diff options
Diffstat (limited to 'src/lib/libcrypto/evp/pmeth_gn.c')
| -rw-r--r-- | src/lib/libcrypto/evp/pmeth_gn.c | 221 | 
1 files changed, 221 insertions, 0 deletions
diff --git a/src/lib/libcrypto/evp/pmeth_gn.c b/src/lib/libcrypto/evp/pmeth_gn.c new file mode 100644 index 0000000000..4651c81370 --- /dev/null +++ b/src/lib/libcrypto/evp/pmeth_gn.c  | |||
| @@ -0,0 +1,221 @@ | |||
| 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 | } | ||
