]>
Commit | Line | Data |
---|---|---|
4d94ae00 BM |
1 | /* crypto/ecdsa/ecdsa_sign.c */ |
2 | /* ==================================================================== | |
3 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * | |
17 | * 3. All advertising materials mentioning features or use of this | |
18 | * software must display the following acknowledgment: | |
19 | * "This product includes software developed by the OpenSSL Project | |
20 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
21 | * | |
22 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
23 | * endorse or promote products derived from this software without | |
24 | * prior written permission. For written permission, please contact | |
25 | * openssl-core@OpenSSL.org. | |
26 | * | |
27 | * 5. Products derived from this software may not be called "OpenSSL" | |
28 | * nor may "OpenSSL" appear in their names without prior written | |
29 | * permission of the OpenSSL Project. | |
30 | * | |
31 | * 6. Redistributions of any form whatsoever must retain the following | |
32 | * acknowledgment: | |
33 | * "This product includes software developed by the OpenSSL Project | |
34 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
35 | * | |
36 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
37 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
39 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
40 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
42 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
43 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
44 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
45 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
46 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
47 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
48 | * ==================================================================== | |
49 | * | |
50 | * This product includes cryptographic software written by Eric Young | |
51 | * (eay@cryptsoft.com). This product includes software written by Tim | |
52 | * Hudson (tjh@cryptsoft.com). | |
53 | * | |
54 | */ | |
0bee0e62 | 55 | |
6a50d0a4 | 56 | #include "ecs_locl.h" |
58ae65cd | 57 | #ifndef OPENSSL_NO_ENGINE |
4d94ae00 | 58 | #include <openssl/engine.h> |
58ae65cd | 59 | #endif |
8c716869 | 60 | #include <openssl/rand.h> |
4d94ae00 | 61 | |
9dd84053 NL |
62 | ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey) |
63 | { | |
64 | return ECDSA_do_sign_ex(dgst, dlen, NULL, NULL, eckey); | |
65 | } | |
66 | ||
67 | ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dlen, | |
68 | const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey) | |
4d94ae00 | 69 | { |
14a7cfb3 BM |
70 | ECDSA_DATA *ecdsa = ecdsa_check(eckey); |
71 | if (ecdsa == NULL) | |
72 | return NULL; | |
0c9caf04 | 73 | return ecdsa->meth->ecdsa_do_sign(dgst, dlen, kinv, rp, eckey); |
4d94ae00 BM |
74 | } |
75 | ||
14a7cfb3 BM |
76 | int ECDSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char |
77 | *sig, unsigned int *siglen, EC_KEY *eckey) | |
9dd84053 NL |
78 | { |
79 | return ECDSA_sign_ex(type, dgst, dlen, sig, siglen, NULL, NULL, eckey); | |
80 | } | |
81 | ||
82 | int ECDSA_sign_ex(int type, const unsigned char *dgst, int dlen, unsigned char | |
83 | *sig, unsigned int *siglen, const BIGNUM *kinv, const BIGNUM *r, | |
84 | EC_KEY *eckey) | |
4d94ae00 BM |
85 | { |
86 | ECDSA_SIG *s; | |
8c716869 | 87 | RAND_seed(dgst, dlen); |
9dd84053 | 88 | s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey); |
4d94ae00 BM |
89 | if (s == NULL) |
90 | { | |
91 | *siglen=0; | |
9dd84053 | 92 | return 0; |
4d94ae00 | 93 | } |
9dd84053 | 94 | *siglen = i2d_ECDSA_SIG(s, &sig); |
4d94ae00 | 95 | ECDSA_SIG_free(s); |
9dd84053 | 96 | return 1; |
4d94ae00 BM |
97 | } |
98 | ||
14a7cfb3 BM |
99 | int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, |
100 | BIGNUM **rp) | |
4d94ae00 | 101 | { |
14a7cfb3 BM |
102 | ECDSA_DATA *ecdsa = ecdsa_check(eckey); |
103 | if (ecdsa == NULL) | |
104 | return 0; | |
190c615d | 105 | return ecdsa->meth->ecdsa_sign_setup(eckey, ctx_in, kinvp, rp); |
4d94ae00 | 106 | } |