Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/evp/e_rc4.c	Lines:	6	6	100.0 %
Date:	2017-11-07	Branches:	0	0	0.0 %


/* $OpenBSD: e_rc4.c,v 1.14 2014/07/11 08:44:48 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS 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 AUTHOR OR 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.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_RC4

#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/rc4.h>

#include "evp_locl.h"

/* FIXME: surely this is available elsewhere? */
#define EVP_RC4_KEY_SIZE		16

typedef struct {
    RC4_KEY ks;	/* working key */
} EVP_RC4_KEY;

#define data(ctx) ((EVP_RC4_KEY *)(ctx)->cipher_data)

static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
    const unsigned char *iv, int enc);
static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
    const unsigned char *in, size_t inl);

static const EVP_CIPHER r4_cipher = {
	NID_rc4,
	1, EVP_RC4_KEY_SIZE, 0,
	EVP_CIPH_VARIABLE_LENGTH,
	rc4_init_key,
	rc4_cipher,
	NULL,
	sizeof(EVP_RC4_KEY),
	NULL,
	NULL,
	NULL,
	NULL
};

static const EVP_CIPHER r4_40_cipher = {
	NID_rc4_40,
	1, 5 /* 40 bit */, 0,
	EVP_CIPH_VARIABLE_LENGTH,
	rc4_init_key,
	rc4_cipher,
	NULL,
	sizeof(EVP_RC4_KEY),
	NULL,
	NULL,
	NULL,
	NULL
};

const EVP_CIPHER *
EVP_rc4(void)
{
	return (&r4_cipher);
}

const EVP_CIPHER *
EVP_rc4_40(void)
{
	return (&r4_40_cipher);
}

static int
rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
    const unsigned char *iv, int enc)
{
	RC4_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
	return 1;
}

static int
rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
    const unsigned char *in, size_t inl)
{
	RC4(&data(ctx)->ks, inl, in, out);
	return 1;
}
#endif


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: e_rc4.c,v 1.14 2014/07/11 08:44:48 jsing Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3			* All rights reserved.
4			*
5			* This package is an SSL implementation written
6			* by Eric Young (eay@cryptsoft.com).
7			* The implementation was written so as to conform with Netscapes SSL.
8			*
9			* This library is free for commercial and non-commercial use as long as
10			* the following conditions are aheared to. The following conditions
11			* apply to all code found in this distribution, be it the RC4, RSA,
12			* lhash, DES, etc., code; not just the SSL code. The SSL documentation
13			* included with this distribution is covered by the same copyright terms
14			* except that the holder is Tim Hudson (tjh@cryptsoft.com).
15			*
16			* Copyright remains Eric Young's, and as such any Copyright notices in
17			* the code are not to be removed.
18			* If this package is used in a product, Eric Young should be given attribution
19			* as the author of the parts of the library used.
20			* This can be in the form of a textual message at program startup or
21			* in documentation (online or textual) provided with the package.
22			*
23			* Redistribution and use in source and binary forms, with or without
24			* modification, are permitted provided that the following conditions
25			* are met:
26			* 1. Redistributions of source code must retain the copyright
27			* notice, this list of conditions and the following disclaimer.
28			* 2. Redistributions in binary form must reproduce the above copyright
29			* notice, this list of conditions and the following disclaimer in the
30			* documentation and/or other materials provided with the distribution.
31			* 3. All advertising materials mentioning features or use of this software
32			* must display the following acknowledgement:
33			* "This product includes cryptographic software written by
34			* Eric Young (eay@cryptsoft.com)"
35			* The word 'cryptographic' can be left out if the rouines from the library
36			* being used are not cryptographic related :-).
37			* 4. If you include any Windows specific code (or a derivative thereof) from
38			* the apps directory (application code) you must include an acknowledgement:
39			* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40			*
41			* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51			* SUCH DAMAGE.
52			*
53			* The licence and distribution terms for any publically available version or
54			* derivative of this code cannot be changed. i.e. this code cannot simply be
55			* copied and put under another distribution licence
56			* [including the GNU Public Licence.]
57			*/
58
59			#include <stdio.h>
60
61			#include <openssl/opensslconf.h>
62
63			#ifndef OPENSSL_NO_RC4
64
65			#include <openssl/evp.h>
66			#include <openssl/objects.h>
67			#include <openssl/rc4.h>
68
69			#include "evp_locl.h"
70
71			/* FIXME: surely this is available elsewhere? */
72			#define EVP_RC4_KEY_SIZE 16
73
74			typedef struct {
75			RC4_KEY ks; /* working key */
76			} EVP_RC4_KEY;
77
78			#define data(ctx) ((EVP_RC4_KEY *)(ctx)->cipher_data)
79
80			static int rc4_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
81			const unsigned char *iv, int enc);
82			static int rc4_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
83			const unsigned char *in, size_t inl);
84
85			static const EVP_CIPHER r4_cipher = {
86			NID_rc4,
87			1, EVP_RC4_KEY_SIZE, 0,
88			EVP_CIPH_VARIABLE_LENGTH,
89			rc4_init_key,
90			rc4_cipher,
91			NULL,
92			sizeof(EVP_RC4_KEY),
93			NULL,
94			NULL,
95			NULL,
96			NULL
97			};
98
99			static const EVP_CIPHER r4_40_cipher = {
100			NID_rc4_40,
101			1, 5 /* 40 bit */, 0,
102			EVP_CIPH_VARIABLE_LENGTH,
103			rc4_init_key,
104			rc4_cipher,
105			NULL,
106			sizeof(EVP_RC4_KEY),
107			NULL,
108			NULL,
109			NULL,
110			NULL
111			};
112
113			const EVP_CIPHER *
114			EVP_rc4(void)
115			{
116		9036	return (&r4_cipher);
117			}
118
119			const EVP_CIPHER *
120			EVP_rc4_40(void)
121			{
122		3106	return (&r4_40_cipher);
123			}
124
125			static int
126			rc4_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
127			const unsigned char *iv, int enc)
128			{
129		192	RC4_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
130		96	return 1;
131			}
132
133			static int
134			rc4_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
135			const unsigned char *in, size_t inl)
136			{
137		384	RC4(&data(ctx)->ks, inl, in, out);
138		192	return 1;
139			}
140			#endif