3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
63 #include <openssl/objects.h>
64 #include <openssl/evp.h>
65 #include <openssl/bn.h>
68 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx)
71 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) {
72 EVPerr(EVP_F_EVP_PKEY_PARAMGEN_INIT,
73 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
76 ctx->operation = EVP_PKEY_OP_PARAMGEN;
77 if (!ctx->pmeth->paramgen_init)
79 ret = ctx->pmeth->paramgen_init(ctx);
81 ctx->operation = EVP_PKEY_OP_UNDEFINED;
85 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
88 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) {
89 EVPerr(EVP_F_EVP_PKEY_PARAMGEN,
90 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
94 if (ctx->operation != EVP_PKEY_OP_PARAMGEN) {
95 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED);
103 *ppkey = EVP_PKEY_new();
105 if (*ppkey == NULL) {
106 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, ERR_R_MALLOC_FAILURE);
110 ret = ctx->pmeth->paramgen(ctx, *ppkey);
112 EVP_PKEY_free(*ppkey);
118 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx)
121 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) {
122 EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT,
123 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
126 ctx->operation = EVP_PKEY_OP_KEYGEN;
127 if (!ctx->pmeth->keygen_init)
129 ret = ctx->pmeth->keygen_init(ctx);
131 ctx->operation = EVP_PKEY_OP_UNDEFINED;
135 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
139 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen) {
140 EVPerr(EVP_F_EVP_PKEY_KEYGEN,
141 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
144 if (ctx->operation != EVP_PKEY_OP_KEYGEN) {
145 EVPerr(EVP_F_EVP_PKEY_KEYGEN, EVP_R_OPERATON_NOT_INITIALIZED);
153 *ppkey = EVP_PKEY_new();
157 ret = ctx->pmeth->keygen(ctx, *ppkey);
159 EVP_PKEY_free(*ppkey);
165 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb)
167 ctx->pkey_gencb = cb;
170 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx)
172 return ctx->pkey_gencb;
176 * "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB style
180 static int trans_cb(int a, int b, BN_GENCB *gcb)
182 EVP_PKEY_CTX *ctx = gcb->arg;
183 ctx->keygen_info[0] = a;
184 ctx->keygen_info[1] = b;
185 return ctx->pkey_gencb(ctx);
188 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx)
190 BN_GENCB_set(cb, trans_cb, ctx)
193 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx)
196 return ctx->keygen_info_count;
197 if (idx < 0 || idx > ctx->keygen_info_count)
199 return ctx->keygen_info[idx];
202 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e,
203 const unsigned char *key, int keylen)
205 EVP_PKEY_CTX *mac_ctx = NULL;
206 EVP_PKEY *mac_key = NULL;
207 mac_ctx = EVP_PKEY_CTX_new_id(type, e);
210 if (EVP_PKEY_keygen_init(mac_ctx) <= 0)
212 if (EVP_PKEY_CTX_ctrl(mac_ctx, -1, EVP_PKEY_OP_KEYGEN,
213 EVP_PKEY_CTRL_SET_MAC_KEY,
214 keylen, (void *)key) <= 0)
216 if (EVP_PKEY_keygen(mac_ctx, &mac_key) <= 0)
220 EVP_PKEY_CTX_free(mac_ctx);