Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/evp/pmeth_fn.c	Lines:	39	143	27.3 %
Date:	2016-12-06	Branches:	44	168	26.2 %


/* $OpenBSD: pmeth_fn.c,v 1.5 2014/07/12 16:03:37 miod 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) \
			{ \
			EVPerr(err, 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) {
		EVPerr(EVP_F_EVP_PKEY_SIGN_INIT,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_SIGN,
		    EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_SIGN) {
		EVPerr(EVP_F_EVP_PKEY_SIGN, 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) {
		EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_VERIFY,
		    EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_VERIFY) {
		EVPerr(EVP_F_EVP_PKEY_VERIFY, 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) {
		EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
		    EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
		EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
		    EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
		EVPerr(EVP_F_EVP_PKEY_ENCRYPT, 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) {
		EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_DECRYPT,
		    EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
		EVPerr(EVP_F_EVP_PKEY_DECRYPT, 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) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE_INIT,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
		return -1;
	}

	if (ctx->pkey->type != peer->type) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
		    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)) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
		    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) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE,
		    EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
		return -2;
	}
	if (ctx->operation != EVP_PKEY_OP_DERIVE) {
		EVPerr(EVP_F_EVP_PKEY_DERIVE, 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 1.5 2014/07/12 16:03:37 miod 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			EVPerr(err, 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		2	{
87			int ret;
88
89	✓✗✓✗ ✗✓	2	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->sign) {
90			EVPerr(EVP_F_EVP_PKEY_SIGN_INIT,
91			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
92			return -2;
93			}
94		2	ctx->operation = EVP_PKEY_OP_SIGN;
95	✓✗	2	if (!ctx->pmeth->sign_init)
96		2	return 1;
97			ret = ctx->pmeth->sign_init(ctx);
98			if (ret <= 0)
99			ctx->operation = EVP_PKEY_OP_UNDEFINED;
100			return ret;
101			}
102
103			int
104			EVP_PKEY_sign(EVP_PKEY_CTX ctx, unsigned char sig, size_t *siglen,
105			const unsigned char *tbs, size_t tbslen)
106		4	{
107	✓✗✓✗ ✗✓	4	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->sign) {
108			EVPerr(EVP_F_EVP_PKEY_SIGN,
109			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
110			return -2;
111			}
112	✗✓	4	if (ctx->operation != EVP_PKEY_OP_SIGN) {
113			EVPerr(EVP_F_EVP_PKEY_SIGN, EVP_R_OPERATON_NOT_INITIALIZED);
114			return -1;
115			}
116	✓✗✓✓ ✗✓	4	M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
117		2	return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
118			}
119
120			int
121			EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
122		11	{
123			int ret;
124
125	✓✗✓✗ ✗✓	11	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify) {
126			EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
127			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
128			return -2;
129			}
130		11	ctx->operation = EVP_PKEY_OP_VERIFY;
131	✓✗	11	if (!ctx->pmeth->verify_init)
132		11	return 1;
133			ret = ctx->pmeth->verify_init(ctx);
134			if (ret <= 0)
135			ctx->operation = EVP_PKEY_OP_UNDEFINED;
136			return ret;
137			}
138
139			int
140			EVP_PKEY_verify(EVP_PKEY_CTX ctx, const unsigned char sig, size_t siglen,
141			const unsigned char *tbs, size_t tbslen)
142		11	{
143	✓✗✓✗ ✗✓	11	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify) {
144			EVPerr(EVP_F_EVP_PKEY_VERIFY,
145			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
146			return -2;
147			}
148	✗✓	11	if (ctx->operation != EVP_PKEY_OP_VERIFY) {
149			EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED);
150			return -1;
151			}
152		11	return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
153			}
154
155			int
156			EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
157			{
158			int ret;
159
160			if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify_recover) {
161			EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
162			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
163			return -2;
164			}
165			ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
166			if (!ctx->pmeth->verify_recover_init)
167			return 1;
168			ret = ctx->pmeth->verify_recover_init(ctx);
169			if (ret <= 0)
170			ctx->operation = EVP_PKEY_OP_UNDEFINED;
171			return ret;
172			}
173
174			int
175			EVP_PKEY_verify_recover(EVP_PKEY_CTX ctx, unsigned char rout, size_t *routlen,
176			const unsigned char *sig, size_t siglen)
177			{
178			if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->verify_recover) {
179			EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
180			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
181			return -2;
182			}
183			if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
184			EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
185			EVP_R_OPERATON_NOT_INITIALIZED);
186			return -1;
187			}
188			M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
189			return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
190			}
191
192			int
193			EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
194		1	{
195			int ret;
196
197	✓✗✓✗ ✗✓	1	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->encrypt) {
198			EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
199			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
200			return -2;
201			}
202		1	ctx->operation = EVP_PKEY_OP_ENCRYPT;
203	✓✗	1	if (!ctx->pmeth->encrypt_init)
204		1	return 1;
205			ret = ctx->pmeth->encrypt_init(ctx);
206			if (ret <= 0)
207			ctx->operation = EVP_PKEY_OP_UNDEFINED;
208			return ret;
209			}
210
211			int
212			EVP_PKEY_encrypt(EVP_PKEY_CTX ctx, unsigned char out, size_t *outlen,
213			const unsigned char *in, size_t inlen)
214		2	{
215	✓✗✓✗ ✗✓	2	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->encrypt) {
216			EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
217			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
218			return -2;
219			}
220	✗✓	2	if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
221			EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
222			return -1;
223			}
224	✓✗✓✓ ✗✓	2	M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
225		1	return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
226			}
227
228			int
229			EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
230		1	{
231			int ret;
232
233	✓✗✓✗ ✗✓	1	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->decrypt) {
234			EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
235			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
236			return -2;
237			}
238		1	ctx->operation = EVP_PKEY_OP_DECRYPT;
239	✓✗	1	if (!ctx->pmeth->decrypt_init)
240		1	return 1;
241			ret = ctx->pmeth->decrypt_init(ctx);
242			if (ret <= 0)
243			ctx->operation = EVP_PKEY_OP_UNDEFINED;
244			return ret;
245			}
246
247			int
248			EVP_PKEY_decrypt(EVP_PKEY_CTX ctx, unsigned char out, size_t *outlen,
249			const unsigned char *in, size_t inlen)
250		2	{
251	✓✗✓✗ ✗✓	2	if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->decrypt) {
252			EVPerr(EVP_F_EVP_PKEY_DECRYPT,
253			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
254			return -2;
255			}
256	✗✓	2	if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
257			EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
258			return -1;
259			}
260	✓✗✓✓ ✗✓	2	M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
261		1	return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
262			}
263
264			int
265			EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx)
266			{
267			int ret;
268
269			if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->derive) {
270			EVPerr(EVP_F_EVP_PKEY_DERIVE_INIT,
271			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
272			return -2;
273			}
274			ctx->operation = EVP_PKEY_OP_DERIVE;
275			if (!ctx->pmeth->derive_init)
276			return 1;
277			ret = ctx->pmeth->derive_init(ctx);
278			if (ret <= 0)
279			ctx->operation = EVP_PKEY_OP_UNDEFINED;
280			return ret;
281			}
282
283			int
284			EVP_PKEY_derive_set_peer(EVP_PKEY_CTX ctx, EVP_PKEY peer)
285			{
286			int ret;
287
288			if (!ctx \|\| !ctx->pmeth \|\| !(ctx->pmeth->derive \|\|
289			ctx->pmeth->encrypt \|\| ctx->pmeth->decrypt) \|\|
290			!ctx->pmeth->ctrl) {
291			EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
292			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
293			return -2;
294			}
295			if (ctx->operation != EVP_PKEY_OP_DERIVE &&
296			ctx->operation != EVP_PKEY_OP_ENCRYPT &&
297			ctx->operation != EVP_PKEY_OP_DECRYPT) {
298			EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
299			EVP_R_OPERATON_NOT_INITIALIZED);
300			return -1;
301			}
302
303			ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);
304
305			if (ret <= 0)
306			return ret;
307
308			if (ret == 2)
309			return 1;
310
311			if (!ctx->pkey) {
312			EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
313			return -1;
314			}
315
316			if (ctx->pkey->type != peer->type) {
317			EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
318			EVP_R_DIFFERENT_KEY_TYPES);
319			return -1;
320			}
321
322			/* ran@cryptocom.ru: For clarity. The error is if parameters in peer are
323			* present (!missing) but don't match. EVP_PKEY_cmp_parameters may return
324			* 1 (match), 0 (don't match) and -2 (comparison is not defined). -1
325			* (different key types) is impossible here because it is checked earlier.
326			* -2 is OK for us here, as well as 1, so we can check for 0 only. */
327			if (!EVP_PKEY_missing_parameters(peer) &&
328			!EVP_PKEY_cmp_parameters(ctx->pkey, peer)) {
329			EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
330			EVP_R_DIFFERENT_PARAMETERS);
331			return -1;
332			}
333
334			EVP_PKEY_free(ctx->peerkey);
335			ctx->peerkey = peer;
336
337			ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
338
339			if (ret <= 0) {
340			ctx->peerkey = NULL;
341			return ret;
342			}
343
344			CRYPTO_add(&peer->references, 1, CRYPTO_LOCK_EVP_PKEY);
345			return 1;
346			}
347
348			int
349			EVP_PKEY_derive(EVP_PKEY_CTX ctx, unsigned char key, size_t *pkeylen)
350			{
351			if (!ctx \|\| !ctx->pmeth \|\| !ctx->pmeth->derive) {
352			EVPerr(EVP_F_EVP_PKEY_DERIVE,
353			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
354			return -2;
355			}
356			if (ctx->operation != EVP_PKEY_OP_DERIVE) {
357			EVPerr(EVP_F_EVP_PKEY_DERIVE, EVP_R_OPERATON_NOT_INITIALIZED);
358			return -1;
359			}
360			M_check_autoarg(ctx, key, pkeylen, EVP_F_EVP_PKEY_DERIVE)
361			return ctx->pmeth->derive(ctx, key, pkeylen);
362			}