GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/evp/evp_lib.c Lines: 59 81 72.8 %
Date: 2017-11-13 Branches: 18 49 36.7 %

Line Branch Exec Source
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/* $OpenBSD: evp_lib.c,v 1.15 2017/01/29 17:49:23 beck 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 <string.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/objects.h>
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int
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EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
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{
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	int ret;
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38
	if (c->cipher->set_asn1_parameters != NULL)
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2
		ret = c->cipher->set_asn1_parameters(c, type);
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	else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
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		ret = EVP_CIPHER_set_asn1_iv(c, type);
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	else
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		ret = -1;
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	return (ret);
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}
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int
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EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
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{
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	int ret;
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	if (c->cipher->get_asn1_parameters != NULL)
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2
		ret = c->cipher->get_asn1_parameters(c, type);
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	else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
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		ret = EVP_CIPHER_get_asn1_iv(c, type);
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	else
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		ret = -1;
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	return (ret);
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}
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int
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EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
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{
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	int i = 0;
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	unsigned int l;
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	if (type != NULL) {
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		l = EVP_CIPHER_CTX_iv_length(c);
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		if (l > sizeof(c->iv)) {
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			EVPerror(EVP_R_IV_TOO_LARGE);
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			return 0;
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		}
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		i = ASN1_TYPE_get_octetstring(type, c->oiv, l);
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		if (i != (int)l)
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			return (-1);
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		else if (i > 0)
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			memcpy(c->iv, c->oiv, l);
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	}
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	return (i);
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}
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int
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EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
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{
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	int i = 0;
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	unsigned int j;
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	if (type != NULL) {
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		j = EVP_CIPHER_CTX_iv_length(c);
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		if (j > sizeof(c->iv)) {
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			EVPerror(EVP_R_IV_TOO_LARGE);
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			return 0;
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		}
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		i = ASN1_TYPE_set_octetstring(type, c->oiv, j);
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	}
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	return (i);
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}
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/* Convert the various cipher NIDs and dummies to a proper OID NID */
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int
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EVP_CIPHER_type(const EVP_CIPHER *ctx)
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{
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	int nid;
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	ASN1_OBJECT *otmp;
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	nid = EVP_CIPHER_nid(ctx);
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	switch (nid) {
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	case NID_rc2_cbc:
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	case NID_rc2_64_cbc:
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	case NID_rc2_40_cbc:
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		return NID_rc2_cbc;
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	case NID_rc4:
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	case NID_rc4_40:
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		return NID_rc4;
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	case NID_aes_128_cfb128:
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	case NID_aes_128_cfb8:
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	case NID_aes_128_cfb1:
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		return NID_aes_128_cfb128;
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	case NID_aes_192_cfb128:
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	case NID_aes_192_cfb8:
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	case NID_aes_192_cfb1:
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		return NID_aes_192_cfb128;
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	case NID_aes_256_cfb128:
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	case NID_aes_256_cfb8:
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	case NID_aes_256_cfb1:
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		return NID_aes_256_cfb128;
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	case NID_des_cfb64:
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	case NID_des_cfb8:
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	case NID_des_cfb1:
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		return NID_des_cfb64;
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	case NID_des_ede3_cfb64:
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	case NID_des_ede3_cfb8:
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	case NID_des_ede3_cfb1:
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		return NID_des_cfb64;
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	default:
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		/* Check it has an OID and it is valid */
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		otmp = OBJ_nid2obj(nid);
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		if (!otmp || !otmp->data)
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			nid = NID_undef;
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		ASN1_OBJECT_free(otmp);
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		return nid;
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	}
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}
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int
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EVP_CIPHER_block_size(const EVP_CIPHER *e)
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{
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	return e->block_size;
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}
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int
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EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
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{
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	return ctx->cipher->block_size;
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}
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int
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EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in,
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    unsigned int inl)
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{
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	return ctx->cipher->do_cipher(ctx, out, in, inl);
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}
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const EVP_CIPHER *
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EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
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{
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	return ctx->cipher;
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}
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unsigned long
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EVP_CIPHER_flags(const EVP_CIPHER *cipher)
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{
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	return cipher->flags;
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}
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unsigned long
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EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
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{
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	return ctx->cipher->flags;
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}
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void *
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EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
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{
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	return ctx->app_data;
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}
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void
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EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
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{
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	ctx->app_data = data;
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}
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int
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EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
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{
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	return cipher->iv_len;
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}
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int
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EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
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{
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13588
	return ctx->cipher->iv_len;
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}
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int
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EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
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{
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	return cipher->key_len;
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}
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int
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EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
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{
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	return ctx->key_len;
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}
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int
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EVP_CIPHER_nid(const EVP_CIPHER *cipher)
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{
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	return cipher->nid;
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}
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int
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EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
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{
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	return ctx->cipher->nid;
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}
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int
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EVP_MD_block_size(const EVP_MD *md)
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{
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	return md->block_size;
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}
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int
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EVP_MD_type(const EVP_MD *md)
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{
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7344
	return md->type;
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}
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int
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EVP_MD_pkey_type(const EVP_MD *md)
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{
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	return md->pkey_type;
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}
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int
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EVP_MD_size(const EVP_MD *md)
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{
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656408
	if (!md) {
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		EVPerror(EVP_R_MESSAGE_DIGEST_IS_NULL);
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		return -1;
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	}
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328204
	return md->md_size;
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328204
}
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unsigned long
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EVP_MD_flags(const EVP_MD *md)
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{
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	return md->flags;
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}
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const EVP_MD *
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EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
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{
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624438
	if (!ctx)
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		return NULL;
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240339
	return ctx->digest;
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312219
}
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void
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EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
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{
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2766430
	ctx->flags |= flags;
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1383215
}
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void
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EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
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{
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1269634
	ctx->flags &= ~flags;
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634817
}
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int
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EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
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{
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4914136
	return (ctx->flags & flags);
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}
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void
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EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
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{
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	ctx->flags |= flags;
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}
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void
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EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
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{
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	ctx->flags &= ~flags;
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}
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int
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EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
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{
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	return (ctx->flags & flags);
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}