Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/dsa/dsa_pmeth.c	Lines:	72	120	60.0 %
Date:	2017-11-07	Branches:	21	77	27.3 %


/* $OpenBSD: dsa_pmeth.c,v 1.11 2017/01/29 17:49:22 beck Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project 2006.
 */
/* ====================================================================
 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <limits.h>
#include <stdio.h>
#include <string.h>

#include <openssl/asn1t.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/x509.h>

#include "dsa_locl.h"
#include "evp_locl.h"

/* DSA pkey context structure */

typedef struct {
	/* Parameter gen parameters */
	int nbits;		/* size of p in bits (default: 1024) */
	int qbits;		/* size of q in bits (default: 160)  */
	const EVP_MD *pmd;	/* MD for parameter generation */
	/* Keygen callback info */
	int gentmp[2];
	/* message digest */
	const EVP_MD *md;	/* MD for the signature */
} DSA_PKEY_CTX;

static int
pkey_dsa_init(EVP_PKEY_CTX *ctx)
{
	DSA_PKEY_CTX *dctx;

	dctx = malloc(sizeof(DSA_PKEY_CTX));
	if (!dctx)
		return 0;
	dctx->nbits = 1024;
	dctx->qbits = 160;
	dctx->pmd = NULL;
	dctx->md = NULL;

	ctx->data = dctx;
	ctx->keygen_info = dctx->gentmp;
	ctx->keygen_info_count = 2;

	return 1;
}

static int
pkey_dsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
{
	DSA_PKEY_CTX *dctx, *sctx;

	if (!pkey_dsa_init(dst))
		return 0;
       	sctx = src->data;
	dctx = dst->data;
	dctx->nbits = sctx->nbits;
	dctx->qbits = sctx->qbits;
	dctx->pmd = sctx->pmd;
	dctx->md  = sctx->md;
	return 1;
}

static void
pkey_dsa_cleanup(EVP_PKEY_CTX *ctx)
{
	DSA_PKEY_CTX *dctx = ctx->data;

	free(dctx);
}

static int
pkey_dsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
    const unsigned char *tbs, size_t tbslen)
{
	int ret, type;
	unsigned int sltmp;
	DSA_PKEY_CTX *dctx = ctx->data;
	DSA *dsa = ctx->pkey->pkey.dsa;

	if (dctx->md)
		type = EVP_MD_type(dctx->md);
	else
		type = NID_sha1;

	ret = DSA_sign(type, tbs, tbslen, sig, &sltmp, dsa);

	if (ret <= 0)
		return ret;
	*siglen = sltmp;
	return 1;
}

static int
pkey_dsa_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
    const unsigned char *tbs, size_t tbslen)
{
	int ret, type;
	DSA_PKEY_CTX *dctx = ctx->data;
	DSA *dsa = ctx->pkey->pkey.dsa;

	if (dctx->md)
		type = EVP_MD_type(dctx->md);
	else
		type = NID_sha1;

	ret = DSA_verify(type, tbs, tbslen, sig, siglen, dsa);

	return ret;
}

static int
pkey_dsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
	DSA_PKEY_CTX *dctx = ctx->data;

	switch (type) {
	case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
		if (p1 < 256)
			return -2;
		dctx->nbits = p1;
		return 1;

	case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
		if (p1 != 160 && p1 != 224 && p1 && p1 != 256)
			return -2;
		dctx->qbits = p1;
		return 1;

	case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
		switch (EVP_MD_type((const EVP_MD *)p2)) {
		case NID_sha1:
		case NID_sha224:
		case NID_sha256:
			break;
		default:
			DSAerror(DSA_R_INVALID_DIGEST_TYPE);
			return 0;
		}
		dctx->md = p2;
		return 1;

	case EVP_PKEY_CTRL_MD:
		switch (EVP_MD_type((const EVP_MD *)p2)) {
		case NID_sha1:
		case NID_dsa:
		case NID_dsaWithSHA:
		case NID_sha224:
		case NID_sha256:
		case NID_sha384:
		case NID_sha512:
			break;
		default:
			DSAerror(DSA_R_INVALID_DIGEST_TYPE);
			return 0;
		}
		dctx->md = p2;
		return 1;

	case EVP_PKEY_CTRL_DIGESTINIT:
	case EVP_PKEY_CTRL_PKCS7_SIGN:
	case EVP_PKEY_CTRL_CMS_SIGN:
		return 1;

	case EVP_PKEY_CTRL_PEER_KEY:
		DSAerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	default:
		return -2;
	}
}

static int
pkey_dsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value)
{
 	long lval;
	char *ep;

	if (!strcmp(type, "dsa_paramgen_bits")) {
		int nbits;

		errno = 0;
		lval = strtol(value, &ep, 10);
		if (value[0] == '\0' || *ep != '\0')
			goto not_a_number;
		if ((errno == ERANGE &&
		    (lval == LONG_MAX || lval == LONG_MIN)) ||
		    (lval > INT_MAX || lval < INT_MIN))
			goto out_of_range;
		nbits = lval;
		return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits);
	} else if (!strcmp(type, "dsa_paramgen_q_bits")) {
		int qbits;

		errno = 0;
		lval = strtol(value, &ep, 10);
		if (value[0] == '\0' || *ep != '\0')
			goto not_a_number;
		if ((errno == ERANGE &&
		    (lval == LONG_MAX || lval == LONG_MIN)) ||
		    (lval > INT_MAX || lval < INT_MIN))
			goto out_of_range;
		qbits = lval;
		return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
		    EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS,
		    qbits, NULL);
	} else if (!strcmp(type, "dsa_paramgen_md")) {
		return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
		    EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0,
		    (void *)EVP_get_digestbyname(value));
	}
not_a_number:
out_of_range:
	return -2;
}

static int
pkey_dsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
	DSA *dsa = NULL;
	DSA_PKEY_CTX *dctx = ctx->data;
	BN_GENCB *pcb, cb;
	int ret;

	if (ctx->pkey_gencb) {
		pcb = &cb;
		evp_pkey_set_cb_translate(pcb, ctx);
	} else
		pcb = NULL;
	dsa = DSA_new();
	if (!dsa)
		return 0;
	ret = dsa_builtin_paramgen(dsa, dctx->nbits, dctx->qbits, dctx->pmd,
	    NULL, 0, NULL, NULL, NULL, pcb);
	if (ret)
		EVP_PKEY_assign_DSA(pkey, dsa);
	else
		DSA_free(dsa);
	return ret;
}

static int
pkey_dsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
	DSA *dsa = NULL;

	if (ctx->pkey == NULL) {
		DSAerror(DSA_R_NO_PARAMETERS_SET);
		return 0;
	}
	dsa = DSA_new();
	if (!dsa)
		return 0;
	EVP_PKEY_assign_DSA(pkey, dsa);
	/* Note: if error return, pkey is freed by parent routine */
	if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
		return 0;
	return DSA_generate_key(pkey->pkey.dsa);
}

const EVP_PKEY_METHOD dsa_pkey_meth = {
	.pkey_id = EVP_PKEY_DSA,
	.flags = EVP_PKEY_FLAG_AUTOARGLEN,

	.init = pkey_dsa_init,
	.copy = pkey_dsa_copy,
	.cleanup = pkey_dsa_cleanup,

	.paramgen = pkey_dsa_paramgen,

	.keygen = pkey_dsa_keygen,

	.sign = pkey_dsa_sign,

	.verify = pkey_dsa_verify,

	.ctrl = pkey_dsa_ctrl,
	.ctrl_str = pkey_dsa_ctrl_str
};


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: dsa_pmeth.c,v 1.11 2017/01/29 17:49:22 beck Exp $ */
2			/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3			* project 2006.
4			*/
5			/* ====================================================================
6			* Copyright (c) 2006 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			#include <limits.h>
60			#include <stdio.h>
61			#include <string.h>
62
63			#include <openssl/asn1t.h>
64			#include <openssl/bn.h>
65			#include <openssl/err.h>
66			#include <openssl/evp.h>
67			#include <openssl/x509.h>
68
69			#include "dsa_locl.h"
70			#include "evp_locl.h"
71
72			/* DSA pkey context structure */
73
74			typedef struct {
75			/* Parameter gen parameters */
76			int nbits; /* size of p in bits (default: 1024) */
77			int qbits; /* size of q in bits (default: 160) */
78			const EVP_MD pmd; / MD for parameter generation */
79			/* Keygen callback info */
80			int gentmp[2];
81			/* message digest */
82			const EVP_MD md; / MD for the signature */
83			} DSA_PKEY_CTX;
84
85			static int
86			pkey_dsa_init(EVP_PKEY_CTX *ctx)
87			{
88			DSA_PKEY_CTX *dctx;
89
90		20	dctx = malloc(sizeof(DSA_PKEY_CTX));
91	✗✓	10	if (!dctx)
92			return 0;
93		10	dctx->nbits = 1024;
94		10	dctx->qbits = 160;
95		10	dctx->pmd = NULL;
96		10	dctx->md = NULL;
97
98		10	ctx->data = dctx;
99		10	ctx->keygen_info = dctx->gentmp;
100		10	ctx->keygen_info_count = 2;
101
102		10	return 1;
103		10	}
104
105			static int
106			pkey_dsa_copy(EVP_PKEY_CTX dst, EVP_PKEY_CTX src)
107			{
108			DSA_PKEY_CTX dctx, sctx;
109
110	✗✓	4	if (!pkey_dsa_init(dst))
111			return 0;
112		2	sctx = src->data;
113		2	dctx = dst->data;
114		2	dctx->nbits = sctx->nbits;
115		2	dctx->qbits = sctx->qbits;
116		2	dctx->pmd = sctx->pmd;
117		2	dctx->md = sctx->md;
118		2	return 1;
119		2	}
120
121			static void
122			pkey_dsa_cleanup(EVP_PKEY_CTX *ctx)
123			{
124		20	DSA_PKEY_CTX *dctx = ctx->data;
125
126		10	free(dctx);
127		10	}
128
129			static int
130			pkey_dsa_sign(EVP_PKEY_CTX ctx, unsigned char sig, size_t *siglen,
131			const unsigned char *tbs, size_t tbslen)
132			{
133			int ret, type;
134		4	unsigned int sltmp;
135		2	DSA_PKEY_CTX *dctx = ctx->data;
136		2	DSA *dsa = ctx->pkey->pkey.dsa;
137
138	✓✗	2	if (dctx->md)
139		2	type = EVP_MD_type(dctx->md);
140			else
141			type = NID_sha1;
142
143		2	ret = DSA_sign(type, tbs, tbslen, sig, &sltmp, dsa);
144
145	✗✓	2	if (ret <= 0)
146			return ret;
147		2	*siglen = sltmp;
148		2	return 1;
149		2	}
150
151			static int
152			pkey_dsa_verify(EVP_PKEY_CTX ctx, const unsigned char sig, size_t siglen,
153			const unsigned char *tbs, size_t tbslen)
154			{
155			int ret, type;
156			DSA_PKEY_CTX *dctx = ctx->data;
157			DSA *dsa = ctx->pkey->pkey.dsa;
158
159			if (dctx->md)
160			type = EVP_MD_type(dctx->md);
161			else
162			type = NID_sha1;
163
164			ret = DSA_verify(type, tbs, tbslen, sig, siglen, dsa);
165
166			return ret;
167			}
168
169			static int
170			pkey_dsa_ctrl(EVP_PKEY_CTX ctx, int type, int p1, void p2)
171			{
172		12	DSA_PKEY_CTX *dctx = ctx->data;
173
174	✓✗✗✓ ✗✗✓✗ ✗	6	switch (type) {
175			case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
176	✗✓	2	if (p1 < 256)
177			return -2;
178		2	dctx->nbits = p1;
179		2	return 1;
180
181			case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
182			if (p1 != 160 && p1 != 224 && p1 && p1 != 256)
183			return -2;
184			dctx->qbits = p1;
185			return 1;
186
187			case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
188			switch (EVP_MD_type((const EVP_MD *)p2)) {
189			case NID_sha1:
190			case NID_sha224:
191			case NID_sha256:
192			break;
193			default:
194			DSAerror(DSA_R_INVALID_DIGEST_TYPE);
195			return 0;
196			}
197			dctx->md = p2;
198			return 1;
199
200			case EVP_PKEY_CTRL_MD:
201	✗✗✗✗ ✗✗✗✓	2	switch (EVP_MD_type((const EVP_MD *)p2)) {
202			case NID_sha1:
203			case NID_dsa:
204			case NID_dsaWithSHA:
205			case NID_sha224:
206			case NID_sha256:
207			case NID_sha384:
208			case NID_sha512:
209			break;
210			default:
211			DSAerror(DSA_R_INVALID_DIGEST_TYPE);
212			return 0;
213			}
214		2	dctx->md = p2;
215		2	return 1;
216
217			case EVP_PKEY_CTRL_DIGESTINIT:
218			case EVP_PKEY_CTRL_PKCS7_SIGN:
219			case EVP_PKEY_CTRL_CMS_SIGN:
220		2	return 1;
221
222			case EVP_PKEY_CTRL_PEER_KEY:
223			DSAerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
224			return -2;
225			default:
226			return -2;
227			}
228		6	}
229
230			static int
231			pkey_dsa_ctrl_str(EVP_PKEY_CTX ctx, const char type, const char *value)
232			{
233			long lval;
234		4	char *ep;
235
236	✓✗	2	if (!strcmp(type, "dsa_paramgen_bits")) {
237			int nbits;
238
239		2	errno = 0;
240		2	lval = strtol(value, &ep, 10);
241	✓✗✗✓	4	if (value[0] == '\0' \|\| *ep != '\0')
242			goto not_a_number;
243	✗✓	2	if ((errno == ERANGE &&
244			(lval == LONG_MAX \|\| lval == LONG_MIN)) \|\|
245	✗✓	2	(lval > INT_MAX \|\| lval < INT_MIN))
246			goto out_of_range;
247		2	nbits = lval;
248	✗✓	2	return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits);
249			} else if (!strcmp(type, "dsa_paramgen_q_bits")) {
250			int qbits;
251
252			errno = 0;
253			lval = strtol(value, &ep, 10);
254			if (value[0] == '\0' \|\| *ep != '\0')
255			goto not_a_number;
256			if ((errno == ERANGE &&
257			(lval == LONG_MAX \|\| lval == LONG_MIN)) \|\|
258			(lval > INT_MAX \|\| lval < INT_MIN))
259			goto out_of_range;
260			qbits = lval;
261			return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
262			EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS,
263			qbits, NULL);
264			} else if (!strcmp(type, "dsa_paramgen_md")) {
265			return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
266			EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0,
267			(void *)EVP_get_digestbyname(value));
268			}
269			not_a_number:
270			out_of_range:
271			return -2;
272		2	}
273
274			static int
275			pkey_dsa_paramgen(EVP_PKEY_CTX ctx, EVP_PKEY pkey)
276			{
277			DSA *dsa = NULL;
278		4	DSA_PKEY_CTX *dctx = ctx->data;
279		2	BN_GENCB *pcb, cb;
280			int ret;
281
282	✓✗	2	if (ctx->pkey_gencb) {
283			pcb = &cb;
284		2	evp_pkey_set_cb_translate(pcb, ctx);
285		2	} else
286			pcb = NULL;
287		2	dsa = DSA_new();
288	✗✓	2	if (!dsa)
289			return 0;
290		2	ret = dsa_builtin_paramgen(dsa, dctx->nbits, dctx->qbits, dctx->pmd,
291			NULL, 0, NULL, NULL, NULL, pcb);
292	✓✗	2	if (ret)
293		2	EVP_PKEY_assign_DSA(pkey, dsa);
294			else
295			DSA_free(dsa);
296		2	return ret;
297		2	}
298
299			static int
300			pkey_dsa_keygen(EVP_PKEY_CTX ctx, EVP_PKEY pkey)
301			{
302			DSA *dsa = NULL;
303
304	✗✓	8	if (ctx->pkey == NULL) {
305			DSAerror(DSA_R_NO_PARAMETERS_SET);
306			return 0;
307			}
308		4	dsa = DSA_new();
309	✗✓	4	if (!dsa)
310			return 0;
311		4	EVP_PKEY_assign_DSA(pkey, dsa);
312			/* Note: if error return, pkey is freed by parent routine */
313	✗✓	4	if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
314			return 0;
315		4	return DSA_generate_key(pkey->pkey.dsa);
316		4	}
317
318			const EVP_PKEY_METHOD dsa_pkey_meth = {
319			.pkey_id = EVP_PKEY_DSA,
320			.flags = EVP_PKEY_FLAG_AUTOARGLEN,
321
322			.init = pkey_dsa_init,
323			.copy = pkey_dsa_copy,
324			.cleanup = pkey_dsa_cleanup,
325
326			.paramgen = pkey_dsa_paramgen,
327
328			.keygen = pkey_dsa_keygen,
329
330			.sign = pkey_dsa_sign,
331
332			.verify = pkey_dsa_verify,
333
334			.ctrl = pkey_dsa_ctrl,
335			.ctrl_str = pkey_dsa_ctrl_str
336			};