2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
62 #include <openssl/objects.h>
63 #include <openssl/evp.h>
66 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx)
69 if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen)
71 EVPerr(EVP_F_EVP_PKEY_PARAMGEN_INIT,
72 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
75 ctx->operation = EVP_PKEY_OP_PARAMGEN;
76 if (!ctx->pmeth->paramgen_init)
78 ret = ctx->pmeth->paramgen_init(ctx);
80 ctx->operation = EVP_PKEY_OP_UNDEFINED;
84 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
87 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)
96 EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED);
104 *ppkey = EVP_PKEY_new();
106 ret = ctx->pmeth->paramgen(ctx, *ppkey);
109 EVP_PKEY_free(*ppkey);
115 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx)
118 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen)
120 EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT,
121 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
124 ctx->operation = EVP_PKEY_OP_KEYGEN;
125 if (!ctx->pmeth->keygen_init)
127 ret = ctx->pmeth->keygen_init(ctx);
129 ctx->operation = EVP_PKEY_OP_UNDEFINED;
133 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
137 if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen)
139 EVPerr(EVP_F_EVP_PKEY_KEYGEN,
140 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
143 if (ctx->operation != EVP_PKEY_OP_KEYGEN)
145 EVPerr(EVP_F_EVP_PKEY_KEYGEN, EVP_R_OPERATON_NOT_INITIALIZED);
153 *ppkey = EVP_PKEY_new();
155 ret = ctx->pmeth->keygen(ctx, *ppkey);
158 EVP_PKEY_free(*ppkey);
164 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb)
166 ctx->pkey_gencb = cb;
169 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx)
171 return ctx->pkey_gencb;
174 /* "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB
178 static int trans_cb(int a, int b, BN_GENCB *gcb)
180 EVP_PKEY_CTX *ctx = gcb->arg;
181 ctx->keygen_info[0] = a;
182 ctx->keygen_info[1] = b;
183 return ctx->pkey_gencb(ctx);
186 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx)
188 BN_GENCB_set(cb, trans_cb, ctx)
191 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx)
194 return ctx->keygen_info_count;
195 if (idx < 0 || idx > ctx->keygen_info_count)
197 return ctx->keygen_info[idx];