/src/openssl30/crypto/ec/ec_kmeth.c

Source (jump to first uncovered line)
/*
 * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * ECDH and ECDSA low level APIs are deprecated for public use, but still ok
 * for internal use.
 */
#include "internal/deprecated.h"

#include <string.h>
#include <openssl/ec.h>
#ifndef FIPS_MODULE
# include <openssl/engine.h>
#endif
#include <openssl/err.h>
#include "ec_local.h"


static const EC_KEY_METHOD openssl_ec_key_method = {
    "OpenSSL EC_KEY method",
    0,
    0,0,0,0,0,0,
    ossl_ec_key_gen,
    ossl_ecdh_compute_key,
    ossl_ecdsa_sign,
    ossl_ecdsa_sign_setup,
    ossl_ecdsa_sign_sig,
    ossl_ecdsa_verify,
    ossl_ecdsa_verify_sig
};

static const EC_KEY_METHOD *default_ec_key_meth = &openssl_ec_key_method;

const EC_KEY_METHOD *EC_KEY_OpenSSL(void)
{
    return &openssl_ec_key_method;
}

const EC_KEY_METHOD *EC_KEY_get_default_method(void)
{
    return default_ec_key_meth;
}

void EC_KEY_set_default_method(const EC_KEY_METHOD *meth)
{
    if (meth == NULL)
        default_ec_key_meth = &openssl_ec_key_method;
    else
        default_ec_key_meth = meth;
}

const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key)
{
    return key->meth;
}

int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth)
{
    void (*finish)(EC_KEY *key) = key->meth->finish;

    if (finish != NULL)
        finish(key);

#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
    ENGINE_finish(key->engine);
    key->engine = NULL;
#endif

    key->meth = meth;
    if (meth->init != NULL)
        return meth->init(key);
    return 1;
}

EC_KEY *ossl_ec_key_new_method_int(OSSL_LIB_CTX *libctx, const char *propq,
                                   ENGINE *engine)
{
    EC_KEY *ret = OPENSSL_zalloc(sizeof(*ret));

    if (ret == NULL) {
        ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
        return NULL;
    }

    ret->libctx = libctx;
    if (propq != NULL) {
        ret->propq = OPENSSL_strdup(propq);
        if (ret->propq == NULL) {
            ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
            goto err;
        }
    }

    ret->references = 1;
    ret->lock = CRYPTO_THREAD_lock_new();
    if (ret->lock == NULL) {
        ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
        goto err;
    }

    ret->meth = EC_KEY_get_default_method();
#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
    if (engine != NULL) {
        if (!ENGINE_init(engine)) {
            ERR_raise(ERR_LIB_EC, ERR_R_ENGINE_LIB);
            goto err;
        }
        ret->engine = engine;
    } else
        ret->engine = ENGINE_get_default_EC();
    if (ret->engine != NULL) {
        ret->meth = ENGINE_get_EC(ret->engine);
        if (ret->meth == NULL) {
            ERR_raise(ERR_LIB_EC, ERR_R_ENGINE_LIB);
            goto err;
        }
    }
#endif

    ret->version = 1;
    ret->conv_form = POINT_CONVERSION_UNCOMPRESSED;

/* No ex_data inside the FIPS provider */
#ifndef FIPS_MODULE
    if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data)) {
        goto err;
    }
#endif

    if (ret->meth->init != NULL && ret->meth->init(ret) == 0) {
        ERR_raise(ERR_LIB_EC, ERR_R_INIT_FAIL);
        goto err;
    }
    return ret;

 err:
    EC_KEY_free(ret);
    return NULL;
}

#ifndef FIPS_MODULE
EC_KEY *EC_KEY_new_method(ENGINE *engine)
{
    return ossl_ec_key_new_method_int(NULL, NULL, engine);
}
#endif

int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
                     const EC_KEY *eckey,
                     void *(*KDF) (const void *in, size_t inlen, void *out,
                                   size_t *outlen))
{
    unsigned char *sec = NULL;
    size_t seclen;
    if (eckey->meth->compute_key == NULL) {
        ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
        return 0;
    }
    if (outlen > INT_MAX) {
        ERR_raise(ERR_LIB_EC, EC_R_INVALID_OUTPUT_LENGTH);
        return 0;
    }
    if (!eckey->meth->compute_key(&sec, &seclen, pub_key, eckey))
        return 0;
    if (KDF != NULL) {
        KDF(sec, seclen, out, &outlen);
    } else {
        if (outlen > seclen)
            outlen = seclen;
        memcpy(out, sec, outlen);
    }
    OPENSSL_clear_free(sec, seclen);
    return outlen;
}

EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth)
{
    EC_KEY_METHOD *ret = OPENSSL_zalloc(sizeof(*meth));

    if (ret == NULL)
        return NULL;
    if (meth != NULL)
        *ret = *meth;
    ret->flags |= EC_KEY_METHOD_DYNAMIC;
    return ret;
}

void EC_KEY_METHOD_free(EC_KEY_METHOD *meth)
{
    if (meth->flags & EC_KEY_METHOD_DYNAMIC)
        OPENSSL_free(meth);
}

void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth,
                            int (*init)(EC_KEY *key),
                            void (*finish)(EC_KEY *key),
                            int (*copy)(EC_KEY *dest, const EC_KEY *src),
                            int (*set_group)(EC_KEY *key, const EC_GROUP *grp),
                            int (*set_private)(EC_KEY *key,
                                               const BIGNUM *priv_key),
                            int (*set_public)(EC_KEY *key,
                                              const EC_POINT *pub_key))
{
    meth->init = init;
    meth->finish = finish;
    meth->copy = copy;
    meth->set_group = set_group;
    meth->set_private = set_private;
    meth->set_public = set_public;
}

void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth,
                              int (*keygen)(EC_KEY *key))
{
    meth->keygen = keygen;
}

void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth,
                                   int (*ckey)(unsigned char **psec,
                                               size_t *pseclen,
                                               const EC_POINT *pub_key,
                                               const EC_KEY *ecdh))
{
    meth->compute_key = ckey;
}

void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth,
                            int (*sign)(int type, const unsigned char *dgst,
                                        int dlen, unsigned char *sig,
                                        unsigned int *siglen,
                                        const BIGNUM *kinv, const BIGNUM *r,
                                        EC_KEY *eckey),
                            int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
                                              BIGNUM **kinvp, BIGNUM **rp),
                            ECDSA_SIG *(*sign_sig)(const unsigned char *dgst,
                                                   int dgst_len,
                                                   const BIGNUM *in_kinv,
                                                   const BIGNUM *in_r,
                                                   EC_KEY *eckey))
{
    meth->sign = sign;
    meth->sign_setup = sign_setup;
    meth->sign_sig = sign_sig;
}

void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth,
                              int (*verify)(int type, const unsigned
                                            char *dgst, int dgst_len,
                                            const unsigned char *sigbuf,
                                            int sig_len, EC_KEY *eckey),
                              int (*verify_sig)(const unsigned char *dgst,
                                                int dgst_len,
                                                const ECDSA_SIG *sig,
                                                EC_KEY *eckey))
{
    meth->verify = verify;
    meth->verify_sig = verify_sig;
}

void EC_KEY_METHOD_get_init(const EC_KEY_METHOD *meth,
                            int (**pinit)(EC_KEY *key),
                            void (**pfinish)(EC_KEY *key),
                            int (**pcopy)(EC_KEY *dest, const EC_KEY *src),
                            int (**pset_group)(EC_KEY *key,
                                               const EC_GROUP *grp),
                            int (**pset_private)(EC_KEY *key,
                                                 const BIGNUM *priv_key),
                            int (**pset_public)(EC_KEY *key,
                                                const EC_POINT *pub_key))
{
    if (pinit != NULL)
        *pinit = meth->init;
    if (pfinish != NULL)
        *pfinish = meth->finish;
    if (pcopy != NULL)
        *pcopy = meth->copy;
    if (pset_group != NULL)
        *pset_group = meth->set_group;
    if (pset_private != NULL)
        *pset_private = meth->set_private;
    if (pset_public != NULL)
        *pset_public = meth->set_public;
}

void EC_KEY_METHOD_get_keygen(const EC_KEY_METHOD *meth,
                              int (**pkeygen)(EC_KEY *key))
{
    if (pkeygen != NULL)
        *pkeygen = meth->keygen;
}

void EC_KEY_METHOD_get_compute_key(const EC_KEY_METHOD *meth,
                                   int (**pck)(unsigned char **pout,
                                               size_t *poutlen,
                                               const EC_POINT *pub_key,
                                               const EC_KEY *ecdh))
{
    if (pck != NULL)
        *pck = meth->compute_key;
}

void EC_KEY_METHOD_get_sign(const EC_KEY_METHOD *meth,
                            int (**psign)(int type, const unsigned char *dgst,
                                          int dlen, unsigned char *sig,
                                          unsigned int *siglen,
                                          const BIGNUM *kinv, const BIGNUM *r,
                                          EC_KEY *eckey),
                            int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
                                                BIGNUM **kinvp, BIGNUM **rp),
                            ECDSA_SIG *(**psign_sig)(const unsigned char *dgst,
                                                     int dgst_len,
                                                     const BIGNUM *in_kinv,
                                                     const BIGNUM *in_r,
                                                     EC_KEY *eckey))
{
    if (psign != NULL)
        *psign = meth->sign;
    if (psign_setup != NULL)
        *psign_setup = meth->sign_setup;
    if (psign_sig != NULL)
        *psign_sig = meth->sign_sig;
}

void EC_KEY_METHOD_get_verify(const EC_KEY_METHOD *meth,
                              int (**pverify)(int type, const unsigned
                                              char *dgst, int dgst_len,
                                              const unsigned char *sigbuf,
                                              int sig_len, EC_KEY *eckey),
                              int (**pverify_sig)(const unsigned char *dgst,
                                                  int dgst_len,
                                                  const ECDSA_SIG *sig,
                                                  EC_KEY *eckey))
{
    if (pverify != NULL)
        *pverify = meth->verify;
    if (pverify_sig != NULL)
        *pverify_sig = meth->verify_sig;
}

Coverage Report

Created: 2025-06-13 06:58

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		/*
11		* ECDH and ECDSA low level APIs are deprecated for public use, but still ok
12		* for internal use.
13		*/
14		#include "internal/deprecated.h"
15
16		#include <string.h>
17		#include <openssl/ec.h>
18		#ifndef FIPS_MODULE
19		# include <openssl/engine.h>
20		#endif
21		#include <openssl/err.h>
22		#include "ec_local.h"
23
24
25		static const EC_KEY_METHOD openssl_ec_key_method = {
26		"OpenSSL EC_KEY method",
27		0,
28		0,0,0,0,0,0,
29		ossl_ec_key_gen,
30		ossl_ecdh_compute_key,
31		ossl_ecdsa_sign,
32		ossl_ecdsa_sign_setup,
33		ossl_ecdsa_sign_sig,
34		ossl_ecdsa_verify,
35		ossl_ecdsa_verify_sig
36		};
37
38		static const EC_KEY_METHOD *default_ec_key_meth = &openssl_ec_key_method;
39
40		const EC_KEY_METHOD *EC_KEY_OpenSSL(void)
41	268k	{
42	268k	return &openssl_ec_key_method;
43	268k	}
44
45		const EC_KEY_METHOD *EC_KEY_get_default_method(void)
46	621k	{
47	621k	return default_ec_key_meth;
48	621k	}
49
50		void EC_KEY_set_default_method(const EC_KEY_METHOD *meth)
51	0	{
52	0	if (meth == NULL)
53	0	default_ec_key_meth = &openssl_ec_key_method;
54	0	else
55	0	default_ec_key_meth = meth;
56	0	}
57
58		const EC_KEY_METHOD EC_KEY_get_method(const EC_KEY key)
59	268k	{
60	268k	return key->meth;
61	268k	}
62
63		int EC_KEY_set_method(EC_KEY key, const EC_KEY_METHOD meth)
64	0	{
65	0	void (finish)(EC_KEY key) = key->meth->finish;
66
67	0	if (finish != NULL)
68	0	finish(key);
69
70	0	#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
71	0	ENGINE_finish(key->engine);
72	0	key->engine = NULL;
73	0	#endif
74
75	0	key->meth = meth;
76	0	if (meth->init != NULL)
77	0	return meth->init(key);
78	0	return 1;
79	0	}
80
81		EC_KEY ossl_ec_key_new_method_int(OSSL_LIB_CTX libctx, const char *propq,
82		ENGINE *engine)
83	283k	{
84	283k	EC_KEY ret = OPENSSL_zalloc(sizeof(ret));
85
86	283k	if (ret == NULL) {
87	0	ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
88	0	return NULL;
89	0	}
90
91	283k	ret->libctx = libctx;
92	283k	if (propq != NULL) {
93	0	ret->propq = OPENSSL_strdup(propq);
94	0	if (ret->propq == NULL) {
95	0	ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
96	0	goto err;
97	0	}
98	0	}
99
100	283k	ret->references = 1;
101	283k	ret->lock = CRYPTO_THREAD_lock_new();
102	283k	if (ret->lock == NULL) {
103	0	ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
104	0	goto err;
105	0	}
106
107	283k	ret->meth = EC_KEY_get_default_method();
108	283k	#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
109	283k	if (engine != NULL) {
110	0	if (!ENGINE_init(engine)) {
111	0	ERR_raise(ERR_LIB_EC, ERR_R_ENGINE_LIB);
112	0	goto err;
113	0	}
114	0	ret->engine = engine;
115	0	} else
116	283k	ret->engine = ENGINE_get_default_EC();
117	283k	if (ret->engine != NULL) {
118	0	ret->meth = ENGINE_get_EC(ret->engine);
119	0	if (ret->meth == NULL) {
120	0	ERR_raise(ERR_LIB_EC, ERR_R_ENGINE_LIB);
121	0	goto err;
122	0	}
123	0	}
124	283k	#endif
125
126	283k	ret->version = 1;
127	283k	ret->conv_form = POINT_CONVERSION_UNCOMPRESSED;
128
129		/* No ex_data inside the FIPS provider */
130	283k	#ifndef FIPS_MODULE
131	283k	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EC_KEY, ret, &ret->ex_data)) {
132	0	goto err;
133	0	}
134	283k	#endif
135
136	283k	if (ret->meth->init != NULL && ret->meth->init(ret) == 0) {
137	0	ERR_raise(ERR_LIB_EC, ERR_R_INIT_FAIL);
138	0	goto err;
139	0	}
140	283k	return ret;
141
142	0	err:
143	0	EC_KEY_free(ret);
144	0	return NULL;
145	283k	}
146
147		#ifndef FIPS_MODULE
148		EC_KEY EC_KEY_new_method(ENGINE engine)
149	0	{
150	0	return ossl_ec_key_new_method_int(NULL, NULL, engine);
151	0	}
152		#endif
153
154		int ECDH_compute_key(void out, size_t outlen, const EC_POINT pub_key,
155		const EC_KEY *eckey,
156		void (KDF) (const void in, size_t inlen, void out,
157		size_t *outlen))
158	2.10k	{
159	2.10k	unsigned char *sec = NULL;
160	2.10k	size_t seclen;
161	2.10k	if (eckey->meth->compute_key == NULL) {
162	0	ERR_raise(ERR_LIB_EC, EC_R_OPERATION_NOT_SUPPORTED);
163	0	return 0;
164	0	}
165	2.10k	if (outlen > INT_MAX) {
166	0	ERR_raise(ERR_LIB_EC, EC_R_INVALID_OUTPUT_LENGTH);
167	0	return 0;
168	0	}
169	2.10k	if (!eckey->meth->compute_key(&sec, &seclen, pub_key, eckey))
170	0	return 0;
171	2.10k	if (KDF != NULL) {
172	0	KDF(sec, seclen, out, &outlen);
173	2.10k	} else {
174	2.10k	if (outlen > seclen)
175	0	outlen = seclen;
176	2.10k	memcpy(out, sec, outlen);
177	2.10k	}
178	2.10k	OPENSSL_clear_free(sec, seclen);
179	2.10k	return outlen;
180	2.10k	}
181
182		EC_KEY_METHOD EC_KEY_METHOD_new(const EC_KEY_METHOD meth)
183	0	{
184	0	EC_KEY_METHOD ret = OPENSSL_zalloc(sizeof(meth));
185
186	0	if (ret == NULL)
187	0	return NULL;
188	0	if (meth != NULL)
189	0	ret = meth;
190	0	ret->flags \|= EC_KEY_METHOD_DYNAMIC;
191	0	return ret;
192	0	}
193
194		void EC_KEY_METHOD_free(EC_KEY_METHOD *meth)
195	0	{
196	0	if (meth->flags & EC_KEY_METHOD_DYNAMIC)
197	0	OPENSSL_free(meth);
198	0	}
199
200		void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth,
201		int (init)(EC_KEY key),
202		void (finish)(EC_KEY key),
203		int (copy)(EC_KEY dest, const EC_KEY *src),
204		int (set_group)(EC_KEY key, const EC_GROUP *grp),
205		int (set_private)(EC_KEY key,
206		const BIGNUM *priv_key),
207		int (set_public)(EC_KEY key,
208		const EC_POINT *pub_key))
209	0	{
210	0	meth->init = init;
211	0	meth->finish = finish;
212	0	meth->copy = copy;
213	0	meth->set_group = set_group;
214	0	meth->set_private = set_private;
215	0	meth->set_public = set_public;
216	0	}
217
218		void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth,
219		int (keygen)(EC_KEY key))
220	0	{
221	0	meth->keygen = keygen;
222	0	}
223
224		void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth,
225		int (ckey)(unsigned char *psec,
226		size_t *pseclen,
227		const EC_POINT *pub_key,
228		const EC_KEY *ecdh))
229	0	{
230	0	meth->compute_key = ckey;
231	0	}
232
233		void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth,
234		int (sign)(int type, const unsigned char dgst,
235		int dlen, unsigned char *sig,
236		unsigned int *siglen,
237		const BIGNUM kinv, const BIGNUM r,
238		EC_KEY *eckey),
239		int (sign_setup)(EC_KEY eckey, BN_CTX *ctx_in,
240		BIGNUM kinvp, BIGNUM rp),
241		ECDSA_SIG (sign_sig)(const unsigned char *dgst,
242		int dgst_len,
243		const BIGNUM *in_kinv,
244		const BIGNUM *in_r,
245		EC_KEY *eckey))
246	0	{
247	0	meth->sign = sign;
248	0	meth->sign_setup = sign_setup;
249	0	meth->sign_sig = sign_sig;
250	0	}
251
252		void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth,
253		int (*verify)(int type, const unsigned
254		char *dgst, int dgst_len,
255		const unsigned char *sigbuf,
256		int sig_len, EC_KEY *eckey),
257		int (verify_sig)(const unsigned char dgst,
258		int dgst_len,
259		const ECDSA_SIG *sig,
260		EC_KEY *eckey))
261	0	{
262	0	meth->verify = verify;
263	0	meth->verify_sig = verify_sig;
264	0	}
265
266		void EC_KEY_METHOD_get_init(const EC_KEY_METHOD *meth,
267		int (*pinit)(EC_KEY key),
268		void (*pfinish)(EC_KEY key),
269		int (*pcopy)(EC_KEY dest, const EC_KEY *src),
270		int (*pset_group)(EC_KEY key,
271		const EC_GROUP *grp),
272		int (*pset_private)(EC_KEY key,
273		const BIGNUM *priv_key),
274		int (*pset_public)(EC_KEY key,
275		const EC_POINT *pub_key))
276	0	{
277	0	if (pinit != NULL)
278	0	*pinit = meth->init;
279	0	if (pfinish != NULL)
280	0	*pfinish = meth->finish;
281	0	if (pcopy != NULL)
282	0	*pcopy = meth->copy;
283	0	if (pset_group != NULL)
284	0	*pset_group = meth->set_group;
285	0	if (pset_private != NULL)
286	0	*pset_private = meth->set_private;
287	0	if (pset_public != NULL)
288	0	*pset_public = meth->set_public;
289	0	}
290
291		void EC_KEY_METHOD_get_keygen(const EC_KEY_METHOD *meth,
292		int (*pkeygen)(EC_KEY key))
293	0	{
294	0	if (pkeygen != NULL)
295	0	*pkeygen = meth->keygen;
296	0	}
297
298		void EC_KEY_METHOD_get_compute_key(const EC_KEY_METHOD *meth,
299		int (pck)(unsigned char pout,
300		size_t *poutlen,
301		const EC_POINT *pub_key,
302		const EC_KEY *ecdh))
303	0	{
304	0	if (pck != NULL)
305	0	*pck = meth->compute_key;
306	0	}
307
308		void EC_KEY_METHOD_get_sign(const EC_KEY_METHOD *meth,
309		int (*psign)(int type, const unsigned char dgst,
310		int dlen, unsigned char *sig,
311		unsigned int *siglen,
312		const BIGNUM kinv, const BIGNUM r,
313		EC_KEY *eckey),
314		int (*psign_setup)(EC_KEY eckey, BN_CTX *ctx_in,
315		BIGNUM kinvp, BIGNUM rp),
316		ECDSA_SIG (psign_sig)(const unsigned char dgst,
317		int dgst_len,
318		const BIGNUM *in_kinv,
319		const BIGNUM *in_r,
320		EC_KEY *eckey))
321	0	{
322	0	if (psign != NULL)
323	0	*psign = meth->sign;
324	0	if (psign_setup != NULL)
325	0	*psign_setup = meth->sign_setup;
326	0	if (psign_sig != NULL)
327	0	*psign_sig = meth->sign_sig;
328	0	}
329
330		void EC_KEY_METHOD_get_verify(const EC_KEY_METHOD *meth,
331		int (**pverify)(int type, const unsigned
332		char *dgst, int dgst_len,
333		const unsigned char *sigbuf,
334		int sig_len, EC_KEY *eckey),
335		int (*pverify_sig)(const unsigned char dgst,
336		int dgst_len,
337		const ECDSA_SIG *sig,
338		EC_KEY *eckey))
339	0	{
340	0	if (pverify != NULL)
341	0	*pverify = meth->verify;
342	0	if (pverify_sig != NULL)
343	0	*pverify_sig = meth->verify_sig;
344	0	}