summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/ecdsa
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/ecdsa')
-rw-r--r--src/lib/libcrypto/ecdsa/Makefile140
-rw-r--r--src/lib/libcrypto/ecdsa/ecdsa.h260
-rw-r--r--src/lib/libcrypto/ecdsa/ecdsatest.c572
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_asn1.c67
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_err.c106
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_lib.c278
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_locl.h115
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_ossl.c483
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_sign.c106
-rw-r--r--src/lib/libcrypto/ecdsa/ecs_vrf.c96
10 files changed, 2223 insertions, 0 deletions
diff --git a/src/lib/libcrypto/ecdsa/Makefile b/src/lib/libcrypto/ecdsa/Makefile
new file mode 100644
index 0000000000..e89e0c010c
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/Makefile
@@ -0,0 +1,140 @@
1#
2# crypto/ecdsa/Makefile
3#
4
5DIR= ecdsa
6TOP= ../..
7CC= cc
8INCLUDES= -I.. -I$(TOP) -I../../include
9CFLAG=-g -Wall
10MAKEFILE= Makefile
11AR= ar r
12
13CFLAGS= $(INCLUDES) $(CFLAG)
14
15GENERAL=Makefile
16TEST=ecdsatest.c
17APPS=
18
19LIB=$(TOP)/libcrypto.a
20LIBSRC= ecs_lib.c ecs_asn1.c ecs_ossl.c ecs_sign.c ecs_vrf.c ecs_err.c
21
22LIBOBJ= ecs_lib.o ecs_asn1.o ecs_ossl.o ecs_sign.o ecs_vrf.o ecs_err.o
23
24SRC= $(LIBSRC)
25
26EXHEADER= ecdsa.h
27HEADER= ecs_locl.h $(EXHEADER)
28
29ALL= $(GENERAL) $(SRC) $(HEADER)
30
31top:
32 (cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
33
34all: lib
35
36lib: $(LIBOBJ)
37 $(AR) $(LIB) $(LIBOBJ)
38 $(RANLIB) $(LIB) || echo Never mind.
39 @touch lib
40
41files:
42 $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO
43
44links:
45 @$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER)
46 @$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST)
47 @$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS)
48
49install:
50 @[ -n "$(INSTALLTOP)" ] # should be set by top Makefile...
51 @headerlist="$(EXHEADER)"; for i in $$headerlist; \
52 do \
53 (cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \
54 chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \
55 done;
56
57tags:
58 ctags $(SRC)
59
60tests:
61
62lint:
63 lint -DLINT $(INCLUDES) $(SRC)>fluff
64
65depend:
66 @[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
67 $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
68
69dclean:
70 $(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
71 mv -f Makefile.new $(MAKEFILE)
72
73clean:
74 rm -f *.o */*.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
75
76# DO NOT DELETE THIS LINE -- make depend depends on it.
77
78ecs_asn1.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
79ecs_asn1.o: ../../include/openssl/bio.h ../../include/openssl/crypto.h
80ecs_asn1.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
81ecs_asn1.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
82ecs_asn1.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
83ecs_asn1.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
84ecs_asn1.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
85ecs_asn1.o: ../../include/openssl/symhacks.h ecs_asn1.c ecs_locl.h
86ecs_err.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
87ecs_err.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
88ecs_err.o: ../../include/openssl/ec.h ../../include/openssl/ecdsa.h
89ecs_err.o: ../../include/openssl/err.h ../../include/openssl/lhash.h
90ecs_err.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
91ecs_err.o: ../../include/openssl/ossl_typ.h ../../include/openssl/safestack.h
92ecs_err.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
93ecs_err.o: ecs_err.c
94ecs_lib.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
95ecs_lib.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
96ecs_lib.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
97ecs_lib.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
98ecs_lib.o: ../../include/openssl/ecdsa.h ../../include/openssl/engine.h
99ecs_lib.o: ../../include/openssl/err.h ../../include/openssl/evp.h
100ecs_lib.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
101ecs_lib.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
102ecs_lib.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
103ecs_lib.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
104ecs_lib.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
105ecs_lib.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
106ecs_lib.o: ../../include/openssl/x509_vfy.h ecs_lib.c ecs_locl.h
107ecs_ossl.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
108ecs_ossl.o: ../../include/openssl/bn.h ../../include/openssl/crypto.h
109ecs_ossl.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
110ecs_ossl.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
111ecs_ossl.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
112ecs_ossl.o: ../../include/openssl/opensslconf.h
113ecs_ossl.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
114ecs_ossl.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
115ecs_ossl.o: ../../include/openssl/symhacks.h ecs_locl.h ecs_ossl.c
116ecs_sign.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
117ecs_sign.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
118ecs_sign.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
119ecs_sign.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
120ecs_sign.o: ../../include/openssl/engine.h ../../include/openssl/evp.h
121ecs_sign.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
122ecs_sign.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
123ecs_sign.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
124ecs_sign.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h
125ecs_sign.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
126ecs_sign.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
127ecs_sign.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
128ecs_sign.o: ecs_locl.h ecs_sign.c
129ecs_vrf.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
130ecs_vrf.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
131ecs_vrf.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
132ecs_vrf.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
133ecs_vrf.o: ../../include/openssl/engine.h ../../include/openssl/evp.h
134ecs_vrf.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
135ecs_vrf.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
136ecs_vrf.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
137ecs_vrf.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
138ecs_vrf.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
139ecs_vrf.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
140ecs_vrf.o: ../../include/openssl/x509_vfy.h ecs_locl.h ecs_vrf.c
diff --git a/src/lib/libcrypto/ecdsa/ecdsa.h b/src/lib/libcrypto/ecdsa/ecdsa.h
new file mode 100644
index 0000000000..7fb5254b62
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecdsa.h
@@ -0,0 +1,260 @@
1/* crypto/ecdsa/ecdsa.h */
2/**
3 * \file crypto/ecdsa/ecdsa.h Include file for the OpenSSL ECDSA functions
4 * \author Written by Nils Larsch for the OpenSSL project
5 */
6/* ====================================================================
7 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
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
19 * distribution.
20 *
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/)"
25 *
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.
30 *
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.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
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 * ====================================================================
53 *
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).
57 *
58 */
59#ifndef HEADER_ECDSA_H
60#define HEADER_ECDSA_H
61
62#include <openssl/opensslconf.h>
63
64#ifdef OPENSSL_NO_ECDSA
65#error ECDSA is disabled.
66#endif
67
68#include <openssl/ec.h>
69#include <openssl/ossl_typ.h>
70#ifndef OPENSSL_NO_DEPRECATED
71#include <openssl/bn.h>
72#endif
73
74#ifdef __cplusplus
75extern "C" {
76#endif
77
78typedef struct ECDSA_SIG_st
79 {
80 BIGNUM *r;
81 BIGNUM *s;
82 } ECDSA_SIG;
83
84/** Allocates and initialize a ECDSA_SIG structure
85 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
86 */
87ECDSA_SIG *ECDSA_SIG_new(void);
88
89/** frees a ECDSA_SIG structure
90 * \param sig pointer to the ECDSA_SIG structure
91 */
92void ECDSA_SIG_free(ECDSA_SIG *sig);
93
94/** DER encode content of ECDSA_SIG object (note: this function modifies *pp
95 * (*pp += length of the DER encoded signature)).
96 * \param sig pointer to the ECDSA_SIG object
97 * \param pp pointer to a unsigned char pointer for the output or NULL
98 * \return the length of the DER encoded ECDSA_SIG object or 0
99 */
100int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);
101
102/** Decodes a DER encoded ECDSA signature (note: this function changes *pp
103 * (*pp += len)).
104 * \param sig pointer to ECDSA_SIG pointer (may be NULL)
105 * \param pp memory buffer with the DER encoded signature
106 * \param len length of the buffer
107 * \return pointer to the decoded ECDSA_SIG structure (or NULL)
108 */
109ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);
110
111/** Computes the ECDSA signature of the given hash value using
112 * the supplied private key and returns the created signature.
113 * \param dgst pointer to the hash value
114 * \param dgst_len length of the hash value
115 * \param eckey EC_KEY object containing a private EC key
116 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
117 */
118ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,int dgst_len,EC_KEY *eckey);
119
120/** Computes ECDSA signature of a given hash value using the supplied
121 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
122 * \param dgst pointer to the hash value to sign
123 * \param dgstlen length of the hash value
124 * \param kinv BIGNUM with a pre-computed inverse k (optional)
125 * \param rp BIGNUM with a pre-computed rp value (optioanl),
126 * see ECDSA_sign_setup
127 * \param eckey EC_KEY object containing a private EC key
128 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
129 */
130ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen,
131 const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey);
132
133/** Verifies that the supplied signature is a valid ECDSA
134 * signature of the supplied hash value using the supplied public key.
135 * \param dgst pointer to the hash value
136 * \param dgst_len length of the hash value
137 * \param sig ECDSA_SIG structure
138 * \param eckey EC_KEY object containing a public EC key
139 * \return 1 if the signature is valid, 0 if the signature is invalid
140 * and -1 on error
141 */
142int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
143 const ECDSA_SIG *sig, EC_KEY* eckey);
144
145const ECDSA_METHOD *ECDSA_OpenSSL(void);
146
147/** Sets the default ECDSA method
148 * \param meth new default ECDSA_METHOD
149 */
150void ECDSA_set_default_method(const ECDSA_METHOD *meth);
151
152/** Returns the default ECDSA method
153 * \return pointer to ECDSA_METHOD structure containing the default method
154 */
155const ECDSA_METHOD *ECDSA_get_default_method(void);
156
157/** Sets method to be used for the ECDSA operations
158 * \param eckey EC_KEY object
159 * \param meth new method
160 * \return 1 on success and 0 otherwise
161 */
162int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth);
163
164/** Returns the maximum length of the DER encoded signature
165 * \param eckey EC_KEY object
166 * \return numbers of bytes required for the DER encoded signature
167 */
168int ECDSA_size(const EC_KEY *eckey);
169
170/** Precompute parts of the signing operation
171 * \param eckey EC_KEY object containing a private EC key
172 * \param ctx BN_CTX object (optional)
173 * \param kinv BIGNUM pointer for the inverse of k
174 * \param rp BIGNUM pointer for x coordinate of k * generator
175 * \return 1 on success and 0 otherwise
176 */
177int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
178 BIGNUM **rp);
179
180/** Computes ECDSA signature of a given hash value using the supplied
181 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
182 * \param type this parameter is ignored
183 * \param dgst pointer to the hash value to sign
184 * \param dgstlen length of the hash value
185 * \param sig memory for the DER encoded created signature
186 * \param siglen pointer to the length of the returned signature
187 * \param eckey EC_KEY object containing a private EC key
188 * \return 1 on success and 0 otherwise
189 */
190int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen,
191 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
192
193
194/** Computes ECDSA signature of a given hash value using the supplied
195 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
196 * \param type this parameter is ignored
197 * \param dgst pointer to the hash value to sign
198 * \param dgstlen length of the hash value
199 * \param sig buffer to hold the DER encoded signature
200 * \param siglen pointer to the length of the returned signature
201 * \param kinv BIGNUM with a pre-computed inverse k (optional)
202 * \param rp BIGNUM with a pre-computed rp value (optioanl),
203 * see ECDSA_sign_setup
204 * \param eckey EC_KEY object containing a private EC key
205 * \return 1 on success and 0 otherwise
206 */
207int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen,
208 unsigned char *sig, unsigned int *siglen, const BIGNUM *kinv,
209 const BIGNUM *rp, EC_KEY *eckey);
210
211/** Verifies that the given signature is valid ECDSA signature
212 * of the supplied hash value using the specified public key.
213 * \param type this parameter is ignored
214 * \param dgst pointer to the hash value
215 * \param dgstlen length of the hash value
216 * \param sig pointer to the DER encoded signature
217 * \param siglen length of the DER encoded signature
218 * \param eckey EC_KEY object containing a public EC key
219 * \return 1 if the signature is valid, 0 if the signature is invalid
220 * and -1 on error
221 */
222int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen,
223 const unsigned char *sig, int siglen, EC_KEY *eckey);
224
225/* the standard ex_data functions */
226int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
227 *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
228int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg);
229void *ECDSA_get_ex_data(EC_KEY *d, int idx);
230
231
232/* BEGIN ERROR CODES */
233/* The following lines are auto generated by the script mkerr.pl. Any changes
234 * made after this point may be overwritten when the script is next run.
235 */
236void ERR_load_ECDSA_strings(void);
237
238/* Error codes for the ECDSA functions. */
239
240/* Function codes. */
241#define ECDSA_F_ECDSA_CHECK 104
242#define ECDSA_F_ECDSA_DATA_NEW_METHOD 100
243#define ECDSA_F_ECDSA_DO_SIGN 101
244#define ECDSA_F_ECDSA_DO_VERIFY 102
245#define ECDSA_F_ECDSA_SIGN_SETUP 103
246
247/* Reason codes. */
248#define ECDSA_R_BAD_SIGNATURE 100
249#define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101
250#define ECDSA_R_ERR_EC_LIB 102
251#define ECDSA_R_MISSING_PARAMETERS 103
252#define ECDSA_R_NEED_NEW_SETUP_VALUES 106
253#define ECDSA_R_NON_FIPS_METHOD 107
254#define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104
255#define ECDSA_R_SIGNATURE_MALLOC_FAILED 105
256
257#ifdef __cplusplus
258}
259#endif
260#endif
diff --git a/src/lib/libcrypto/ecdsa/ecdsatest.c b/src/lib/libcrypto/ecdsa/ecdsatest.c
new file mode 100644
index 0000000000..537bb30362
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecdsatest.c
@@ -0,0 +1,572 @@
1/* crypto/ecdsa/ecdsatest.c */
2/*
3 * Written by Nils Larsch for the OpenSSL project.
4 */
5/* ====================================================================
6 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58/* ====================================================================
59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60 *
61 * Portions of the attached software ("Contribution") are developed by
62 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
63 *
64 * The Contribution is licensed pursuant to the OpenSSL open source
65 * license provided above.
66 *
67 * The elliptic curve binary polynomial software is originally written by
68 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
69 *
70 */
71
72#include <stdio.h>
73#include <stdlib.h>
74#include <string.h>
75
76#include <openssl/opensslconf.h> /* To see if OPENSSL_NO_ECDSA is defined */
77
78#ifdef OPENSSL_NO_ECDSA
79int main(int argc, char * argv[])
80 {
81 puts("Elliptic curves are disabled.");
82 return 0;
83 }
84#else
85
86#include <openssl/crypto.h>
87#include <openssl/bio.h>
88#include <openssl/evp.h>
89#include <openssl/bn.h>
90#include <openssl/ecdsa.h>
91#ifndef OPENSSL_NO_ENGINE
92#include <openssl/engine.h>
93#endif
94#include <openssl/err.h>
95#include <openssl/rand.h>
96
97static const char rnd_seed[] = "string to make the random number generator "
98 "think it has entropy";
99
100/* declaration of the test functions */
101int x9_62_tests(BIO *);
102int x9_62_test_internal(BIO *out, int nid, const char *r, const char *s);
103int test_builtin(BIO *);
104
105/* functions to change the RAND_METHOD */
106int change_rand(void);
107int restore_rand(void);
108int fbytes(unsigned char *buf, int num);
109
110RAND_METHOD fake_rand;
111const RAND_METHOD *old_rand;
112
113int change_rand(void)
114 {
115 /* save old rand method */
116 if ((old_rand = RAND_get_rand_method()) == NULL)
117 return 0;
118
119 fake_rand.seed = old_rand->seed;
120 fake_rand.cleanup = old_rand->cleanup;
121 fake_rand.add = old_rand->add;
122 fake_rand.status = old_rand->status;
123 /* use own random function */
124 fake_rand.bytes = fbytes;
125 fake_rand.pseudorand = old_rand->bytes;
126 /* set new RAND_METHOD */
127 if (!RAND_set_rand_method(&fake_rand))
128 return 0;
129 return 1;
130 }
131
132int restore_rand(void)
133 {
134 if (!RAND_set_rand_method(old_rand))
135 return 0;
136 else
137 return 1;
138 }
139
140static int fbytes_counter = 0;
141static const char *numbers[8] = {
142 "651056770906015076056810763456358567190100156695615665659",
143 "6140507067065001063065065565667405560006161556565665656654",
144 "8763001015071075675010661307616710783570106710677817767166"
145 "71676178726717",
146 "7000000175690566466555057817571571075705015757757057795755"
147 "55657156756655",
148 "1275552191113212300012030439187146164646146646466749494799",
149 "1542725565216523985789236956265265265235675811949404040041",
150 "1456427555219115346513212300075341203043918714616464614664"
151 "64667494947990",
152 "1712787255652165239672857892369562652652652356758119494040"
153 "40041670216363"};
154
155int fbytes(unsigned char *buf, int num)
156 {
157 int ret;
158 BIGNUM *tmp = NULL;
159
160 if (fbytes_counter >= 8)
161 return 0;
162 tmp = BN_new();
163 if (!tmp)
164 return 0;
165 if (!BN_dec2bn(&tmp, numbers[fbytes_counter]))
166 {
167 BN_free(tmp);
168 return 0;
169 }
170 fbytes_counter ++;
171 if (num != BN_num_bytes(tmp) || !BN_bn2bin(tmp, buf))
172 ret = 0;
173 else
174 ret = 1;
175 if (tmp)
176 BN_free(tmp);
177 return ret;
178 }
179
180/* some tests from the X9.62 draft */
181int x9_62_test_internal(BIO *out, int nid, const char *r_in, const char *s_in)
182 {
183 int ret = 0;
184 const char message[] = "abc";
185 unsigned char digest[20];
186 unsigned int dgst_len = 0;
187 EVP_MD_CTX md_ctx;
188 EC_KEY *key = NULL;
189 ECDSA_SIG *signature = NULL;
190 BIGNUM *r = NULL, *s = NULL;
191
192 EVP_MD_CTX_init(&md_ctx);
193 /* get the message digest */
194 EVP_DigestInit(&md_ctx, EVP_ecdsa());
195 EVP_DigestUpdate(&md_ctx, (const void*)message, 3);
196 EVP_DigestFinal(&md_ctx, digest, &dgst_len);
197
198 BIO_printf(out, "testing %s: ", OBJ_nid2sn(nid));
199 /* create the key */
200 if ((key = EC_KEY_new_by_curve_name(nid)) == NULL)
201 goto x962_int_err;
202 if (!EC_KEY_generate_key(key))
203 goto x962_int_err;
204 BIO_printf(out, ".");
205 (void)BIO_flush(out);
206 /* create the signature */
207 signature = ECDSA_do_sign(digest, 20, key);
208 if (signature == NULL)
209 goto x962_int_err;
210 BIO_printf(out, ".");
211 (void)BIO_flush(out);
212 /* compare the created signature with the expected signature */
213 if ((r = BN_new()) == NULL || (s = BN_new()) == NULL)
214 goto x962_int_err;
215 if (!BN_dec2bn(&r, r_in) ||
216 !BN_dec2bn(&s, s_in))
217 goto x962_int_err;
218 if (BN_cmp(signature->r ,r) || BN_cmp(signature->s, s))
219 goto x962_int_err;
220 BIO_printf(out, ".");
221 (void)BIO_flush(out);
222 /* verify the signature */
223 if (ECDSA_do_verify(digest, 20, signature, key) != 1)
224 goto x962_int_err;
225 BIO_printf(out, ".");
226 (void)BIO_flush(out);
227
228 BIO_printf(out, " ok\n");
229 ret = 1;
230x962_int_err:
231 if (!ret)
232 BIO_printf(out, " failed\n");
233 if (key)
234 EC_KEY_free(key);
235 if (signature)
236 ECDSA_SIG_free(signature);
237 if (r)
238 BN_free(r);
239 if (s)
240 BN_free(s);
241 EVP_MD_CTX_cleanup(&md_ctx);
242 return ret;
243 }
244
245int x9_62_tests(BIO *out)
246 {
247 int ret = 0;
248
249 BIO_printf(out, "some tests from X9.62:\n");
250
251 /* set own rand method */
252 if (!change_rand())
253 goto x962_err;
254
255 if (!x9_62_test_internal(out, NID_X9_62_prime192v1,
256 "3342403536405981729393488334694600415596881826869351677613",
257 "5735822328888155254683894997897571951568553642892029982342"))
258 goto x962_err;
259 if (!x9_62_test_internal(out, NID_X9_62_prime239v1,
260 "3086361431751678114926225473006680188549593787585317781474"
261 "62058306432176",
262 "3238135532097973577080787768312505059318910517550078427819"
263 "78505179448783"))
264 goto x962_err;
265#ifndef OPENSSL_NO_EC2M
266 if (!x9_62_test_internal(out, NID_X9_62_c2tnb191v1,
267 "87194383164871543355722284926904419997237591535066528048",
268 "308992691965804947361541664549085895292153777025772063598"))
269 goto x962_err;
270 if (!x9_62_test_internal(out, NID_X9_62_c2tnb239v1,
271 "2159633321041961198501834003903461262881815148684178964245"
272 "5876922391552",
273 "1970303740007316867383349976549972270528498040721988191026"
274 "49413465737174"))
275 goto x962_err;
276#endif
277 ret = 1;
278x962_err:
279 if (!restore_rand())
280 ret = 0;
281 return ret;
282 }
283
284int test_builtin(BIO *out)
285 {
286 EC_builtin_curve *curves = NULL;
287 size_t crv_len = 0, n = 0;
288 EC_KEY *eckey = NULL, *wrong_eckey = NULL;
289 EC_GROUP *group;
290 ECDSA_SIG *ecdsa_sig = NULL;
291 unsigned char digest[20], wrong_digest[20];
292 unsigned char *signature = NULL;
293 const unsigned char *sig_ptr;
294 unsigned char *sig_ptr2;
295 unsigned char *raw_buf = NULL;
296 unsigned int sig_len, degree, r_len, s_len, bn_len, buf_len;
297 int nid, ret = 0;
298
299 /* fill digest values with some random data */
300 if (!RAND_pseudo_bytes(digest, 20) ||
301 !RAND_pseudo_bytes(wrong_digest, 20))
302 {
303 BIO_printf(out, "ERROR: unable to get random data\n");
304 goto builtin_err;
305 }
306
307 /* create and verify a ecdsa signature with every availble curve
308 * (with ) */
309 BIO_printf(out, "\ntesting ECDSA_sign() and ECDSA_verify() "
310 "with some internal curves:\n");
311
312 /* get a list of all internal curves */
313 crv_len = EC_get_builtin_curves(NULL, 0);
314
315 curves = OPENSSL_malloc(sizeof(EC_builtin_curve) * crv_len);
316
317 if (curves == NULL)
318 {
319 BIO_printf(out, "malloc error\n");
320 goto builtin_err;
321 }
322
323 if (!EC_get_builtin_curves(curves, crv_len))
324 {
325 BIO_printf(out, "unable to get internal curves\n");
326 goto builtin_err;
327 }
328
329 /* now create and verify a signature for every curve */
330 for (n = 0; n < crv_len; n++)
331 {
332 unsigned char dirt, offset;
333
334 nid = curves[n].nid;
335 if (nid == NID_ipsec4)
336 continue;
337 /* create new ecdsa key (== EC_KEY) */
338 if ((eckey = EC_KEY_new()) == NULL)
339 goto builtin_err;
340 group = EC_GROUP_new_by_curve_name(nid);
341 if (group == NULL)
342 goto builtin_err;
343 if (EC_KEY_set_group(eckey, group) == 0)
344 goto builtin_err;
345 EC_GROUP_free(group);
346 degree = EC_GROUP_get_degree(EC_KEY_get0_group(eckey));
347 if (degree < 160)
348 /* drop the curve */
349 {
350 EC_KEY_free(eckey);
351 eckey = NULL;
352 continue;
353 }
354 BIO_printf(out, "%s: ", OBJ_nid2sn(nid));
355 /* create key */
356 if (!EC_KEY_generate_key(eckey))
357 {
358 BIO_printf(out, " failed\n");
359 goto builtin_err;
360 }
361 /* create second key */
362 if ((wrong_eckey = EC_KEY_new()) == NULL)
363 goto builtin_err;
364 group = EC_GROUP_new_by_curve_name(nid);
365 if (group == NULL)
366 goto builtin_err;
367 if (EC_KEY_set_group(wrong_eckey, group) == 0)
368 goto builtin_err;
369 EC_GROUP_free(group);
370 if (!EC_KEY_generate_key(wrong_eckey))
371 {
372 BIO_printf(out, " failed\n");
373 goto builtin_err;
374 }
375
376 BIO_printf(out, ".");
377 (void)BIO_flush(out);
378 /* check key */
379 if (!EC_KEY_check_key(eckey))
380 {
381 BIO_printf(out, " failed\n");
382 goto builtin_err;
383 }
384 BIO_printf(out, ".");
385 (void)BIO_flush(out);
386 /* create signature */
387 sig_len = ECDSA_size(eckey);
388 if ((signature = OPENSSL_malloc(sig_len)) == NULL)
389 goto builtin_err;
390 if (!ECDSA_sign(0, digest, 20, signature, &sig_len, eckey))
391 {
392 BIO_printf(out, " failed\n");
393 goto builtin_err;
394 }
395 BIO_printf(out, ".");
396 (void)BIO_flush(out);
397 /* verify signature */
398 if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) != 1)
399 {
400 BIO_printf(out, " failed\n");
401 goto builtin_err;
402 }
403 BIO_printf(out, ".");
404 (void)BIO_flush(out);
405 /* verify signature with the wrong key */
406 if (ECDSA_verify(0, digest, 20, signature, sig_len,
407 wrong_eckey) == 1)
408 {
409 BIO_printf(out, " failed\n");
410 goto builtin_err;
411 }
412 BIO_printf(out, ".");
413 (void)BIO_flush(out);
414 /* wrong digest */
415 if (ECDSA_verify(0, wrong_digest, 20, signature, sig_len,
416 eckey) == 1)
417 {
418 BIO_printf(out, " failed\n");
419 goto builtin_err;
420 }
421 BIO_printf(out, ".");
422 (void)BIO_flush(out);
423 /* wrong length */
424 if (ECDSA_verify(0, digest, 20, signature, sig_len - 1,
425 eckey) == 1)
426 {
427 BIO_printf(out, " failed\n");
428 goto builtin_err;
429 }
430 BIO_printf(out, ".");
431 (void)BIO_flush(out);
432
433 /* Modify a single byte of the signature: to ensure we don't
434 * garble the ASN1 structure, we read the raw signature and
435 * modify a byte in one of the bignums directly. */
436 sig_ptr = signature;
437 if ((ecdsa_sig = d2i_ECDSA_SIG(NULL, &sig_ptr, sig_len)) == NULL)
438 {
439 BIO_printf(out, " failed\n");
440 goto builtin_err;
441 }
442
443 /* Store the two BIGNUMs in raw_buf. */
444 r_len = BN_num_bytes(ecdsa_sig->r);
445 s_len = BN_num_bytes(ecdsa_sig->s);
446 bn_len = (degree + 7) / 8;
447 if ((r_len > bn_len) || (s_len > bn_len))
448 {
449 BIO_printf(out, " failed\n");
450 goto builtin_err;
451 }
452 buf_len = 2 * bn_len;
453 if ((raw_buf = OPENSSL_malloc(buf_len)) == NULL)
454 goto builtin_err;
455 /* Pad the bignums with leading zeroes. */
456 memset(raw_buf, 0, buf_len);
457 BN_bn2bin(ecdsa_sig->r, raw_buf + bn_len - r_len);
458 BN_bn2bin(ecdsa_sig->s, raw_buf + buf_len - s_len);
459
460 /* Modify a single byte in the buffer. */
461 offset = raw_buf[10] % buf_len;
462 dirt = raw_buf[11] ? raw_buf[11] : 1;
463 raw_buf[offset] ^= dirt;
464 /* Now read the BIGNUMs back in from raw_buf. */
465 if ((BN_bin2bn(raw_buf, bn_len, ecdsa_sig->r) == NULL) ||
466 (BN_bin2bn(raw_buf + bn_len, bn_len, ecdsa_sig->s) == NULL))
467 goto builtin_err;
468
469 sig_ptr2 = signature;
470 sig_len = i2d_ECDSA_SIG(ecdsa_sig, &sig_ptr2);
471 if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) == 1)
472 {
473 BIO_printf(out, " failed\n");
474 goto builtin_err;
475 }
476 /* Sanity check: undo the modification and verify signature. */
477 raw_buf[offset] ^= dirt;
478 if ((BN_bin2bn(raw_buf, bn_len, ecdsa_sig->r) == NULL) ||
479 (BN_bin2bn(raw_buf + bn_len, bn_len, ecdsa_sig->s) == NULL))
480 goto builtin_err;
481
482 sig_ptr2 = signature;
483 sig_len = i2d_ECDSA_SIG(ecdsa_sig, &sig_ptr2);
484 if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) != 1)
485 {
486 BIO_printf(out, " failed\n");
487 goto builtin_err;
488 }
489 BIO_printf(out, ".");
490 (void)BIO_flush(out);
491
492 BIO_printf(out, " ok\n");
493 /* cleanup */
494 /* clean bogus errors */
495 ERR_clear_error();
496 OPENSSL_free(signature);
497 signature = NULL;
498 EC_KEY_free(eckey);
499 eckey = NULL;
500 EC_KEY_free(wrong_eckey);
501 wrong_eckey = NULL;
502 ECDSA_SIG_free(ecdsa_sig);
503 ecdsa_sig = NULL;
504 OPENSSL_free(raw_buf);
505 raw_buf = NULL;
506 }
507
508 ret = 1;
509builtin_err:
510 if (eckey)
511 EC_KEY_free(eckey);
512 if (wrong_eckey)
513 EC_KEY_free(wrong_eckey);
514 if (ecdsa_sig)
515 ECDSA_SIG_free(ecdsa_sig);
516 if (signature)
517 OPENSSL_free(signature);
518 if (raw_buf)
519 OPENSSL_free(raw_buf);
520 if (curves)
521 OPENSSL_free(curves);
522
523 return ret;
524 }
525
526int main(void)
527 {
528 int ret = 1;
529 BIO *out;
530
531 out = BIO_new_fp(stdout, BIO_NOCLOSE);
532
533 /* enable memory leak checking unless explicitly disabled */
534 if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) &&
535 (0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off"))))
536 {
537 CRYPTO_malloc_debug_init();
538 CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
539 }
540 else
541 {
542 /* OPENSSL_DEBUG_MEMORY=off */
543 CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
544 }
545 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
546
547 ERR_load_crypto_strings();
548
549 /* initialize the prng */
550 RAND_seed(rnd_seed, sizeof(rnd_seed));
551
552 /* the tests */
553 if (!x9_62_tests(out)) goto err;
554 if (!test_builtin(out)) goto err;
555
556 ret = 0;
557err:
558 if (ret)
559 BIO_printf(out, "\nECDSA test failed\n");
560 else
561 BIO_printf(out, "\nECDSA test passed\n");
562 if (ret)
563 ERR_print_errors(out);
564 CRYPTO_cleanup_all_ex_data();
565 ERR_remove_thread_state(NULL);
566 ERR_free_strings();
567 CRYPTO_mem_leaks(out);
568 if (out != NULL)
569 BIO_free(out);
570 return ret;
571 }
572#endif
diff --git a/src/lib/libcrypto/ecdsa/ecs_asn1.c b/src/lib/libcrypto/ecdsa/ecs_asn1.c
new file mode 100644
index 0000000000..b295489400
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_asn1.c
@@ -0,0 +1,67 @@
1/* crypto/ecdsa/ecs_asn1.c */
2/* ====================================================================
3 * Copyright (c) 2000-2002 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 * licensing@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 */
55
56#include "ecs_locl.h"
57#include <openssl/err.h>
58#include <openssl/asn1t.h>
59
60ASN1_SEQUENCE(ECDSA_SIG) = {
61 ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM),
62 ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM)
63} ASN1_SEQUENCE_END(ECDSA_SIG)
64
65DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG)
66DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG)
67IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG)
diff --git a/src/lib/libcrypto/ecdsa/ecs_err.c b/src/lib/libcrypto/ecdsa/ecs_err.c
new file mode 100644
index 0000000000..81542e6d15
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_err.c
@@ -0,0 +1,106 @@
1/* crypto/ecdsa/ecs_err.c */
2/* ====================================================================
3 * Copyright (c) 1999-2011 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 */
55
56/* NOTE: this file was auto generated by the mkerr.pl script: any changes
57 * made to it will be overwritten when the script next updates this file,
58 * only reason strings will be preserved.
59 */
60
61#include <stdio.h>
62#include <openssl/err.h>
63#include <openssl/ecdsa.h>
64
65/* BEGIN ERROR CODES */
66#ifndef OPENSSL_NO_ERR
67
68#define ERR_FUNC(func) ERR_PACK(ERR_LIB_ECDSA,func,0)
69#define ERR_REASON(reason) ERR_PACK(ERR_LIB_ECDSA,0,reason)
70
71static ERR_STRING_DATA ECDSA_str_functs[]=
72 {
73{ERR_FUNC(ECDSA_F_ECDSA_CHECK), "ECDSA_CHECK"},
74{ERR_FUNC(ECDSA_F_ECDSA_DATA_NEW_METHOD), "ECDSA_DATA_NEW_METHOD"},
75{ERR_FUNC(ECDSA_F_ECDSA_DO_SIGN), "ECDSA_do_sign"},
76{ERR_FUNC(ECDSA_F_ECDSA_DO_VERIFY), "ECDSA_do_verify"},
77{ERR_FUNC(ECDSA_F_ECDSA_SIGN_SETUP), "ECDSA_sign_setup"},
78{0,NULL}
79 };
80
81static ERR_STRING_DATA ECDSA_str_reasons[]=
82 {
83{ERR_REASON(ECDSA_R_BAD_SIGNATURE) ,"bad signature"},
84{ERR_REASON(ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE),"data too large for key size"},
85{ERR_REASON(ECDSA_R_ERR_EC_LIB) ,"err ec lib"},
86{ERR_REASON(ECDSA_R_MISSING_PARAMETERS) ,"missing parameters"},
87{ERR_REASON(ECDSA_R_NEED_NEW_SETUP_VALUES),"need new setup values"},
88{ERR_REASON(ECDSA_R_NON_FIPS_METHOD) ,"non fips method"},
89{ERR_REASON(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED),"random number generation failed"},
90{ERR_REASON(ECDSA_R_SIGNATURE_MALLOC_FAILED),"signature malloc failed"},
91{0,NULL}
92 };
93
94#endif
95
96void ERR_load_ECDSA_strings(void)
97 {
98#ifndef OPENSSL_NO_ERR
99
100 if (ERR_func_error_string(ECDSA_str_functs[0].error) == NULL)
101 {
102 ERR_load_strings(0,ECDSA_str_functs);
103 ERR_load_strings(0,ECDSA_str_reasons);
104 }
105#endif
106 }
diff --git a/src/lib/libcrypto/ecdsa/ecs_lib.c b/src/lib/libcrypto/ecdsa/ecs_lib.c
new file mode 100644
index 0000000000..e477da430b
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_lib.c
@@ -0,0 +1,278 @@
1/* crypto/ecdsa/ecs_lib.c */
2/* ====================================================================
3 * Copyright (c) 1998-2005 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 */
55
56#include <string.h>
57#include "ecs_locl.h"
58#ifndef OPENSSL_NO_ENGINE
59#include <openssl/engine.h>
60#endif
61#include <openssl/err.h>
62#include <openssl/bn.h>
63#ifdef OPENSSL_FIPS
64#include <openssl/fips.h>
65#endif
66
67const char ECDSA_version[]="ECDSA" OPENSSL_VERSION_PTEXT;
68
69static const ECDSA_METHOD *default_ECDSA_method = NULL;
70
71static void *ecdsa_data_new(void);
72static void *ecdsa_data_dup(void *);
73static void ecdsa_data_free(void *);
74
75void ECDSA_set_default_method(const ECDSA_METHOD *meth)
76{
77 default_ECDSA_method = meth;
78}
79
80const ECDSA_METHOD *ECDSA_get_default_method(void)
81{
82 if(!default_ECDSA_method)
83 {
84#ifdef OPENSSL_FIPS
85 if (FIPS_mode())
86 return FIPS_ecdsa_openssl();
87 else
88 return ECDSA_OpenSSL();
89#else
90 default_ECDSA_method = ECDSA_OpenSSL();
91#endif
92 }
93 return default_ECDSA_method;
94}
95
96int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth)
97{
98 ECDSA_DATA *ecdsa;
99
100 ecdsa = ecdsa_check(eckey);
101
102 if (ecdsa == NULL)
103 return 0;
104
105#ifndef OPENSSL_NO_ENGINE
106 if (ecdsa->engine)
107 {
108 ENGINE_finish(ecdsa->engine);
109 ecdsa->engine = NULL;
110 }
111#endif
112 ecdsa->meth = meth;
113
114 return 1;
115}
116
117static ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *engine)
118{
119 ECDSA_DATA *ret;
120
121 ret=(ECDSA_DATA *)OPENSSL_malloc(sizeof(ECDSA_DATA));
122 if (ret == NULL)
123 {
124 ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
125 return(NULL);
126 }
127
128 ret->init = NULL;
129
130 ret->meth = ECDSA_get_default_method();
131 ret->engine = engine;
132#ifndef OPENSSL_NO_ENGINE
133 if (!ret->engine)
134 ret->engine = ENGINE_get_default_ECDSA();
135 if (ret->engine)
136 {
137 ret->meth = ENGINE_get_ECDSA(ret->engine);
138 if (!ret->meth)
139 {
140 ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_ENGINE_LIB);
141 ENGINE_finish(ret->engine);
142 OPENSSL_free(ret);
143 return NULL;
144 }
145 }
146#endif
147
148 ret->flags = ret->meth->flags;
149 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data);
150#if 0
151 if ((ret->meth->init != NULL) && !ret->meth->init(ret))
152 {
153 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data);
154 OPENSSL_free(ret);
155 ret=NULL;
156 }
157#endif
158 return(ret);
159}
160
161static void *ecdsa_data_new(void)
162{
163 return (void *)ECDSA_DATA_new_method(NULL);
164}
165
166static void *ecdsa_data_dup(void *data)
167{
168 ECDSA_DATA *r = (ECDSA_DATA *)data;
169
170 /* XXX: dummy operation */
171 if (r == NULL)
172 return NULL;
173
174 return ecdsa_data_new();
175}
176
177static void ecdsa_data_free(void *data)
178{
179 ECDSA_DATA *r = (ECDSA_DATA *)data;
180
181#ifndef OPENSSL_NO_ENGINE
182 if (r->engine)
183 ENGINE_finish(r->engine);
184#endif
185 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, r, &r->ex_data);
186
187 OPENSSL_cleanse((void *)r, sizeof(ECDSA_DATA));
188
189 OPENSSL_free(r);
190}
191
192ECDSA_DATA *ecdsa_check(EC_KEY *key)
193{
194 ECDSA_DATA *ecdsa_data;
195
196 void *data = EC_KEY_get_key_method_data(key, ecdsa_data_dup,
197 ecdsa_data_free, ecdsa_data_free);
198 if (data == NULL)
199 {
200 ecdsa_data = (ECDSA_DATA *)ecdsa_data_new();
201 if (ecdsa_data == NULL)
202 return NULL;
203 EC_KEY_insert_key_method_data(key, (void *)ecdsa_data,
204 ecdsa_data_dup, ecdsa_data_free, ecdsa_data_free);
205 }
206 else
207 ecdsa_data = (ECDSA_DATA *)data;
208#ifdef OPENSSL_FIPS
209 if (FIPS_mode() && !(ecdsa_data->flags & ECDSA_FLAG_FIPS_METHOD)
210 && !(EC_KEY_get_flags(key) & EC_FLAG_NON_FIPS_ALLOW))
211 {
212 ECDSAerr(ECDSA_F_ECDSA_CHECK, ECDSA_R_NON_FIPS_METHOD);
213 return NULL;
214 }
215#endif
216
217 return ecdsa_data;
218}
219
220int ECDSA_size(const EC_KEY *r)
221{
222 int ret,i;
223 ASN1_INTEGER bs;
224 BIGNUM *order=NULL;
225 unsigned char buf[4];
226 const EC_GROUP *group;
227
228 if (r == NULL)
229 return 0;
230 group = EC_KEY_get0_group(r);
231 if (group == NULL)
232 return 0;
233
234 if ((order = BN_new()) == NULL) return 0;
235 if (!EC_GROUP_get_order(group,order,NULL))
236 {
237 BN_clear_free(order);
238 return 0;
239 }
240 i=BN_num_bits(order);
241 bs.length=(i+7)/8;
242 bs.data=buf;
243 bs.type=V_ASN1_INTEGER;
244 /* If the top bit is set the asn1 encoding is 1 larger. */
245 buf[0]=0xff;
246
247 i=i2d_ASN1_INTEGER(&bs,NULL);
248 i+=i; /* r and s */
249 ret=ASN1_object_size(1,i,V_ASN1_SEQUENCE);
250 BN_clear_free(order);
251 return(ret);
252}
253
254
255int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
256 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
257{
258 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDSA, argl, argp,
259 new_func, dup_func, free_func);
260}
261
262int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg)
263{
264 ECDSA_DATA *ecdsa;
265 ecdsa = ecdsa_check(d);
266 if (ecdsa == NULL)
267 return 0;
268 return(CRYPTO_set_ex_data(&ecdsa->ex_data,idx,arg));
269}
270
271void *ECDSA_get_ex_data(EC_KEY *d, int idx)
272{
273 ECDSA_DATA *ecdsa;
274 ecdsa = ecdsa_check(d);
275 if (ecdsa == NULL)
276 return NULL;
277 return(CRYPTO_get_ex_data(&ecdsa->ex_data,idx));
278}
diff --git a/src/lib/libcrypto/ecdsa/ecs_locl.h b/src/lib/libcrypto/ecdsa/ecs_locl.h
new file mode 100644
index 0000000000..cb3be13cfc
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_locl.h
@@ -0,0 +1,115 @@
1/* crypto/ecdsa/ecs_locl.h */
2/*
3 * Written by Nils Larsch for the OpenSSL project
4 */
5/* ====================================================================
6 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#ifndef HEADER_ECS_LOCL_H
60#define HEADER_ECS_LOCL_H
61
62#include <openssl/ecdsa.h>
63
64#ifdef __cplusplus
65extern "C" {
66#endif
67
68struct ecdsa_method
69 {
70 const char *name;
71 ECDSA_SIG *(*ecdsa_do_sign)(const unsigned char *dgst, int dgst_len,
72 const BIGNUM *inv, const BIGNUM *rp, EC_KEY *eckey);
73 int (*ecdsa_sign_setup)(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
74 BIGNUM **r);
75 int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len,
76 const ECDSA_SIG *sig, EC_KEY *eckey);
77#if 0
78 int (*init)(EC_KEY *eckey);
79 int (*finish)(EC_KEY *eckey);
80#endif
81 int flags;
82 char *app_data;
83 };
84
85/* If this flag is set the ECDSA method is FIPS compliant and can be used
86 * in FIPS mode. This is set in the validated module method. If an
87 * application sets this flag in its own methods it is its responsibility
88 * to ensure the result is compliant.
89 */
90
91#define ECDSA_FLAG_FIPS_METHOD 0x1
92
93typedef struct ecdsa_data_st {
94 /* EC_KEY_METH_DATA part */
95 int (*init)(EC_KEY *);
96 /* method (ECDSA) specific part */
97 ENGINE *engine;
98 int flags;
99 const ECDSA_METHOD *meth;
100 CRYPTO_EX_DATA ex_data;
101} ECDSA_DATA;
102
103/** ecdsa_check
104 * checks whether ECKEY->meth_data is a pointer to a ECDSA_DATA structure
105 * and if not it removes the old meth_data and creates a ECDSA_DATA structure.
106 * \param eckey pointer to a EC_KEY object
107 * \return pointer to a ECDSA_DATA structure
108 */
109ECDSA_DATA *ecdsa_check(EC_KEY *eckey);
110
111#ifdef __cplusplus
112}
113#endif
114
115#endif /* HEADER_ECS_LOCL_H */
diff --git a/src/lib/libcrypto/ecdsa/ecs_ossl.c b/src/lib/libcrypto/ecdsa/ecs_ossl.c
new file mode 100644
index 0000000000..7725935610
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_ossl.c
@@ -0,0 +1,483 @@
1/* crypto/ecdsa/ecs_ossl.c */
2/*
3 * Written by Nils Larsch for the OpenSSL project
4 */
5/* ====================================================================
6 * Copyright (c) 1998-2004 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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 * openssl-core@OpenSSL.org.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#include "ecs_locl.h"
60#include <openssl/err.h>
61#include <openssl/obj_mac.h>
62#include <openssl/bn.h>
63
64static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dlen,
65 const BIGNUM *, const BIGNUM *, EC_KEY *eckey);
66static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
67 BIGNUM **rp);
68static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len,
69 const ECDSA_SIG *sig, EC_KEY *eckey);
70
71static ECDSA_METHOD openssl_ecdsa_meth = {
72 "OpenSSL ECDSA method",
73 ecdsa_do_sign,
74 ecdsa_sign_setup,
75 ecdsa_do_verify,
76#if 0
77 NULL, /* init */
78 NULL, /* finish */
79#endif
80 0, /* flags */
81 NULL /* app_data */
82};
83
84const ECDSA_METHOD *ECDSA_OpenSSL(void)
85{
86 return &openssl_ecdsa_meth;
87}
88
89static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
90 BIGNUM **rp)
91{
92 BN_CTX *ctx = NULL;
93 BIGNUM *k = NULL, *r = NULL, *order = NULL, *X = NULL;
94 EC_POINT *tmp_point=NULL;
95 const EC_GROUP *group;
96 int ret = 0;
97
98 if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL)
99 {
100 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);
101 return 0;
102 }
103
104 if (ctx_in == NULL)
105 {
106 if ((ctx = BN_CTX_new()) == NULL)
107 {
108 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_MALLOC_FAILURE);
109 return 0;
110 }
111 }
112 else
113 ctx = ctx_in;
114
115 k = BN_new(); /* this value is later returned in *kinvp */
116 r = BN_new(); /* this value is later returned in *rp */
117 order = BN_new();
118 X = BN_new();
119 if (!k || !r || !order || !X)
120 {
121 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
122 goto err;
123 }
124 if ((tmp_point = EC_POINT_new(group)) == NULL)
125 {
126 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
127 goto err;
128 }
129 if (!EC_GROUP_get_order(group, order, ctx))
130 {
131 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
132 goto err;
133 }
134
135 do
136 {
137 /* get random k */
138 do
139 if (!BN_rand_range(k, order))
140 {
141 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
142 ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);
143 goto err;
144 }
145 while (BN_is_zero(k));
146
147 /* We do not want timing information to leak the length of k,
148 * so we compute G*k using an equivalent scalar of fixed
149 * bit-length. */
150
151 if (!BN_add(k, k, order)) goto err;
152 if (BN_num_bits(k) <= BN_num_bits(order))
153 if (!BN_add(k, k, order)) goto err;
154
155 /* compute r the x-coordinate of generator * k */
156 if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx))
157 {
158 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
159 goto err;
160 }
161 if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
162 {
163 if (!EC_POINT_get_affine_coordinates_GFp(group,
164 tmp_point, X, NULL, ctx))
165 {
166 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);
167 goto err;
168 }
169 }
170#ifndef OPENSSL_NO_EC2M
171 else /* NID_X9_62_characteristic_two_field */
172 {
173 if (!EC_POINT_get_affine_coordinates_GF2m(group,
174 tmp_point, X, NULL, ctx))
175 {
176 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);
177 goto err;
178 }
179 }
180#endif
181 if (!BN_nnmod(r, X, order, ctx))
182 {
183 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
184 goto err;
185 }
186 }
187 while (BN_is_zero(r));
188
189 /* compute the inverse of k */
190 if (!BN_mod_inverse(k, k, order, ctx))
191 {
192 ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
193 goto err;
194 }
195 /* clear old values if necessary */
196 if (*rp != NULL)
197 BN_clear_free(*rp);
198 if (*kinvp != NULL)
199 BN_clear_free(*kinvp);
200 /* save the pre-computed values */
201 *rp = r;
202 *kinvp = k;
203 ret = 1;
204err:
205 if (!ret)
206 {
207 if (k != NULL) BN_clear_free(k);
208 if (r != NULL) BN_clear_free(r);
209 }
210 if (ctx_in == NULL)
211 BN_CTX_free(ctx);
212 if (order != NULL)
213 BN_free(order);
214 if (tmp_point != NULL)
215 EC_POINT_free(tmp_point);
216 if (X)
217 BN_clear_free(X);
218 return(ret);
219}
220
221
222static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dgst_len,
223 const BIGNUM *in_kinv, const BIGNUM *in_r, EC_KEY *eckey)
224{
225 int ok = 0, i;
226 BIGNUM *kinv=NULL, *s, *m=NULL,*tmp=NULL,*order=NULL;
227 const BIGNUM *ckinv;
228 BN_CTX *ctx = NULL;
229 const EC_GROUP *group;
230 ECDSA_SIG *ret;
231 ECDSA_DATA *ecdsa;
232 const BIGNUM *priv_key;
233
234 ecdsa = ecdsa_check(eckey);
235 group = EC_KEY_get0_group(eckey);
236 priv_key = EC_KEY_get0_private_key(eckey);
237
238 if (group == NULL || priv_key == NULL || ecdsa == NULL)
239 {
240 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_PASSED_NULL_PARAMETER);
241 return NULL;
242 }
243
244 ret = ECDSA_SIG_new();
245 if (!ret)
246 {
247 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE);
248 return NULL;
249 }
250 s = ret->s;
251
252 if ((ctx = BN_CTX_new()) == NULL || (order = BN_new()) == NULL ||
253 (tmp = BN_new()) == NULL || (m = BN_new()) == NULL)
254 {
255 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE);
256 goto err;
257 }
258
259 if (!EC_GROUP_get_order(group, order, ctx))
260 {
261 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_EC_LIB);
262 goto err;
263 }
264 i = BN_num_bits(order);
265 /* Need to truncate digest if it is too long: first truncate whole
266 * bytes.
267 */
268 if (8 * dgst_len > i)
269 dgst_len = (i + 7)/8;
270 if (!BN_bin2bn(dgst, dgst_len, m))
271 {
272 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
273 goto err;
274 }
275 /* If still too long truncate remaining bits with a shift */
276 if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7)))
277 {
278 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
279 goto err;
280 }
281 do
282 {
283 if (in_kinv == NULL || in_r == NULL)
284 {
285 if (!ECDSA_sign_setup(eckey, ctx, &kinv, &ret->r))
286 {
287 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN,ERR_R_ECDSA_LIB);
288 goto err;
289 }
290 ckinv = kinv;
291 }
292 else
293 {
294 ckinv = in_kinv;
295 if (BN_copy(ret->r, in_r) == NULL)
296 {
297 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE);
298 goto err;
299 }
300 }
301
302 if (!BN_mod_mul(tmp, priv_key, ret->r, order, ctx))
303 {
304 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
305 goto err;
306 }
307 if (!BN_mod_add_quick(s, tmp, m, order))
308 {
309 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
310 goto err;
311 }
312 if (!BN_mod_mul(s, s, ckinv, order, ctx))
313 {
314 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
315 goto err;
316 }
317 if (BN_is_zero(s))
318 {
319 /* if kinv and r have been supplied by the caller
320 * don't to generate new kinv and r values */
321 if (in_kinv != NULL && in_r != NULL)
322 {
323 ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ECDSA_R_NEED_NEW_SETUP_VALUES);
324 goto err;
325 }
326 }
327 else
328 /* s != 0 => we have a valid signature */
329 break;
330 }
331 while (1);
332
333 ok = 1;
334err:
335 if (!ok)
336 {
337 ECDSA_SIG_free(ret);
338 ret = NULL;
339 }
340 if (ctx)
341 BN_CTX_free(ctx);
342 if (m)
343 BN_clear_free(m);
344 if (tmp)
345 BN_clear_free(tmp);
346 if (order)
347 BN_free(order);
348 if (kinv)
349 BN_clear_free(kinv);
350 return ret;
351}
352
353static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len,
354 const ECDSA_SIG *sig, EC_KEY *eckey)
355{
356 int ret = -1, i;
357 BN_CTX *ctx;
358 BIGNUM *order, *u1, *u2, *m, *X;
359 EC_POINT *point = NULL;
360 const EC_GROUP *group;
361 const EC_POINT *pub_key;
362
363 /* check input values */
364 if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL ||
365 (pub_key = EC_KEY_get0_public_key(eckey)) == NULL || sig == NULL)
366 {
367 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_MISSING_PARAMETERS);
368 return -1;
369 }
370
371 ctx = BN_CTX_new();
372 if (!ctx)
373 {
374 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE);
375 return -1;
376 }
377 BN_CTX_start(ctx);
378 order = BN_CTX_get(ctx);
379 u1 = BN_CTX_get(ctx);
380 u2 = BN_CTX_get(ctx);
381 m = BN_CTX_get(ctx);
382 X = BN_CTX_get(ctx);
383 if (!X)
384 {
385 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
386 goto err;
387 }
388
389 if (!EC_GROUP_get_order(group, order, ctx))
390 {
391 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
392 goto err;
393 }
394
395 if (BN_is_zero(sig->r) || BN_is_negative(sig->r) ||
396 BN_ucmp(sig->r, order) >= 0 || BN_is_zero(sig->s) ||
397 BN_is_negative(sig->s) || BN_ucmp(sig->s, order) >= 0)
398 {
399 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_BAD_SIGNATURE);
400 ret = 0; /* signature is invalid */
401 goto err;
402 }
403 /* calculate tmp1 = inv(S) mod order */
404 if (!BN_mod_inverse(u2, sig->s, order, ctx))
405 {
406 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
407 goto err;
408 }
409 /* digest -> m */
410 i = BN_num_bits(order);
411 /* Need to truncate digest if it is too long: first truncate whole
412 * bytes.
413 */
414 if (8 * dgst_len > i)
415 dgst_len = (i + 7)/8;
416 if (!BN_bin2bn(dgst, dgst_len, m))
417 {
418 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
419 goto err;
420 }
421 /* If still too long truncate remaining bits with a shift */
422 if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7)))
423 {
424 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
425 goto err;
426 }
427 /* u1 = m * tmp mod order */
428 if (!BN_mod_mul(u1, m, u2, order, ctx))
429 {
430 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
431 goto err;
432 }
433 /* u2 = r * w mod q */
434 if (!BN_mod_mul(u2, sig->r, u2, order, ctx))
435 {
436 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
437 goto err;
438 }
439
440 if ((point = EC_POINT_new(group)) == NULL)
441 {
442 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE);
443 goto err;
444 }
445 if (!EC_POINT_mul(group, point, u1, pub_key, u2, ctx))
446 {
447 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
448 goto err;
449 }
450 if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
451 {
452 if (!EC_POINT_get_affine_coordinates_GFp(group,
453 point, X, NULL, ctx))
454 {
455 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
456 goto err;
457 }
458 }
459#ifndef OPENSSL_NO_EC2M
460 else /* NID_X9_62_characteristic_two_field */
461 {
462 if (!EC_POINT_get_affine_coordinates_GF2m(group,
463 point, X, NULL, ctx))
464 {
465 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
466 goto err;
467 }
468 }
469#endif
470 if (!BN_nnmod(u1, X, order, ctx))
471 {
472 ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
473 goto err;
474 }
475 /* if the signature is correct u1 is equal to sig->r */
476 ret = (BN_ucmp(u1, sig->r) == 0);
477err:
478 BN_CTX_end(ctx);
479 BN_CTX_free(ctx);
480 if (point)
481 EC_POINT_free(point);
482 return ret;
483}
diff --git a/src/lib/libcrypto/ecdsa/ecs_sign.c b/src/lib/libcrypto/ecdsa/ecs_sign.c
new file mode 100644
index 0000000000..353d5af514
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_sign.c
@@ -0,0 +1,106 @@
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 */
55
56#include "ecs_locl.h"
57#ifndef OPENSSL_NO_ENGINE
58#include <openssl/engine.h>
59#endif
60#include <openssl/rand.h>
61
62ECDSA_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
67ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dlen,
68 const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey)
69{
70 ECDSA_DATA *ecdsa = ecdsa_check(eckey);
71 if (ecdsa == NULL)
72 return NULL;
73 return ecdsa->meth->ecdsa_do_sign(dgst, dlen, kinv, rp, eckey);
74}
75
76int ECDSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char
77 *sig, unsigned int *siglen, EC_KEY *eckey)
78{
79 return ECDSA_sign_ex(type, dgst, dlen, sig, siglen, NULL, NULL, eckey);
80}
81
82int 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)
85{
86 ECDSA_SIG *s;
87 RAND_seed(dgst, dlen);
88 s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey);
89 if (s == NULL)
90 {
91 *siglen=0;
92 return 0;
93 }
94 *siglen = i2d_ECDSA_SIG(s, &sig);
95 ECDSA_SIG_free(s);
96 return 1;
97}
98
99int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
100 BIGNUM **rp)
101{
102 ECDSA_DATA *ecdsa = ecdsa_check(eckey);
103 if (ecdsa == NULL)
104 return 0;
105 return ecdsa->meth->ecdsa_sign_setup(eckey, ctx_in, kinvp, rp);
106}
diff --git a/src/lib/libcrypto/ecdsa/ecs_vrf.c b/src/lib/libcrypto/ecdsa/ecs_vrf.c
new file mode 100644
index 0000000000..ef9acf7b61
--- /dev/null
+++ b/src/lib/libcrypto/ecdsa/ecs_vrf.c
@@ -0,0 +1,96 @@
1/* crypto/ecdsa/ecdsa_vrf.c */
2/*
3 * Written by Nils Larsch for the OpenSSL project
4 */
5/* ====================================================================
6 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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 * openssl-core@OpenSSL.org.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#include "ecs_locl.h"
60#ifndef OPENSSL_NO_ENGINE
61#include <openssl/engine.h>
62#endif
63
64/* returns
65 * 1: correct signature
66 * 0: incorrect signature
67 * -1: error
68 */
69int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
70 const ECDSA_SIG *sig, EC_KEY *eckey)
71 {
72 ECDSA_DATA *ecdsa = ecdsa_check(eckey);
73 if (ecdsa == NULL)
74 return 0;
75 return ecdsa->meth->ecdsa_do_verify(dgst, dgst_len, sig, eckey);
76 }
77
78/* returns
79 * 1: correct signature
80 * 0: incorrect signature
81 * -1: error
82 */
83int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
84 const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)
85 {
86 ECDSA_SIG *s;
87 int ret=-1;
88
89 s = ECDSA_SIG_new();
90 if (s == NULL) return(ret);
91 if (d2i_ECDSA_SIG(&s, &sigbuf, sig_len) == NULL) goto err;
92 ret=ECDSA_do_verify(dgst, dgst_len, s, eckey);
93err:
94 ECDSA_SIG_free(s);
95 return(ret);
96 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-10-12 21:57:29 +0000