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 %

Line Branch Exec Source
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/* $OpenBSD: e_rc4.c,v 1.14 2014/07/11 08:44:48 jsing Exp $ */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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 * All rights reserved.
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 *
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 * This package is an SSL implementation written
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 * by Eric Young (eay@cryptsoft.com).
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 * The implementation was written so as to conform with Netscapes SSL.
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 *
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 * This library is free for commercial and non-commercial use as long as
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 * the following conditions are aheared to.  The following conditions
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 * apply to all code found in this distribution, be it the RC4, RSA,
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 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
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 * included with this distribution is covered by the same copyright terms
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 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
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 *
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 * Copyright remains Eric Young's, and as such any Copyright notices in
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 * the code are not to be removed.
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 * If this package is used in a product, Eric Young should be given attribution
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 * as the author of the parts of the library used.
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 * This can be in the form of a textual message at program startup or
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 * in documentation (online or textual) provided with the package.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *    "This product includes cryptographic software written by
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 *     Eric Young (eay@cryptsoft.com)"
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 *    The word 'cryptographic' can be left out if the rouines from the library
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 *    being used are not cryptographic related :-).
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 * 4. If you include any Windows specific code (or a derivative thereof) from
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 *    the apps directory (application code) you must include an acknowledgement:
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 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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 *
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 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * The licence and distribution terms for any publically available version or
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 * derivative of this code cannot be changed.  i.e. this code cannot simply be
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 * copied and put under another distribution licence
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 * [including the GNU Public Licence.]
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 */
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#include <stdio.h>
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_RC4
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#include <openssl/evp.h>
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#include <openssl/objects.h>
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#include <openssl/rc4.h>
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#include "evp_locl.h"
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/* FIXME: surely this is available elsewhere? */
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#define EVP_RC4_KEY_SIZE		16
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typedef struct {
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    RC4_KEY ks;	/* working key */
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} EVP_RC4_KEY;
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#define data(ctx) ((EVP_RC4_KEY *)(ctx)->cipher_data)
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static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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    const unsigned char *iv, int enc);
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static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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    const unsigned char *in, size_t inl);
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static const EVP_CIPHER r4_cipher = {
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	NID_rc4,
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	1, EVP_RC4_KEY_SIZE, 0,
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	EVP_CIPH_VARIABLE_LENGTH,
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	rc4_init_key,
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	rc4_cipher,
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	NULL,
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	sizeof(EVP_RC4_KEY),
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	NULL,
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	NULL,
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	NULL,
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	NULL
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};
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static const EVP_CIPHER r4_40_cipher = {
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	NID_rc4_40,
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	1, 5 /* 40 bit */, 0,
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	EVP_CIPH_VARIABLE_LENGTH,
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	rc4_init_key,
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	rc4_cipher,
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	NULL,
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	sizeof(EVP_RC4_KEY),
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	NULL,
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	NULL,
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	NULL,
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	NULL
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};
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const EVP_CIPHER *
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EVP_rc4(void)
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{
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	return (&r4_cipher);
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}
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const EVP_CIPHER *
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EVP_rc4_40(void)
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{
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	return (&r4_40_cipher);
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}
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static int
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rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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    const unsigned char *iv, int enc)
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{
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	RC4_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
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	return 1;
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}
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static int
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rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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    const unsigned char *in, size_t inl)
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{
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	RC4(&data(ctx)->ks, inl, in, out);
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	return 1;
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}
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#endif