any form whatsoever must retain the following | |
| 35 * acknowledgment: | |
| 36 * "This product includes software developed by the OpenSSL Project | |
| 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 38 * | |
| 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 50 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 51 * ==================================================================== | |
| 52 * | |
| 53 * This product includes cryptographic software written by Eric Young | |
| 54 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 55 * Hudson (tjh@cryptsoft.com). | |
| 56 * | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include <stdlib.h> | |
| 61 #include "cryptlib.h" | |
| 62 #include <openssl/objects.h> | |
| 63 #include <openssl/evp.h> | |
| 64 #include <openssl/bn.h> | |
| 65 #include "evp_locl.h" | |
| 66 | |
| 67 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx) | |
| 68 { | |
| 69 int ret; | |
| 70 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) | |
| 71 { | |
| 72 EVPerr(EVP_F_EVP_PKEY_PARAMGEN_INIT, | |
| 73 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
| 74 return -2; | |
| 75 } | |
| 76 ctx->operation = EVP_PKEY_OP_PARAMGEN; | |
| 77 if (!ctx->pmeth->paramgen_init) | |
| 78 return 1; | |
| 79 ret = ctx->pmeth->paramgen_init(ctx); | |
| 80 if (ret <= 0) | |
| 81 ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
| 82 return ret; | |
| 83 } | |
| 84 | |
| 85 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey) | |
| 86 { | |
| 87 int ret; | |
| 88 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) | |
| 89 { | |
| 90 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, | |
| 91 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
| 92 return -2; | |
| 93 } | |
| 94 | |
| 95 if (ctx->operation != EVP_PKEY_OP_PARAMGEN) | |
| 96 { | |
| 97 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED); | |
| 98 return -1; | |
| 99 } | |
| 100 | |
| 101 if (!ppkey) | |
| 102 return -1; | |
| 103 | |
| 104 if (!*ppkey) | |
| 105 *ppkey = EVP_PKEY_new(); | |
| 106 | |
| 107 ret = ctx->pmeth->paramgen(ctx, *ppkey); | |
| 108 if (ret <= 0) | |
| 109 { | |
| 110 EVP_PKEY_free(*ppkey); | |
| 111 *ppkey = NULL; | |
| 112 } | |
| 113 return ret; | |
| 114 } | |
| 115 | |
| 116 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx) | |
| 117 { | |
| 118 int ret; | |
| 119 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) | |
| 120 { | |
| 121 EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT, | |
| 122 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
| 123 return -2; | |
| 124 } | |
| 125 ctx->operation = EVP_PKEY_OP_KEYGEN; | |
| 126 if (!ctx->pmeth->keygen_init) | |
| 127 return 1; | |
| 128 ret = ctx->pmeth->keygen_init(ctx); | |
| 129 if (ret <= 0) | |
| 130 ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
| 131 return ret; | |
| 132 } | |
| 133 | |
| 134 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey) | |
| 135 { | |
| 136 int ret; | |
| 137 | |
| 138 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) | |
| 139 { | |
| 140 EVPerr(EVP_F_EVP_PKEY_KEYGEN, | |
| 141 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
| 142 return -2; | |
| 143 } | |
| 144 if (ctx->operation != EVP_PKEY_OP_KEYGEN) | |
| 145 { | |
| 146 EVPerr(EVP_F_EVP_PKEY_KEYGEN, EVP_R_OPERATON_NOT_INITIALIZED); | |
| 147 return -1; | |
| 148 } | |
| 149 | |
| 150 if (!ppkey) | |
| 151 return -1; | |
| 152 | |
| 153 if (!*ppkey) | |
| 154 *ppkey = EVP_PKEY_new(); | |
| 155 | |
| 156 ret = ctx->pmeth->keygen(ctx, *ppkey); | |
| 157 if (ret <= 0) | |
| 158 { | |
| 159 EVP_PKEY_free(*ppkey); | |
| 160 *ppkey = NULL; | |
| 161 } | |
| 162 return ret; | |
| 163 } | |
| 164 | |
| 165 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb) | |
| 166 { | |
| 167 ctx->pkey_gencb = cb; | |
| 168 } | |
| 169 | |
| 170 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx) | |
| 171 { | |
| 172 return ctx->pkey_gencb; | |
| 173 } | |
| 174 | |
| 175 /* "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB | |
| 176 * style callbacks. | |
| 177 */ | |
| 178 | |
| 179 static int trans_cb(int a, int b, BN_GENCB *gcb) | |
| 180 { | |
| 181 EVP_PKEY_CTX *ctx = gcb->arg; | |
| 182 ctx->keygen_info[0] = a; | |
| 183 ctx->keygen_info[1] = b; | |
| 184 return ctx->pkey_gencb(ctx); | |
| 185 } | |
| 186 | |
| 187 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx) | |
| 188 { | |
| 189 BN_GENCB_set(cb, trans_cb, ctx) | |
| 190 } | |
| 191 | |
| 192 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx) | |
| 193 { | |
| 194 if (idx == -1) | |
| 195 return ctx->keygen_info_count; | |
| 196 if (idx < 0 || idx > ctx->keygen_info_count) | |
| 197 return 0; | |
| 198 return ctx->keygen_info[idx]; | |
| 199 } | |
| 200 | |
| 201 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e, | |
| 202 const unsigned char *key, int keylen) | |
| 203 { | |
| 204 EVP_PKEY_CTX *mac_ctx = NULL; | |
| 205 EVP_PKEY *mac_key = NULL; | |
| 206 mac_ctx = EVP_PKEY_CTX_new_id(type, e); | |
| 207 if (!mac_ctx) | |
| 208 return NULL; | |
| 209 if (EVP_PKEY_keygen_init(mac_ctx) <= 0) | |
| 210 goto merr; | |
| 211 if (EVP_PKEY_CTX_ctrl(mac_ctx, -1, EVP_PKEY_OP_KEYGEN, | |
| 212 EVP_PKEY_CTRL_SET_MAC_KEY, | |
| 213 keylen, (void *)key) <= 0) | |
| 214 goto merr; | |
| 215 if (EVP_PKEY_keygen(mac_ctx, &mac_key) <= 0) | |
| 216 goto merr; | |
| 217 merr: | |
| 218 if (mac_ctx) | |
| 219 EVP_PKEY_CTX_free(mac_ctx); | |
| 220 return mac_key; | |
| 221 } | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master