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();
155 ret
= ctx
->pmeth
->keygen(ctx
, *ppkey
);
157 EVP_PKEY_free(*ppkey
);
163 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX
*ctx
, EVP_PKEY_gen_cb
*cb
)
165 ctx
->pkey_gencb
= cb
;
168 EVP_PKEY_gen_cb
*EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX
*ctx
)
170 return ctx
->pkey_gencb
;
174 * "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB style
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
];
200 EVP_PKEY
*EVP_PKEY_new_mac_key(int type
, ENGINE
*e
,
201 const unsigned char *key
, int keylen
)
203 EVP_PKEY_CTX
*mac_ctx
= NULL
;
204 EVP_PKEY
*mac_key
= NULL
;
205 mac_ctx
= EVP_PKEY_CTX_new_id(type
, e
);
208 if (EVP_PKEY_keygen_init(mac_ctx
) <= 0)
210 if (EVP_PKEY_CTX_ctrl(mac_ctx
, -1, EVP_PKEY_OP_KEYGEN
,
211 EVP_PKEY_CTRL_SET_MAC_KEY
,
212 keylen
, (void *)key
) <= 0)
214 if (EVP_PKEY_keygen(mac_ctx
, &mac_key
) <= 0)
218 EVP_PKEY_CTX_free(mac_ctx
);