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Applied OpenSSL: CTR Mode in File Encryption

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22 Feb 2011CPOL6 min read 64.9K   2K   39  
In this article, the use of open source OpenSSL library for file and disk encryption is described
/* crypto/evp/evp.h */
/* 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.]
 */

#ifndef HEADER_ENVELOPE_H
#define HEADER_ENVELOPE_H

#ifdef OPENSSL_ALGORITHM_DEFINES
# include <openssl/opensslconf.h>
#else
# define OPENSSL_ALGORITHM_DEFINES
# include <openssl/opensslconf.h>
# undef OPENSSL_ALGORITHM_DEFINES
#endif

#include <openssl/ossl_typ.h>

#include <openssl/symhacks.h>

#ifndef OPENSSL_NO_BIO
#include <openssl/bio.h>
#endif

/*
#define EVP_RC2_KEY_SIZE		16
#define EVP_RC4_KEY_SIZE		16
#define EVP_BLOWFISH_KEY_SIZE		16
#define EVP_CAST5_KEY_SIZE		16
#define EVP_RC5_32_12_16_KEY_SIZE	16
*/
#define EVP_MAX_MD_SIZE			64	/* longest known is SHA512 */
#define EVP_MAX_KEY_LENGTH		32
#define EVP_MAX_IV_LENGTH		16
#define EVP_MAX_BLOCK_LENGTH		32

#define PKCS5_SALT_LEN			8
/* Default PKCS#5 iteration count */
#define PKCS5_DEFAULT_ITER		2048

#include <openssl/objects.h>

#define EVP_PK_RSA	0x0001
#define EVP_PK_DSA	0x0002
#define EVP_PK_DH	0x0004
#define EVP_PK_EC	0x0008
#define EVP_PKT_SIGN	0x0010
#define EVP_PKT_ENC	0x0020
#define EVP_PKT_EXCH	0x0040
#define EVP_PKS_RSA	0x0100
#define EVP_PKS_DSA	0x0200
#define EVP_PKS_EC	0x0400
#define EVP_PKT_EXP	0x1000 /* <= 512 bit key */

#define EVP_PKEY_NONE	NID_undef
#define EVP_PKEY_RSA	NID_rsaEncryption
#define EVP_PKEY_RSA2	NID_rsa
#define EVP_PKEY_DSA	NID_dsa
#define EVP_PKEY_DSA1	NID_dsa_2
#define EVP_PKEY_DSA2	NID_dsaWithSHA
#define EVP_PKEY_DSA3	NID_dsaWithSHA1
#define EVP_PKEY_DSA4	NID_dsaWithSHA1_2
#define EVP_PKEY_DH	NID_dhKeyAgreement
#define EVP_PKEY_EC	NID_X9_62_id_ecPublicKey
#define EVP_PKEY_HMAC	NID_hmac

#ifdef	__cplusplus
extern "C" {
#endif

/* Type needs to be a bit field
 * Sub-type needs to be for variations on the method, as in, can it do
 * arbitrary encryption.... */
struct evp_pkey_st
	{
	int type;
	int save_type;
	int references;
	const EVP_PKEY_ASN1_METHOD *ameth;
	ENGINE *engine;
	union	{
		char *ptr;
#ifndef OPENSSL_NO_RSA
		struct rsa_st *rsa;	/* RSA */
#endif
#ifndef OPENSSL_NO_DSA
		struct dsa_st *dsa;	/* DSA */
#endif
#ifndef OPENSSL_NO_DH
		struct dh_st *dh;	/* DH */
#endif
#ifndef OPENSSL_NO_EC
		struct ec_key_st *ec;	/* ECC */
#endif
		} pkey;
	int save_parameters;
	STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
	} /* EVP_PKEY */;

#define EVP_PKEY_MO_SIGN	0x0001
#define EVP_PKEY_MO_VERIFY	0x0002
#define EVP_PKEY_MO_ENCRYPT	0x0004
#define EVP_PKEY_MO_DECRYPT	0x0008

#ifndef EVP_MD
struct env_md_st
	{
	int type;
	int pkey_type;
	int md_size;
	unsigned long flags;
	int (*init)(EVP_MD_CTX *ctx);
	int (*update)(EVP_MD_CTX *ctx,const void *data,size_t count);
	int (*final)(EVP_MD_CTX *ctx,unsigned char *md);
	int (*copy)(EVP_MD_CTX *to,const EVP_MD_CTX *from);
	int (*cleanup)(EVP_MD_CTX *ctx);

	/* FIXME: prototype these some day */
	int (*sign)(int type, const unsigned char *m, unsigned int m_length,
		    unsigned char *sigret, unsigned int *siglen, void *key);
	int (*verify)(int type, const unsigned char *m, unsigned int m_length,
		      const unsigned char *sigbuf, unsigned int siglen,
		      void *key);
	int required_pkey_type[5]; /*EVP_PKEY_xxx */
	int block_size;
	int ctx_size; /* how big does the ctx->md_data need to be */
	/* control function */
	int (*md_ctrl)(EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
	} /* EVP_MD */;

typedef int evp_sign_method(int type,const unsigned char *m,
			    unsigned int m_length,unsigned char *sigret,
			    unsigned int *siglen, void *key);
typedef int evp_verify_method(int type,const unsigned char *m,
			    unsigned int m_length,const unsigned char *sigbuf,
			    unsigned int siglen, void *key);

#define EVP_MD_FLAG_ONESHOT	0x0001 /* digest can only handle a single
					* block */

#define EVP_MD_FLAG_PKEY_DIGEST	0x0002 /* digest is a "clone" digest used
					* which is a copy of an existing
					* one for a specific public key type.
					* EVP_dss1() etc */

/* Digest uses EVP_PKEY_METHOD for signing instead of MD specific signing */

#define EVP_MD_FLAG_PKEY_METHOD_SIGNATURE	0x0004

/* DigestAlgorithmIdentifier flags... */

#define EVP_MD_FLAG_DIGALGID_MASK		0x0018

/* NULL or absent parameter accepted. Use NULL */

#define EVP_MD_FLAG_DIGALGID_NULL		0x0000

/* NULL or absent parameter accepted. Use NULL for PKCS#1 otherwise absent */

#define EVP_MD_FLAG_DIGALGID_ABSENT		0x0008

/* Custom handling via ctrl */

#define EVP_MD_FLAG_DIGALGID_CUSTOM		0x0018

/* Digest ctrls */

#define	EVP_MD_CTRL_DIGALGID			0x1
#define	EVP_MD_CTRL_MICALG			0x2

/* Minimum Algorithm specific ctrl value */

#define	EVP_MD_CTRL_ALG_CTRL			0x1000

#define EVP_PKEY_NULL_method	NULL,NULL,{0,0,0,0}

#ifndef OPENSSL_NO_DSA
#define EVP_PKEY_DSA_method	(evp_sign_method *)DSA_sign, \
				(evp_verify_method *)DSA_verify, \
				{EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
					EVP_PKEY_DSA4,0}
#else
#define EVP_PKEY_DSA_method	EVP_PKEY_NULL_method
#endif

#ifndef OPENSSL_NO_ECDSA
#define EVP_PKEY_ECDSA_method   (evp_sign_method *)ECDSA_sign, \
				(evp_verify_method *)ECDSA_verify, \
                                 {EVP_PKEY_EC,0,0,0}
#else   
#define EVP_PKEY_ECDSA_method   EVP_PKEY_NULL_method
#endif

#ifndef OPENSSL_NO_RSA
#define EVP_PKEY_RSA_method	(evp_sign_method *)RSA_sign, \
				(evp_verify_method *)RSA_verify, \
				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
#define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
				(evp_sign_method *)RSA_sign_ASN1_OCTET_STRING, \
				(evp_verify_method *)RSA_verify_ASN1_OCTET_STRING, \
				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
#else
#define EVP_PKEY_RSA_method	EVP_PKEY_NULL_method
#define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
#endif

#endif /* !EVP_MD */

struct env_md_ctx_st
	{
	const EVP_MD *digest;
	ENGINE *engine; /* functional reference if 'digest' is ENGINE-provided */
	unsigned long flags;
	void *md_data;
	/* Public key context for sign/verify */
	EVP_PKEY_CTX *pctx;
	/* Update function: usually copied from EVP_MD */
	int (*update)(EVP_MD_CTX *ctx,const void *data,size_t count);
	} /* EVP_MD_CTX */;

/* values for EVP_MD_CTX flags */

#define EVP_MD_CTX_FLAG_ONESHOT		0x0001 /* digest update will be called
						* once only */
#define EVP_MD_CTX_FLAG_CLEANED		0x0002 /* context has already been
						* cleaned */
#define EVP_MD_CTX_FLAG_REUSE		0x0004 /* Don't free up ctx->md_data
						* in EVP_MD_CTX_cleanup */
/* FIPS and pad options are ignored in 1.0.0, definitions are here
 * so we don't accidentally reuse the values for other purposes.
 */

#define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW	0x0008	/* Allow use of non FIPS digest
						 * in FIPS mode */

/* The following PAD options are also currently ignored in 1.0.0, digest
 * parameters are handled through EVP_DigestSign*() and EVP_DigestVerify*()
 * instead.
 */
#define EVP_MD_CTX_FLAG_PAD_MASK	0xF0	/* RSA mode to use */
#define EVP_MD_CTX_FLAG_PAD_PKCS1	0x00	/* PKCS#1 v1.5 mode */
#define EVP_MD_CTX_FLAG_PAD_X931	0x10	/* X9.31 mode */
#define EVP_MD_CTX_FLAG_PAD_PSS		0x20	/* PSS mode */

#define EVP_MD_CTX_FLAG_NO_INIT		0x0100 /* Don't initialize md_data */

struct evp_cipher_st
	{
	int nid;
	int block_size;
	int key_len;		/* Default value for variable length ciphers */
	int iv_len;
	unsigned long flags;	/* Various flags */
	int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
		    const unsigned char *iv, int enc);	/* init key */
	int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
			 const unsigned char *in, size_t inl);/* encrypt/decrypt data */
	int (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */
	int ctx_size;		/* how big ctx->cipher_data needs to be */
	int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */
	int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */
	int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */
	void *app_data;		/* Application data */
	} /* EVP_CIPHER */;

/* Values for cipher flags */

/* Modes for ciphers */

#define		EVP_CIPH_STREAM_CIPHER		0x0
#define		EVP_CIPH_ECB_MODE		0x1
#define		EVP_CIPH_CBC_MODE		0x2
#define		EVP_CIPH_CFB_MODE		0x3
#define		EVP_CIPH_OFB_MODE		0x4
#define 	EVP_CIPH_MODE			0xF0007
/* Set if variable length cipher */
#define 	EVP_CIPH_VARIABLE_LENGTH	0x8
/* Set if the iv handling should be done by the cipher itself */
#define 	EVP_CIPH_CUSTOM_IV		0x10
/* Set if the cipher's init() function should be called if key is NULL */
#define 	EVP_CIPH_ALWAYS_CALL_INIT	0x20
/* Call ctrl() to init cipher parameters */
#define 	EVP_CIPH_CTRL_INIT		0x40
/* Don't use standard key length function */
#define 	EVP_CIPH_CUSTOM_KEY_LENGTH	0x80
/* Don't use standard block padding */
#define 	EVP_CIPH_NO_PADDING		0x100
/* cipher handles random key generation */
#define 	EVP_CIPH_RAND_KEY		0x200
/* cipher has its own additional copying logic */
#define 	EVP_CIPH_CUSTOM_COPY		0x400
/* Allow use default ASN1 get/set iv */
#define		EVP_CIPH_FLAG_DEFAULT_ASN1	0x1000
/* Buffer length in bits not bytes: CFB1 mode only */
#define		EVP_CIPH_FLAG_LENGTH_BITS	0x2000

/* ctrl() values */

#define		EVP_CTRL_INIT			0x0
#define 	EVP_CTRL_SET_KEY_LENGTH		0x1
#define 	EVP_CTRL_GET_RC2_KEY_BITS	0x2
#define 	EVP_CTRL_SET_RC2_KEY_BITS	0x3
#define 	EVP_CTRL_GET_RC5_ROUNDS		0x4
#define 	EVP_CTRL_SET_RC5_ROUNDS		0x5
#define 	EVP_CTRL_RAND_KEY		0x6
#define 	EVP_CTRL_PBE_PRF_NID		0x7
#define 	EVP_CTRL_COPY			0x8

typedef struct evp_cipher_info_st
	{
	const EVP_CIPHER *cipher;
	unsigned char iv[EVP_MAX_IV_LENGTH];
	} EVP_CIPHER_INFO;

struct evp_cipher_ctx_st
	{
	const EVP_CIPHER *cipher;
	ENGINE *engine;	/* functional reference if 'cipher' is ENGINE-provided */
	int encrypt;		/* encrypt or decrypt */
	int buf_len;		/* number we have left */

	unsigned char  oiv[EVP_MAX_IV_LENGTH];	/* original iv */
	unsigned char  iv[EVP_MAX_IV_LENGTH];	/* working iv */
	unsigned char buf[EVP_MAX_BLOCK_LENGTH];/* saved partial block */
	int num;				/* used by cfb/ofb mode */

	void *app_data;		/* application stuff */
	int key_len;		/* May change for variable length cipher */
	unsigned long flags;	/* Various flags */
	void *cipher_data; /* per EVP data */
	int final_used;
	int block_mask;
	unsigned char final[EVP_MAX_BLOCK_LENGTH];/* possible final block */
	} /* EVP_CIPHER_CTX */;

typedef struct evp_Encode_Ctx_st
	{
	int num;	/* number saved in a partial encode/decode */
	int length;	/* The length is either the output line length
			 * (in input bytes) or the shortest input line
			 * length that is ok.  Once decoding begins,
			 * the length is adjusted up each time a longer
			 * line is decoded */
	unsigned char enc_data[80];	/* data to encode */
	int line_num;	/* number read on current line */
	int expect_nl;
	} EVP_ENCODE_CTX;

/* Password based encryption function */
typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
		ASN1_TYPE *param, const EVP_CIPHER *cipher,
                const EVP_MD *md, int en_de);

#ifndef OPENSSL_NO_RSA
#define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
					(char *)(rsa))
#endif

#ifndef OPENSSL_NO_DSA
#define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
					(char *)(dsa))
#endif

#ifndef OPENSSL_NO_DH
#define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
					(char *)(dh))
#endif

#ifndef OPENSSL_NO_EC
#define EVP_PKEY_assign_EC_KEY(pkey,eckey) EVP_PKEY_assign((pkey),EVP_PKEY_EC,\
                                        (char *)(eckey))
#endif

/* Add some extra combinations */
#define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
#define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
#define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
#define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))

int EVP_MD_type(const EVP_MD *md);
#define EVP_MD_nid(e)			EVP_MD_type(e)
#define EVP_MD_name(e)			OBJ_nid2sn(EVP_MD_nid(e))
int EVP_MD_pkey_type(const EVP_MD *md);	
int EVP_MD_size(const EVP_MD *md);
int EVP_MD_block_size(const EVP_MD *md);
unsigned long EVP_MD_flags(const EVP_MD *md);

const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
#define EVP_MD_CTX_size(e)		EVP_MD_size(EVP_MD_CTX_md(e))
#define EVP_MD_CTX_block_size(e)	EVP_MD_block_size(EVP_MD_CTX_md(e))
#define EVP_MD_CTX_type(e)		EVP_MD_type(EVP_MD_CTX_md(e))

int EVP_CIPHER_nid(const EVP_CIPHER *cipher);
#define EVP_CIPHER_name(e)		OBJ_nid2sn(EVP_CIPHER_nid(e))
int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);
int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);
int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);
unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);
#define EVP_CIPHER_mode(e)		(EVP_CIPHER_flags(e) & EVP_CIPH_MODE)

const EVP_CIPHER * EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);
int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);
int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);
int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);
int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in);
void * EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
#define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx);
#define EVP_CIPHER_CTX_mode(e)		(EVP_CIPHER_CTX_flags(e) & EVP_CIPH_MODE)

#define EVP_ENCODE_LENGTH(l)	(((l+2)/3*4)+(l/48+1)*2+80)
#define EVP_DECODE_LENGTH(l)	((l+3)/4*3+80)

#define EVP_SignInit_ex(a,b,c)		EVP_DigestInit_ex(a,b,c)
#define EVP_SignInit(a,b)		EVP_DigestInit(a,b)
#define EVP_SignUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
#define	EVP_VerifyInit_ex(a,b,c)	EVP_DigestInit_ex(a,b,c)
#define	EVP_VerifyInit(a,b)		EVP_DigestInit(a,b)
#define	EVP_VerifyUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
#define EVP_OpenUpdate(a,b,c,d,e)	EVP_DecryptUpdate(a,b,c,d,e)
#define EVP_SealUpdate(a,b,c,d,e)	EVP_EncryptUpdate(a,b,c,d,e)	
#define EVP_DigestSignUpdate(a,b,c)	EVP_DigestUpdate(a,b,c)
#define EVP_DigestVerifyUpdate(a,b,c)	EVP_DigestUpdate(a,b,c)

#ifdef CONST_STRICT
void BIO_set_md(BIO *,const EVP_MD *md);
#else
# define BIO_set_md(b,md)		BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
#endif
#define BIO_get_md(b,mdp)		BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
#define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
#define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(char *)mdcp)
#define BIO_get_cipher_status(b)	BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
#define BIO_get_cipher_ctx(b,c_pp)	BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)

int EVP_Cipher(EVP_CIPHER_CTX *c,
		unsigned char *out,
		const unsigned char *in,
		unsigned int inl);

#define EVP_add_cipher_alias(n,alias) \
	OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
#define EVP_add_digest_alias(n,alias) \
	OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
#define EVP_delete_cipher_alias(alias) \
	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
#define EVP_delete_digest_alias(alias) \
	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);

void	EVP_MD_CTX_init(EVP_MD_CTX *ctx);
int	EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);
EVP_MD_CTX *EVP_MD_CTX_create(void);
void	EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
int     EVP_MD_CTX_copy_ex(EVP_MD_CTX *out,const EVP_MD_CTX *in);  
void	EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);
void	EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags);
int 	EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx,int flags);
int	EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
int	EVP_DigestUpdate(EVP_MD_CTX *ctx,const void *d,
			 size_t cnt);
int	EVP_DigestFinal_ex(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
int	EVP_Digest(const void *data, size_t count,
		unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl);

int     EVP_MD_CTX_copy(EVP_MD_CTX *out,const EVP_MD_CTX *in);  
int	EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
int	EVP_DigestFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);

int	EVP_read_pw_string(char *buf,int length,const char *prompt,int verify);
int	EVP_read_pw_string_min(char *buf,int minlen,int maxlen,const char *prompt,int verify);
void	EVP_set_pw_prompt(const char *prompt);
char *	EVP_get_pw_prompt(void);

int	EVP_BytesToKey(const EVP_CIPHER *type,const EVP_MD *md,
		const unsigned char *salt, const unsigned char *data,
		int datal, int count, unsigned char *key,unsigned char *iv);

void	EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags);
void	EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags);
int 	EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx,int flags);

int	EVP_EncryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher,
		const unsigned char *key, const unsigned char *iv);
int	EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
		const unsigned char *key, const unsigned char *iv);
int	EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
		int *outl, const unsigned char *in, int inl);
int	EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
int	EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);

int	EVP_DecryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher,
		const unsigned char *key, const unsigned char *iv);
int	EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
		const unsigned char *key, const unsigned char *iv);
int	EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
		int *outl, const unsigned char *in, int inl);
int	EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
int	EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);

int	EVP_CipherInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher,
		       const unsigned char *key,const unsigned char *iv,
		       int enc);
int	EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
		       const unsigned char *key,const unsigned char *iv,
		       int enc);
int	EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
		int *outl, const unsigned char *in, int inl);
int	EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
int	EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);

int	EVP_SignFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s,
		EVP_PKEY *pkey);

int	EVP_VerifyFinal(EVP_MD_CTX *ctx,const unsigned char *sigbuf,
		unsigned int siglen,EVP_PKEY *pkey);

int	EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
			const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
int	EVP_DigestSignFinal(EVP_MD_CTX *ctx,
			unsigned char *sigret, size_t *siglen);

int	EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
			const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
int	EVP_DigestVerifyFinal(EVP_MD_CTX *ctx,
			unsigned char *sig, size_t siglen);

int	EVP_OpenInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
		const unsigned char *ek, int ekl, const unsigned char *iv,
		EVP_PKEY *priv);
int	EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);

int	EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
		 unsigned char **ek, int *ekl, unsigned char *iv,
		EVP_PKEY **pubk, int npubk);
int	EVP_SealFinal(EVP_CIPHER_CTX *ctx,unsigned char *out,int *outl);

void	EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
void	EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
		const unsigned char *in,int inl);
void	EVP_EncodeFinal(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl);
int	EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);

void	EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
int	EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
		const unsigned char *in, int inl);
int	EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
		char *out, int *outl);
int	EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);

void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void);
void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a);
int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *c, int pad);
int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);

#ifndef OPENSSL_NO_BIO
BIO_METHOD *BIO_f_md(void);
BIO_METHOD *BIO_f_base64(void);
BIO_METHOD *BIO_f_cipher(void);
BIO_METHOD *BIO_f_reliable(void);
void BIO_set_cipher(BIO *b,const EVP_CIPHER *c,const unsigned char *k,
		const unsigned char *i, int enc);
#endif

const EVP_MD *EVP_md_null(void);
#ifndef OPENSSL_NO_MD2
const EVP_MD *EVP_md2(void);
#endif
#ifndef OPENSSL_NO_MD4
const EVP_MD *EVP_md4(void);
#endif
#ifndef OPENSSL_NO_MD5
const EVP_MD *EVP_md5(void);
#endif
#ifndef OPENSSL_NO_SHA
const EVP_MD *EVP_sha(void);
const EVP_MD *EVP_sha1(void);
const EVP_MD *EVP_dss(void);
const EVP_MD *EVP_dss1(void);
const EVP_MD *EVP_ecdsa(void);
#endif
#ifndef OPENSSL_NO_SHA256
const EVP_MD *EVP_sha224(void);
const EVP_MD *EVP_sha256(void);
#endif
#ifndef OPENSSL_NO_SHA512
const EVP_MD *EVP_sha384(void);
const EVP_MD *EVP_sha512(void);
#endif
#ifndef OPENSSL_NO_MDC2
const EVP_MD *EVP_mdc2(void);
#endif
#ifndef OPENSSL_NO_RIPEMD
const EVP_MD *EVP_ripemd160(void);
#endif
#ifndef OPENSSL_NO_WHIRLPOOL
const EVP_MD *EVP_whirlpool(void);
#endif
const EVP_CIPHER *EVP_enc_null(void);		/* does nothing :-) */
#ifndef OPENSSL_NO_DES
const EVP_CIPHER *EVP_des_ecb(void);
const EVP_CIPHER *EVP_des_ede(void);
const EVP_CIPHER *EVP_des_ede3(void);
const EVP_CIPHER *EVP_des_ede_ecb(void);
const EVP_CIPHER *EVP_des_ede3_ecb(void);
const EVP_CIPHER *EVP_des_cfb64(void);
# define EVP_des_cfb EVP_des_cfb64
const EVP_CIPHER *EVP_des_cfb1(void);
const EVP_CIPHER *EVP_des_cfb8(void);
const EVP_CIPHER *EVP_des_ede_cfb64(void);
# define EVP_des_ede_cfb EVP_des_ede_cfb64
#if 0
const EVP_CIPHER *EVP_des_ede_cfb1(void);
const EVP_CIPHER *EVP_des_ede_cfb8(void);
#endif
const EVP_CIPHER *EVP_des_ede3_cfb64(void);
# define EVP_des_ede3_cfb EVP_des_ede3_cfb64
const EVP_CIPHER *EVP_des_ede3_cfb1(void);
const EVP_CIPHER *EVP_des_ede3_cfb8(void);
const EVP_CIPHER *EVP_des_ofb(void);
const EVP_CIPHER *EVP_des_ede_ofb(void);
const EVP_CIPHER *EVP_des_ede3_ofb(void);
const EVP_CIPHER *EVP_des_cbc(void);
const EVP_CIPHER *EVP_des_ede_cbc(void);
const EVP_CIPHER *EVP_des_ede3_cbc(void);
const EVP_CIPHER *EVP_desx_cbc(void);
/* This should now be supported through the dev_crypto ENGINE. But also, why are
 * rc4 and md5 declarations made here inside a "NO_DES" precompiler branch? */
#if 0
# ifdef OPENSSL_OPENBSD_DEV_CRYPTO
const EVP_CIPHER *EVP_dev_crypto_des_ede3_cbc(void);
const EVP_CIPHER *EVP_dev_crypto_rc4(void);
const EVP_MD *EVP_dev_crypto_md5(void);
# endif
#endif
#endif
#ifndef OPENSSL_NO_RC4
const EVP_CIPHER *EVP_rc4(void);
const EVP_CIPHER *EVP_rc4_40(void);
#endif
#ifndef OPENSSL_NO_IDEA
const EVP_CIPHER *EVP_idea_ecb(void);
const EVP_CIPHER *EVP_idea_cfb64(void);
# define EVP_idea_cfb EVP_idea_cfb64
const EVP_CIPHER *EVP_idea_ofb(void);
const EVP_CIPHER *EVP_idea_cbc(void);
#endif
#ifndef OPENSSL_NO_RC2
const EVP_CIPHER *EVP_rc2_ecb(void);
const EVP_CIPHER *EVP_rc2_cbc(void);
const EVP_CIPHER *EVP_rc2_40_cbc(void);
const EVP_CIPHER *EVP_rc2_64_cbc(void);
const EVP_CIPHER *EVP_rc2_cfb64(void);
# define EVP_rc2_cfb EVP_rc2_cfb64
const EVP_CIPHER *EVP_rc2_ofb(void);
#endif
#ifndef OPENSSL_NO_BF
const EVP_CIPHER *EVP_bf_ecb(void);
const EVP_CIPHER *EVP_bf_cbc(void);
const EVP_CIPHER *EVP_bf_cfb64(void);
# define EVP_bf_cfb EVP_bf_cfb64
const EVP_CIPHER *EVP_bf_ofb(void);
#endif
#ifndef OPENSSL_NO_CAST
const EVP_CIPHER *EVP_cast5_ecb(void);
const EVP_CIPHER *EVP_cast5_cbc(void);
const EVP_CIPHER *EVP_cast5_cfb64(void);
# define EVP_cast5_cfb EVP_cast5_cfb64
const EVP_CIPHER *EVP_cast5_ofb(void);
#endif
#ifndef OPENSSL_NO_RC5
const EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
const EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
const EVP_CIPHER *EVP_rc5_32_12_16_cfb64(void);
# define EVP_rc5_32_12_16_cfb EVP_rc5_32_12_16_cfb64
const EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
#endif
#ifndef OPENSSL_NO_AES
const EVP_CIPHER *EVP_aes_128_ecb(void);
const EVP_CIPHER *EVP_aes_128_cbc(void);
const EVP_CIPHER *EVP_aes_128_cfb1(void);
const EVP_CIPHER *EVP_aes_128_cfb8(void);
const EVP_CIPHER *EVP_aes_128_cfb128(void);
# define EVP_aes_128_cfb EVP_aes_128_cfb128
const EVP_CIPHER *EVP_aes_128_ofb(void);
#if 0
const EVP_CIPHER *EVP_aes_128_ctr(void);
#endif
const EVP_CIPHER *EVP_aes_192_ecb(void);
const EVP_CIPHER *EVP_aes_192_cbc(void);
const EVP_CIPHER *EVP_aes_192_cfb1(void);
const EVP_CIPHER *EVP_aes_192_cfb8(void);
const EVP_CIPHER *EVP_aes_192_cfb128(void);
# define EVP_aes_192_cfb EVP_aes_192_cfb128
const EVP_CIPHER *EVP_aes_192_ofb(void);
#if 0
const EVP_CIPHER *EVP_aes_192_ctr(void);
#endif
const EVP_CIPHER *EVP_aes_256_ecb(void);
const EVP_CIPHER *EVP_aes_256_cbc(void);
const EVP_CIPHER *EVP_aes_256_cfb1(void);
const EVP_CIPHER *EVP_aes_256_cfb8(void);
const EVP_CIPHER *EVP_aes_256_cfb128(void);
# define EVP_aes_256_cfb EVP_aes_256_cfb128
const EVP_CIPHER *EVP_aes_256_ofb(void);
#if 0
const EVP_CIPHER *EVP_aes_256_ctr(void);
#endif
#endif
#ifndef OPENSSL_NO_CAMELLIA
const EVP_CIPHER *EVP_camellia_128_ecb(void);
const EVP_CIPHER *EVP_camellia_128_cbc(void);
const EVP_CIPHER *EVP_camellia_128_cfb1(void);
const EVP_CIPHER *EVP_camellia_128_cfb8(void);
const EVP_CIPHER *EVP_camellia_128_cfb128(void);
# define EVP_camellia_128_cfb EVP_camellia_128_cfb128
const EVP_CIPHER *EVP_camellia_128_ofb(void);
const EVP_CIPHER *EVP_camellia_192_ecb(void);
const EVP_CIPHER *EVP_camellia_192_cbc(void);
const EVP_CIPHER *EVP_camellia_192_cfb1(void);
const EVP_CIPHER *EVP_camellia_192_cfb8(void);
const EVP_CIPHER *EVP_camellia_192_cfb128(void);
# define EVP_camellia_192_cfb EVP_camellia_192_cfb128
const EVP_CIPHER *EVP_camellia_192_ofb(void);
const EVP_CIPHER *EVP_camellia_256_ecb(void);
const EVP_CIPHER *EVP_camellia_256_cbc(void);
const EVP_CIPHER *EVP_camellia_256_cfb1(void);
const EVP_CIPHER *EVP_camellia_256_cfb8(void);
const EVP_CIPHER *EVP_camellia_256_cfb128(void);
# define EVP_camellia_256_cfb EVP_camellia_256_cfb128
const EVP_CIPHER *EVP_camellia_256_ofb(void);
#endif

#ifndef OPENSSL_NO_SEED
const EVP_CIPHER *EVP_seed_ecb(void);
const EVP_CIPHER *EVP_seed_cbc(void);
const EVP_CIPHER *EVP_seed_cfb128(void);
# define EVP_seed_cfb EVP_seed_cfb128
const EVP_CIPHER *EVP_seed_ofb(void);
#endif

void OPENSSL_add_all_algorithms_noconf(void);
void OPENSSL_add_all_algorithms_conf(void);

#ifdef OPENSSL_LOAD_CONF
#define OpenSSL_add_all_algorithms() \
		OPENSSL_add_all_algorithms_conf()
#else
#define OpenSSL_add_all_algorithms() \
		OPENSSL_add_all_algorithms_noconf()
#endif

void OpenSSL_add_all_ciphers(void);
void OpenSSL_add_all_digests(void);
#define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
#define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
#define SSLeay_add_all_digests() OpenSSL_add_all_digests()

int EVP_add_cipher(const EVP_CIPHER *cipher);
int EVP_add_digest(const EVP_MD *digest);

const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
const EVP_MD *EVP_get_digestbyname(const char *name);
void EVP_cleanup(void);

void EVP_CIPHER_do_all(void (*fn)(const EVP_CIPHER *ciph,
		const char *from, const char *to, void *x), void *arg);
void EVP_CIPHER_do_all_sorted(void (*fn)(const EVP_CIPHER *ciph,
		const char *from, const char *to, void *x), void *arg);

void EVP_MD_do_all(void (*fn)(const EVP_MD *ciph,
		const char *from, const char *to, void *x), void *arg);
void EVP_MD_do_all_sorted(void (*fn)(const EVP_MD *ciph,
		const char *from, const char *to, void *x), void *arg);

int		EVP_PKEY_decrypt_old(unsigned char *dec_key,
			const unsigned char *enc_key,int enc_key_len,
			EVP_PKEY *private_key);
int		EVP_PKEY_encrypt_old(unsigned char *enc_key,
			const unsigned char *key,int key_len,
			EVP_PKEY *pub_key);
int		EVP_PKEY_type(int type);
int		EVP_PKEY_id(const EVP_PKEY *pkey);
int		EVP_PKEY_base_id(const EVP_PKEY *pkey);
int		EVP_PKEY_bits(EVP_PKEY *pkey);
int		EVP_PKEY_size(EVP_PKEY *pkey);
int 		EVP_PKEY_set_type(EVP_PKEY *pkey,int type);
int		EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len);
int 		EVP_PKEY_assign(EVP_PKEY *pkey,int type,void *key);
void *		EVP_PKEY_get0(EVP_PKEY *pkey);

#ifndef OPENSSL_NO_RSA
struct rsa_st;
int EVP_PKEY_set1_RSA(EVP_PKEY *pkey,struct rsa_st *key);
struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
#endif
#ifndef OPENSSL_NO_DSA
struct dsa_st;
int EVP_PKEY_set1_DSA(EVP_PKEY *pkey,struct dsa_st *key);
struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
#endif
#ifndef OPENSSL_NO_DH
struct dh_st;
int EVP_PKEY_set1_DH(EVP_PKEY *pkey,struct dh_st *key);
struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
#endif
#ifndef OPENSSL_NO_EC
struct ec_key_st;
int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey,struct ec_key_st *key);
struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
#endif

EVP_PKEY *	EVP_PKEY_new(void);
void		EVP_PKEY_free(EVP_PKEY *pkey);

EVP_PKEY *	d2i_PublicKey(int type,EVP_PKEY **a, const unsigned char **pp,
			long length);
int		i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);

EVP_PKEY *	d2i_PrivateKey(int type,EVP_PKEY **a, const unsigned char **pp,
			long length);
EVP_PKEY *	d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
			long length);
int		i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);

int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
int EVP_PKEY_save_parameters(EVP_PKEY *pkey,int mode);
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);

int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);

int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
				int indent, ASN1_PCTX *pctx);
int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
				int indent, ASN1_PCTX *pctx);
int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
				int indent, ASN1_PCTX *pctx);

int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);

int EVP_CIPHER_type(const EVP_CIPHER *ctx);

/* calls methods */
int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);

/* These are used by EVP_CIPHER methods */
int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);

/* PKCS5 password based encryption */
int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
			 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
			 int en_de);
int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
			   const unsigned char *salt, int saltlen, int iter,
			   int keylen, unsigned char *out);
int PKCS5_PBKDF2_HMAC(const char *pass, int passlen,
			   const unsigned char *salt, int saltlen, int iter,
			   const EVP_MD *digest,
		      int keylen, unsigned char *out);
int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
			 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
			 int en_de);

void PKCS5_PBE_add(void);

int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
	     ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);

/* PBE type */

/* Can appear as the outermost AlgorithmIdentifier */
#define EVP_PBE_TYPE_OUTER	0x0
/* Is an PRF type OID */
#define EVP_PBE_TYPE_PRF	0x1

int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid,
	     EVP_PBE_KEYGEN *keygen);
int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
		    EVP_PBE_KEYGEN *keygen);
int EVP_PBE_find(int type, int pbe_nid,
			int *pcnid, int *pmnid, EVP_PBE_KEYGEN **pkeygen);
void EVP_PBE_cleanup(void);

#define ASN1_PKEY_ALIAS		0x1
#define ASN1_PKEY_DYNAMIC	0x2
#define ASN1_PKEY_SIGPARAM_NULL	0x4

#define ASN1_PKEY_CTRL_PKCS7_SIGN	0x1
#define ASN1_PKEY_CTRL_PKCS7_ENCRYPT	0x2
#define ASN1_PKEY_CTRL_DEFAULT_MD_NID	0x3
#define ASN1_PKEY_CTRL_CMS_SIGN		0x5
#define ASN1_PKEY_CTRL_CMS_ENVELOPE	0x7

int EVP_PKEY_asn1_get_count(void);
const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type);
const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
					const char *str, int len);
int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth);
int EVP_PKEY_asn1_add_alias(int to, int from);
int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id, int *ppkey_flags,
				const char **pinfo, const char **ppem_str,
					const EVP_PKEY_ASN1_METHOD *ameth);

const EVP_PKEY_ASN1_METHOD* EVP_PKEY_get0_asn1(EVP_PKEY *pkey);
EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags,
					const char *pem_str, const char *info);
void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst, 
			const EVP_PKEY_ASN1_METHOD *src);
void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth);
void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
		int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub),
		int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
		int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
		int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
							ASN1_PCTX *pctx),
		int (*pkey_size)(const EVP_PKEY *pk),
		int (*pkey_bits)(const EVP_PKEY *pk));
void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
		int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf),
		int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk),
		int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
							ASN1_PCTX *pctx));
void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
		int (*param_decode)(EVP_PKEY *pkey,
				const unsigned char **pder, int derlen),
		int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder),
		int (*param_missing)(const EVP_PKEY *pk),
		int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from),
		int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
		int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
							ASN1_PCTX *pctx));

void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
		void (*pkey_free)(EVP_PKEY *pkey));
void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
		int (*pkey_ctrl)(EVP_PKEY *pkey, int op,
							long arg1, void *arg2));


#define EVP_PKEY_OP_UNDEFINED		0
#define EVP_PKEY_OP_PARAMGEN		(1<<1)
#define EVP_PKEY_OP_KEYGEN		(1<<2)
#define EVP_PKEY_OP_SIGN		(1<<3)
#define EVP_PKEY_OP_VERIFY		(1<<4)
#define EVP_PKEY_OP_VERIFYRECOVER	(1<<5)
#define EVP_PKEY_OP_SIGNCTX		(1<<6)
#define EVP_PKEY_OP_VERIFYCTX		(1<<7)
#define EVP_PKEY_OP_ENCRYPT		(1<<8)
#define EVP_PKEY_OP_DECRYPT		(1<<9)
#define EVP_PKEY_OP_DERIVE		(1<<10)

#define EVP_PKEY_OP_TYPE_SIG	\
	(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER \
		| EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX)

#define EVP_PKEY_OP_TYPE_CRYPT \
	(EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)

#define EVP_PKEY_OP_TYPE_NOGEN \
	(EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)

#define EVP_PKEY_OP_TYPE_GEN \
		(EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)

#define	 EVP_PKEY_CTX_set_signature_md(ctx, md)	\
		EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,  \
					EVP_PKEY_CTRL_MD, 0, (void *)md)

#define EVP_PKEY_CTRL_MD		1
#define EVP_PKEY_CTRL_PEER_KEY		2

#define EVP_PKEY_CTRL_PKCS7_ENCRYPT	3
#define EVP_PKEY_CTRL_PKCS7_DECRYPT	4

#define EVP_PKEY_CTRL_PKCS7_SIGN	5

#define EVP_PKEY_CTRL_SET_MAC_KEY	6

#define EVP_PKEY_CTRL_DIGESTINIT	7

/* Used by GOST key encryption in TLS */
#define EVP_PKEY_CTRL_SET_IV 		8

#define EVP_PKEY_CTRL_CMS_ENCRYPT	9
#define EVP_PKEY_CTRL_CMS_DECRYPT	10
#define EVP_PKEY_CTRL_CMS_SIGN		11

#define EVP_PKEY_ALG_CTRL		0x1000


#define EVP_PKEY_FLAG_AUTOARGLEN	2

const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
EVP_PKEY_METHOD* EVP_PKEY_meth_new(int id, int flags);
void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);

EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e);
EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e);
EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *ctx);
void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);

int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
				int cmd, int p1, void *p2);
int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
						const char *value);

int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx);
void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen);

EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e,
				unsigned char *key, int keylen);

void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data);
void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx);
EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx);

EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx);

void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data);
void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx);

int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
			unsigned char *sig, size_t *siglen,
			const unsigned char *tbs, size_t tbslen);
int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
			const unsigned char *sig, size_t siglen,
			const unsigned char *tbs, size_t tbslen);
int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
			unsigned char *rout, size_t *routlen,
			const unsigned char *sig, size_t siglen);
int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
			unsigned char *out, size_t *outlen,
			const unsigned char *in, size_t inlen);
int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
			unsigned char *out, size_t *outlen,
			const unsigned char *in, size_t inlen);

int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer);
int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);

typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);

int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx);
int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);

void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb);
EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx);

int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx);

void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
	int (*init)(EVP_PKEY_CTX *ctx));

void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
	int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src));

void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
	void (*cleanup)(EVP_PKEY_CTX *ctx));

void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
	int (*paramgen_init)(EVP_PKEY_CTX *ctx),
	int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));

void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
	int (*keygen_init)(EVP_PKEY_CTX *ctx),
	int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));

void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
	int (*sign_init)(EVP_PKEY_CTX *ctx),
	int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
					const unsigned char *tbs, size_t tbslen));

void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
	int (*verify_init)(EVP_PKEY_CTX *ctx),
	int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
					const unsigned char *tbs, size_t tbslen));

void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
	int (*verify_recover_init)(EVP_PKEY_CTX *ctx),
	int (*verify_recover)(EVP_PKEY_CTX *ctx,
					unsigned char *sig, size_t *siglen,
					const unsigned char *tbs, size_t tbslen));

void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
	int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
	int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
					EVP_MD_CTX *mctx));

void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
	int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
	int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen,
					EVP_MD_CTX *mctx));

void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
	int (*encrypt_init)(EVP_PKEY_CTX *ctx),
	int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
					const unsigned char *in, size_t inlen));

void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
	int (*decrypt_init)(EVP_PKEY_CTX *ctx),
	int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
					const unsigned char *in, size_t inlen));

void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
	int (*derive_init)(EVP_PKEY_CTX *ctx),
	int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen));

void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
	int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2),
	int (*ctrl_str)(EVP_PKEY_CTX *ctx,
					const char *type, const char *value));

/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_EVP_strings(void);

/* Error codes for the EVP functions. */

/* Function codes. */
#define EVP_F_AES_INIT_KEY				 133
#define EVP_F_CAMELLIA_INIT_KEY				 159
#define EVP_F_D2I_PKEY					 100
#define EVP_F_DO_SIGVER_INIT				 161
#define EVP_F_DSAPKEY2PKCS8				 134
#define EVP_F_DSA_PKEY2PKCS8				 135
#define EVP_F_ECDSA_PKEY2PKCS8				 129
#define EVP_F_ECKEY_PKEY2PKCS8				 132
#define EVP_F_EVP_CIPHERINIT_EX				 123
#define EVP_F_EVP_CIPHER_CTX_COPY			 163
#define EVP_F_EVP_CIPHER_CTX_CTRL			 124
#define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH		 122
#define EVP_F_EVP_DECRYPTFINAL_EX			 101
#define EVP_F_EVP_DIGESTINIT_EX				 128
#define EVP_F_EVP_ENCRYPTFINAL_EX			 127
#define EVP_F_EVP_MD_CTX_COPY_EX			 110
#define EVP_F_EVP_MD_SIZE				 162
#define EVP_F_EVP_OPENINIT				 102
#define EVP_F_EVP_PBE_ALG_ADD				 115
#define EVP_F_EVP_PBE_ALG_ADD_TYPE			 160
#define EVP_F_EVP_PBE_CIPHERINIT			 116
#define EVP_F_EVP_PKCS82PKEY				 111
#define EVP_F_EVP_PKCS82PKEY_BROKEN			 136
#define EVP_F_EVP_PKEY2PKCS8_BROKEN			 113
#define EVP_F_EVP_PKEY_COPY_PARAMETERS			 103
#define EVP_F_EVP_PKEY_CTX_CTRL				 137
#define EVP_F_EVP_PKEY_CTX_CTRL_STR			 150
#define EVP_F_EVP_PKEY_CTX_DUP				 156
#define EVP_F_EVP_PKEY_DECRYPT				 104
#define EVP_F_EVP_PKEY_DECRYPT_INIT			 138
#define EVP_F_EVP_PKEY_DECRYPT_OLD			 151
#define EVP_F_EVP_PKEY_DERIVE				 153
#define EVP_F_EVP_PKEY_DERIVE_INIT			 154
#define EVP_F_EVP_PKEY_DERIVE_SET_PEER			 155
#define EVP_F_EVP_PKEY_ENCRYPT				 105
#define EVP_F_EVP_PKEY_ENCRYPT_INIT			 139
#define EVP_F_EVP_PKEY_ENCRYPT_OLD			 152
#define EVP_F_EVP_PKEY_GET1_DH				 119
#define EVP_F_EVP_PKEY_GET1_DSA				 120
#define EVP_F_EVP_PKEY_GET1_ECDSA			 130
#define EVP_F_EVP_PKEY_GET1_EC_KEY			 131
#define EVP_F_EVP_PKEY_GET1_RSA				 121
#define EVP_F_EVP_PKEY_KEYGEN				 146
#define EVP_F_EVP_PKEY_KEYGEN_INIT			 147
#define EVP_F_EVP_PKEY_NEW				 106
#define EVP_F_EVP_PKEY_PARAMGEN				 148
#define EVP_F_EVP_PKEY_PARAMGEN_INIT			 149
#define EVP_F_EVP_PKEY_SIGN				 140
#define EVP_F_EVP_PKEY_SIGN_INIT			 141
#define EVP_F_EVP_PKEY_VERIFY				 142
#define EVP_F_EVP_PKEY_VERIFY_INIT			 143
#define EVP_F_EVP_PKEY_VERIFY_RECOVER			 144
#define EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT		 145
#define EVP_F_EVP_RIJNDAEL				 126
#define EVP_F_EVP_SIGNFINAL				 107
#define EVP_F_EVP_VERIFYFINAL				 108
#define EVP_F_INT_CTX_NEW				 157
#define EVP_F_PKCS5_PBE_KEYIVGEN			 117
#define EVP_F_PKCS5_V2_PBE_KEYIVGEN			 118
#define EVP_F_PKCS8_SET_BROKEN				 112
#define EVP_F_PKEY_SET_TYPE				 158
#define EVP_F_RC2_MAGIC_TO_METH				 109
#define EVP_F_RC5_CTRL					 125

/* Reason codes. */
#define EVP_R_AES_KEY_SETUP_FAILED			 143
#define EVP_R_ASN1_LIB					 140
#define EVP_R_BAD_BLOCK_LENGTH				 136
#define EVP_R_BAD_DECRYPT				 100
#define EVP_R_BAD_KEY_LENGTH				 137
#define EVP_R_BN_DECODE_ERROR				 112
#define EVP_R_BN_PUBKEY_ERROR				 113
#define EVP_R_BUFFER_TOO_SMALL				 155
#define EVP_R_CAMELLIA_KEY_SETUP_FAILED			 157
#define EVP_R_CIPHER_PARAMETER_ERROR			 122
#define EVP_R_COMMAND_NOT_SUPPORTED			 147
#define EVP_R_CTRL_NOT_IMPLEMENTED			 132
#define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED		 133
#define EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH		 138
#define EVP_R_DECODE_ERROR				 114
#define EVP_R_DIFFERENT_KEY_TYPES			 101
#define EVP_R_DIFFERENT_PARAMETERS			 153
#define EVP_R_ENCODE_ERROR				 115
#define EVP_R_EVP_PBE_CIPHERINIT_ERROR			 119
#define EVP_R_EXPECTING_AN_RSA_KEY			 127
#define EVP_R_EXPECTING_A_DH_KEY			 128
#define EVP_R_EXPECTING_A_DSA_KEY			 129
#define EVP_R_EXPECTING_A_ECDSA_KEY			 141
#define EVP_R_EXPECTING_A_EC_KEY			 142
#define EVP_R_INITIALIZATION_ERROR			 134
#define EVP_R_INPUT_NOT_INITIALIZED			 111
#define EVP_R_INVALID_DIGEST				 152
#define EVP_R_INVALID_KEY_LENGTH			 130
#define EVP_R_INVALID_OPERATION				 148
#define EVP_R_IV_TOO_LARGE				 102
#define EVP_R_KEYGEN_FAILURE				 120
#define EVP_R_MESSAGE_DIGEST_IS_NULL			 159
#define EVP_R_METHOD_NOT_SUPPORTED			 144
#define EVP_R_MISSING_PARAMETERS			 103
#define EVP_R_NO_CIPHER_SET				 131
#define EVP_R_NO_DEFAULT_DIGEST				 158
#define EVP_R_NO_DIGEST_SET				 139
#define EVP_R_NO_DSA_PARAMETERS				 116
#define EVP_R_NO_KEY_SET				 154
#define EVP_R_NO_OPERATION_SET				 149
#define EVP_R_NO_SIGN_FUNCTION_CONFIGURED		 104
#define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED		 105
#define EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE	 150
#define EVP_R_OPERATON_NOT_INITIALIZED			 151
#define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE			 117
#define EVP_R_PRIVATE_KEY_DECODE_ERROR			 145
#define EVP_R_PRIVATE_KEY_ENCODE_ERROR			 146
#define EVP_R_PUBLIC_KEY_NOT_RSA			 106
#define EVP_R_UNKNOWN_CIPHER				 160
#define EVP_R_UNKNOWN_DIGEST				 161
#define EVP_R_UNKNOWN_PBE_ALGORITHM			 121
#define EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS		 135
#define EVP_R_UNSUPPORTED_ALGORITHM			 156
#define EVP_R_UNSUPPORTED_CIPHER			 107
#define EVP_R_UNSUPPORTED_KEYLENGTH			 123
#define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION	 124
#define EVP_R_UNSUPPORTED_KEY_SIZE			 108
#define EVP_R_UNSUPPORTED_PRF				 125
#define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM		 118
#define EVP_R_UNSUPPORTED_SALT_TYPE			 126
#define EVP_R_WRONG_FINAL_BLOCK_LENGTH			 109
#define EVP_R_WRONG_PUBLIC_KEY_TYPE			 110

#ifdef  __cplusplus
}
#endif
#endif

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Written By
Chief Technology Officer Apriorit Inc.
United States United States
ApriorIT is a software research and development company specializing in cybersecurity and data management technology engineering. We work for a broad range of clients from Fortune 500 technology leaders to small innovative startups building unique solutions.

As Apriorit offers integrated research&development services for the software projects in such areas as endpoint security, network security, data security, embedded Systems, and virtualization, we have strong kernel and driver development skills, huge system programming expertise, and are reals fans of research projects.

Our specialty is reverse engineering, we apply it for security testing and security-related projects.

A separate department of Apriorit works on large-scale business SaaS solutions, handling tasks from business analysis, data architecture design, and web development to performance optimization and DevOps.

Official site: https://www.apriorit.com
Clutch profile: https://clutch.co/profile/apriorit
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Written By
Software Developer (Senior) ApriorIT
Ukraine Ukraine
Senior Software Developer of Apriorit Inc.
My favorite tasks are multithreading, networking and WDK.

... But in free time : beer, meat, travelling and photo...)

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