Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/evp/pmeth_fn.c	Lines:	49	150	32.7 %
Date:	2017-11-13	Branches:	64	180	35.6 %


/* $OpenBSD: pmeth_fn.c,v 1.6 2017/01/29 17:49:23 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 <stdio.h>
#include <stdlib.h>

#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>

#include "evp_locl.h"

#define M_check_autoarg(ctx, arg, arglen, err) \
	if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) \
		{ \
		size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \
		if (!arg) \
			{ \
			*arglen = pksize; \
			return 1; \
			} \
		else if (*arglen < pksize) \
			{ \
			EVPerror(EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/\
			return 0; \
			} \
		}

int
EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
{
	int ret;

	if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	ctx->operation = EVP_PKEY_OP_SIGN;
	if (!ctx->pmeth->sign_init)
		return 1;
	ret = ctx->pmeth->sign_init(ctx);
	if (ret <= 0)
		ctx->operation = EVP_PKEY_OP_UNDEFINED;
	return ret;
}

int
EVP_PKEY_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
    const unsigned char *tbs, size_t tbslen)
{
	if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_SIGN) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}
	M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
	return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
}

int
EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
{
	int ret;

	if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	ctx->operation = EVP_PKEY_OP_VERIFY;
	if (!ctx->pmeth->verify_init)
		return 1;
	ret = ctx->pmeth->verify_init(ctx);
	if (ret <= 0)
		ctx->operation = EVP_PKEY_OP_UNDEFINED;
	return ret;
}

int
EVP_PKEY_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
    const unsigned char *tbs, size_t tbslen)
{
	if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_VERIFY) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}
	return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
}

int
EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
{
	int ret;

	if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
	if (!ctx->pmeth->verify_recover_init)
		return 1;
	ret = ctx->pmeth->verify_recover_init(ctx);
	if (ret <= 0)
		ctx->operation = EVP_PKEY_OP_UNDEFINED;
	return ret;
}

int
EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx, unsigned char *rout, size_t *routlen,
    const unsigned char *sig, size_t siglen)
{
	if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}
	M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
	return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
}

int
EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
{
	int ret;

	if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	ctx->operation = EVP_PKEY_OP_ENCRYPT;
	if (!ctx->pmeth->encrypt_init)
		return 1;
	ret = ctx->pmeth->encrypt_init(ctx);
	if (ret <= 0)
		ctx->operation = EVP_PKEY_OP_UNDEFINED;
	return ret;
}

int
EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
    const unsigned char *in, size_t inlen)
{
	if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}
	M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
	return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
}

int
EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
{
	int ret;

	if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	ctx->operation = EVP_PKEY_OP_DECRYPT;
	if (!ctx->pmeth->decrypt_init)
		return 1;
	ret = ctx->pmeth->decrypt_init(ctx);
	if (ret <= 0)
		ctx->operation = EVP_PKEY_OP_UNDEFINED;
	return ret;
}

int
EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
    const unsigned char *in, size_t inlen)
{
	if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}
	M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
	return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
}

int
EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx)
{
	int ret;

	if (!ctx || !ctx->pmeth || !ctx->pmeth->derive) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	ctx->operation = EVP_PKEY_OP_DERIVE;
	if (!ctx->pmeth->derive_init)
		return 1;
	ret = ctx->pmeth->derive_init(ctx);
	if (ret <= 0)
		ctx->operation = EVP_PKEY_OP_UNDEFINED;
	return ret;
}

int
EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer)
{
	int ret;

	if (!ctx || !ctx->pmeth || !(ctx->pmeth->derive ||
	    ctx->pmeth->encrypt || ctx->pmeth->decrypt) ||
	    !ctx->pmeth->ctrl) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_DERIVE &&
	    ctx->operation != EVP_PKEY_OP_ENCRYPT &&
	    ctx->operation != EVP_PKEY_OP_DECRYPT) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}

	ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);

	if (ret <= 0)
		return ret;

	if (ret == 2)
		return 1;

	if (!ctx->pkey) {
		EVPerror(EVP_R_NO_KEY_SET);
		return -1;
	}

	if (ctx->pkey->type != peer->type) {
		EVPerror(EVP_R_DIFFERENT_KEY_TYPES);
		return -1;
	}

	/* ran@cryptocom.ru: For clarity.  The error is if parameters in peer are
	 * present (!missing) but don't match.  EVP_PKEY_cmp_parameters may return
	 * 1 (match), 0 (don't match) and -2 (comparison is not defined).  -1
	 * (different key types) is impossible here because it is checked earlier.
	 * -2 is OK for us here, as well as 1, so we can check for 0 only. */
	if (!EVP_PKEY_missing_parameters(peer) &&
	    !EVP_PKEY_cmp_parameters(ctx->pkey, peer)) {
		EVPerror(EVP_R_DIFFERENT_PARAMETERS);
		return -1;
	}

	EVP_PKEY_free(ctx->peerkey);
	ctx->peerkey = peer;

	ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);

	if (ret <= 0) {
		ctx->peerkey = NULL;
		return ret;
	}

	CRYPTO_add(&peer->references, 1, CRYPTO_LOCK_EVP_PKEY);
	return 1;
}

int
EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *pkeylen)
{
	if (!ctx || !ctx->pmeth || !ctx->pmeth->derive) {
		EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_DERIVE) {
		EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
		return -1;
	}
	M_check_autoarg(ctx, key, pkeylen, EVP_F_EVP_PKEY_DERIVE)
	return ctx->pmeth->derive(ctx, key, pkeylen);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: pmeth_fn.c,v 1.6 2017/01/29 17:49:23 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 <stdio.h>
60			#include <stdlib.h>
61
62			#include <openssl/err.h>
63			#include <openssl/evp.h>
64			#include <openssl/objects.h>
65
66			#include "evp_locl.h"
67
68			#define M_check_autoarg(ctx, arg, arglen, err) \
69			if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) \
70			{ \
71			size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \
72			if (!arg) \
73			{ \
74			*arglen = pksize; \
75			return 1; \
76			} \
77			else if (*arglen < pksize) \
78			{ \
79			EVPerror(EVP_R_BUFFER_TOO_SMALL); /ckerr_ignore/\
80			return 0; \
81			} \
82			}
83
84			int
85			EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
86			{
87			int ret;
88
89	✓✗✓✗ ✗✓	680	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->sign) {
90			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
91			return -2;
92			}
93		170	ctx->operation = EVP_PKEY_OP_SIGN;
94	✓✗	170	if (!ctx->pmeth->sign_init)
95		170	return 1;
96			ret = ctx->pmeth->sign_init(ctx);
97			if (ret <= 0)
98			ctx->operation = EVP_PKEY_OP_UNDEFINED;
99			return ret;
100		170	}
101
102			int
103			EVP_PKEY_sign(EVP_PKEY_CTX ctx, unsigned char sig, size_t *siglen,
104			const unsigned char *tbs, size_t tbslen)
105			{
106	✓✗✓✗ ✗✓	644	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->sign) {
107			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
108			return -2;
109			}
110	✗✓	161	if (ctx->operation != EVP_PKEY_OP_SIGN) {
111			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
112			return -1;
113			}
114	✓✗✓✓ ✗✓✓✓	632	M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
115		149	return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
116		161	}
117
118			int
119			EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
120			{
121			int ret;
122
123	✓✗✓✗ ✗✓	10272	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify) {
124			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
125			return -2;
126			}
127		2568	ctx->operation = EVP_PKEY_OP_VERIFY;
128	✓✗	2568	if (!ctx->pmeth->verify_init)
129		2568	return 1;
130			ret = ctx->pmeth->verify_init(ctx);
131			if (ret <= 0)
132			ctx->operation = EVP_PKEY_OP_UNDEFINED;
133			return ret;
134		2568	}
135
136			int
137			EVP_PKEY_verify(EVP_PKEY_CTX ctx, const unsigned char sig, size_t siglen,
138			const unsigned char *tbs, size_t tbslen)
139			{
140	✓✗✓✗ ✗✓	10272	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify) {
141			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
142			return -2;
143			}
144	✗✓	2568	if (ctx->operation != EVP_PKEY_OP_VERIFY) {
145			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
146			return -1;
147			}
148		2568	return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
149		2568	}
150
151			int
152			EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
153			{
154			int ret;
155
156	✓✗✓✗ ✗✓	8	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify_recover) {
157			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
158			return -2;
159			}
160		2	ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
161	✓✗	2	if (!ctx->pmeth->verify_recover_init)
162		2	return 1;
163			ret = ctx->pmeth->verify_recover_init(ctx);
164			if (ret <= 0)
165			ctx->operation = EVP_PKEY_OP_UNDEFINED;
166			return ret;
167		2	}
168
169			int
170			EVP_PKEY_verify_recover(EVP_PKEY_CTX ctx, unsigned char rout, size_t *routlen,
171			const unsigned char *sig, size_t siglen)
172			{
173	✓✗✓✗ ✗✓	16	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify_recover) {
174			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
175			return -2;
176			}
177	✗✓	4	if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
178			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
179			return -1;
180			}
181	✓✗✓✓ ✗✓✓✓	14	M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
182		2	return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
183		4	}
184
185			int
186			EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
187			{
188			int ret;
189
190	✓✗✓✗ ✗✓	12	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->encrypt) {
191			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
192			return -2;
193			}
194		3	ctx->operation = EVP_PKEY_OP_ENCRYPT;
195	✓✗	3	if (!ctx->pmeth->encrypt_init)
196		3	return 1;
197			ret = ctx->pmeth->encrypt_init(ctx);
198			if (ret <= 0)
199			ctx->operation = EVP_PKEY_OP_UNDEFINED;
200			return ret;
201		3	}
202
203			int
204			EVP_PKEY_encrypt(EVP_PKEY_CTX ctx, unsigned char out, size_t *outlen,
205			const unsigned char *in, size_t inlen)
206			{
207	✓✗✓✗ ✗✓	24	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->encrypt) {
208			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
209			return -2;
210			}
211	✗✓	6	if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
212			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
213			return -1;
214			}
215	✓✗✓✓ ✗✓✓✓	21	M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
216		3	return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
217		6	}
218
219			int
220			EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
221			{
222			int ret;
223
224	✓✗✓✗ ✗✓	12	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->decrypt) {
225			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
226			return -2;
227			}
228		3	ctx->operation = EVP_PKEY_OP_DECRYPT;
229	✓✗	3	if (!ctx->pmeth->decrypt_init)
230		3	return 1;
231			ret = ctx->pmeth->decrypt_init(ctx);
232			if (ret <= 0)
233			ctx->operation = EVP_PKEY_OP_UNDEFINED;
234			return ret;
235		3	}
236
237			int
238			EVP_PKEY_decrypt(EVP_PKEY_CTX ctx, unsigned char out, size_t *outlen,
239			const unsigned char *in, size_t inlen)
240			{
241	✓✗✓✗ ✗✓	24	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->decrypt) {
242			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
243			return -2;
244			}
245	✗✓	6	if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
246			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
247			return -1;
248			}
249	✓✗✓✓ ✗✓✓✓	21	M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
250		3	return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
251		6	}
252
253			int
254			EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx)
255			{
256			int ret;
257
258			if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->derive) {
259			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
260			return -2;
261			}
262			ctx->operation = EVP_PKEY_OP_DERIVE;
263			if (!ctx->pmeth->derive_init)
264			return 1;
265			ret = ctx->pmeth->derive_init(ctx);
266			if (ret <= 0)
267			ctx->operation = EVP_PKEY_OP_UNDEFINED;
268			return ret;
269			}
270
271			int
272			EVP_PKEY_derive_set_peer(EVP_PKEY_CTX ctx, EVP_PKEY peer)
273			{
274			int ret;
275
276			if (!ctx \|\| !ctx->pmeth \|\| !(ctx->pmeth->derive \|\|
277			ctx->pmeth->encrypt \|\| ctx->pmeth->decrypt) \|\|
278			!ctx->pmeth->ctrl) {
279			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
280			return -2;
281			}
282			if (ctx->operation != EVP_PKEY_OP_DERIVE &&
283			ctx->operation != EVP_PKEY_OP_ENCRYPT &&
284			ctx->operation != EVP_PKEY_OP_DECRYPT) {
285			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
286			return -1;
287			}
288
289			ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);
290
291			if (ret <= 0)
292			return ret;
293
294			if (ret == 2)
295			return 1;
296
297			if (!ctx->pkey) {
298			EVPerror(EVP_R_NO_KEY_SET);
299			return -1;
300			}
301
302			if (ctx->pkey->type != peer->type) {
303			EVPerror(EVP_R_DIFFERENT_KEY_TYPES);
304			return -1;
305			}
306
307			/* ran@cryptocom.ru: For clarity. The error is if parameters in peer are
308			* present (!missing) but don't match. EVP_PKEY_cmp_parameters may return
309			* 1 (match), 0 (don't match) and -2 (comparison is not defined). -1
310			* (different key types) is impossible here because it is checked earlier.
311			* -2 is OK for us here, as well as 1, so we can check for 0 only. */
312			if (!EVP_PKEY_missing_parameters(peer) &&
313			!EVP_PKEY_cmp_parameters(ctx->pkey, peer)) {
314			EVPerror(EVP_R_DIFFERENT_PARAMETERS);
315			return -1;
316			}
317
318			EVP_PKEY_free(ctx->peerkey);
319			ctx->peerkey = peer;
320
321			ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
322
323			if (ret <= 0) {
324			ctx->peerkey = NULL;
325			return ret;
326			}
327
328			CRYPTO_add(&peer->references, 1, CRYPTO_LOCK_EVP_PKEY);
329			return 1;
330			}
331
332			int
333			EVP_PKEY_derive(EVP_PKEY_CTX ctx, unsigned char key, size_t *pkeylen)
334			{
335			if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->derive) {
336			EVPerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
337			return -2;
338			}
339			if (ctx->operation != EVP_PKEY_OP_DERIVE) {
340			EVPerror(EVP_R_OPERATON_NOT_INITIALIZED);
341			return -1;
342			}
343			M_check_autoarg(ctx, key, pkeylen, EVP_F_EVP_PKEY_DERIVE)
344			return ctx->pmeth->derive(ctx, key, pkeylen);
345			}