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 "internal/bn_int.h"
66 #include "internal/evp_int.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 ret
= ctx
->pmeth
->paramgen(ctx
, *ppkey
);
107 EVP_PKEY_free(*ppkey
);
113 int EVP_PKEY_keygen_init(EVP_PKEY_CTX
*ctx
)
116 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->keygen
) {
117 EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT
,
118 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
121 ctx
->operation
= EVP_PKEY_OP_KEYGEN
;
122 if (!ctx
->pmeth
->keygen_init
)
124 ret
= ctx
->pmeth
->keygen_init(ctx
);
126 ctx
->operation
= EVP_PKEY_OP_UNDEFINED
;
130 int EVP_PKEY_keygen(EVP_PKEY_CTX
*ctx
, EVP_PKEY
**ppkey
)
134 if (!ctx
|| !ctx
->pmeth
|| !ctx
->pmeth
->keygen
) {
135 EVPerr(EVP_F_EVP_PKEY_KEYGEN
,
136 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE
);
139 if (ctx
->operation
!= EVP_PKEY_OP_KEYGEN
) {
140 EVPerr(EVP_F_EVP_PKEY_KEYGEN
, EVP_R_OPERATON_NOT_INITIALIZED
);
148 *ppkey
= EVP_PKEY_new();
150 ret
= ctx
->pmeth
->keygen(ctx
, *ppkey
);
152 EVP_PKEY_free(*ppkey
);
158 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX
*ctx
, EVP_PKEY_gen_cb
*cb
)
160 ctx
->pkey_gencb
= cb
;
163 EVP_PKEY_gen_cb
*EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX
*ctx
)
165 return ctx
->pkey_gencb
;
169 * "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB style
173 static int trans_cb(int a
, int b
, BN_GENCB
*gcb
)
175 EVP_PKEY_CTX
*ctx
= BN_GENCB_get_arg(gcb
);
176 ctx
->keygen_info
[0] = a
;
177 ctx
->keygen_info
[1] = b
;
178 return ctx
->pkey_gencb(ctx
);
181 void evp_pkey_set_cb_translate(BN_GENCB
*cb
, EVP_PKEY_CTX
*ctx
)
183 BN_GENCB_set(cb
, trans_cb
, ctx
);
186 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX
*ctx
, int idx
)
189 return ctx
->keygen_info_count
;
190 if (idx
< 0 || idx
> ctx
->keygen_info_count
)
192 return ctx
->keygen_info
[idx
];
195 EVP_PKEY
*EVP_PKEY_new_mac_key(int type
, ENGINE
*e
,
196 const unsigned char *key
, int keylen
)
198 EVP_PKEY_CTX
*mac_ctx
= NULL
;
199 EVP_PKEY
*mac_key
= NULL
;
200 mac_ctx
= EVP_PKEY_CTX_new_id(type
, e
);
203 if (EVP_PKEY_keygen_init(mac_ctx
) <= 0)
205 if (EVP_PKEY_CTX_set_mac_key(mac_ctx
, key
, keylen
) <= 0)
207 if (EVP_PKEY_keygen(mac_ctx
, &mac_key
) <= 0)
210 EVP_PKEY_CTX_free(mac_ctx
);