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-rw-r--r--src/lib/libcrypto/ecdsa/ecdsa.h260
-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
8 files changed, 1511 insertions, 0 deletions
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/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 2025-11-01 06:26:27 +0000