/* $OpenBSD: pem.h,v 1.17 2016/09/04 16:22:54 jsing Exp $ */
/* Copyright (C) 1995-1997 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_PEM_H
#define HEADER_PEM_H

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_BIO
#include <openssl/bio.h>
#endif
#ifndef OPENSSL_NO_STACK
#include <openssl/stack.h>
#endif
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem2.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define PEM_BUFSIZE		1024

#define PEM_OBJ_UNDEF		0
#define PEM_OBJ_X509		1
#define PEM_OBJ_X509_REQ	2
#define PEM_OBJ_CRL		3
#define PEM_OBJ_SSL_SESSION	4
#define PEM_OBJ_PRIV_KEY	10
#define PEM_OBJ_PRIV_RSA	11
#define PEM_OBJ_PRIV_DSA	12
#define PEM_OBJ_PRIV_DH		13
#define PEM_OBJ_PUB_RSA		14
#define PEM_OBJ_PUB_DSA		15
#define PEM_OBJ_PUB_DH		16
#define PEM_OBJ_DHPARAMS	17
#define PEM_OBJ_DSAPARAMS	18
#define PEM_OBJ_PRIV_RSA_PUBLIC	19
#define PEM_OBJ_PRIV_ECDSA	20
#define PEM_OBJ_PUB_ECDSA	21
#define PEM_OBJ_ECPARAMETERS	22

#define PEM_ERROR		30
#define PEM_DEK_DES_CBC         40
#define PEM_DEK_IDEA_CBC        45
#define PEM_DEK_DES_EDE         50
#define PEM_DEK_DES_ECB         60
#define PEM_DEK_RSA             70
#define PEM_DEK_RSA_MD2         80
#define PEM_DEK_RSA_MD5         90

#define PEM_MD_MD2		NID_md2
#define PEM_MD_MD5		NID_md5
#define PEM_MD_SHA		NID_sha
#define PEM_MD_MD2_RSA		NID_md2WithRSAEncryption
#define PEM_MD_MD5_RSA		NID_md5WithRSAEncryption
#define PEM_MD_SHA_RSA		NID_sha1WithRSAEncryption

#define PEM_STRING_X509_OLD	"X509 CERTIFICATE"
#define PEM_STRING_X509		"CERTIFICATE"
#define PEM_STRING_X509_PAIR	"CERTIFICATE PAIR"
#define PEM_STRING_X509_TRUSTED	"TRUSTED CERTIFICATE"
#define PEM_STRING_X509_REQ_OLD	"NEW CERTIFICATE REQUEST"
#define PEM_STRING_X509_REQ	"CERTIFICATE REQUEST"
#define PEM_STRING_X509_CRL	"X509 CRL"
#define PEM_STRING_EVP_PKEY	"ANY PRIVATE KEY"
#define PEM_STRING_PUBLIC	"PUBLIC KEY"
#define PEM_STRING_RSA		"RSA PRIVATE KEY"
#define PEM_STRING_RSA_PUBLIC	"RSA PUBLIC KEY"
#define PEM_STRING_DSA		"DSA PRIVATE KEY"
#define PEM_STRING_DSA_PUBLIC	"DSA PUBLIC KEY"
#define PEM_STRING_PKCS7	"PKCS7"
#define PEM_STRING_PKCS7_SIGNED	"PKCS #7 SIGNED DATA"
#define PEM_STRING_PKCS8	"ENCRYPTED PRIVATE KEY"
#define PEM_STRING_PKCS8INF	"PRIVATE KEY"
#define PEM_STRING_DHPARAMS	"DH PARAMETERS"
#define PEM_STRING_SSL_SESSION	"SSL SESSION PARAMETERS"
#define PEM_STRING_DSAPARAMS	"DSA PARAMETERS"
#define PEM_STRING_ECDSA_PUBLIC "ECDSA PUBLIC KEY"
#define PEM_STRING_ECPARAMETERS "EC PARAMETERS"
#define PEM_STRING_ECPRIVATEKEY	"EC PRIVATE KEY"
#define PEM_STRING_PARAMETERS	"PARAMETERS"
#define PEM_STRING_CMS		"CMS"

  /* Note that this structure is initialised by PEM_SealInit and cleaned up
     by PEM_SealFinal (at least for now) */
typedef struct PEM_Encode_Seal_st {
	EVP_ENCODE_CTX encode;
	EVP_MD_CTX md;
	EVP_CIPHER_CTX cipher;
} PEM_ENCODE_SEAL_CTX;

/* enc_type is one off */
#define PEM_TYPE_ENCRYPTED      10
#define PEM_TYPE_MIC_ONLY       20
#define PEM_TYPE_MIC_CLEAR      30
#define PEM_TYPE_CLEAR		40

typedef struct pem_recip_st {
	char *name;
	X509_NAME *dn;

	int cipher;
	int key_enc;
	/*	char iv[8]; unused and wrong size */
} PEM_USER;

typedef struct pem_ctx_st {
	int type;		/* what type of object */

	struct	{
		int version;
		int mode;
	} proc_type;

	char *domain;

	struct	{
		int cipher;
	/* unused, and wrong size
	   unsigned char iv[8]; */
	} DEK_info;

	PEM_USER *originator;

	int num_recipient;
	PEM_USER **recipient;

	/* XXX(ben): don#t think this is used!
		STACK *x509_chain;	/ * certificate chain */
	EVP_MD *md;		/* signature type */

	int md_enc;		/* is the md encrypted or not? */
	int md_len;		/* length of md_data */
	char *md_data;		/* message digest, could be pkey encrypted */

	EVP_CIPHER *dec;	/* date encryption cipher */
	int key_len;		/* key length */
	unsigned char *key;	/* key */
	/* unused, and wrong size
	   unsigned char iv[8]; */

	int  data_enc;		/* is the data encrypted */
	int data_len;
	unsigned char *data;
} PEM_CTX;

#ifndef LIBRESSL_INTERNAL
/* These macros make the PEM_read/PEM_write functions easier to maintain and
 * write. Now they are all implemented with either:
 * IMPLEMENT_PEM_rw(...) or IMPLEMENT_PEM_rw_cb(...)
 */

#define IMPLEMENT_PEM_read_fp(name, type, str, asn1) \
type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u)\
{ \
return PEM_ASN1_read((d2i_of_void *)d2i_##asn1, str,fp,(void **)x,cb,u); \
}

#define IMPLEMENT_PEM_write_fp(name, type, str, asn1) \
int PEM_write_##name(FILE *fp, type *x) \
{ \
return PEM_ASN1_write((i2d_of_void *)i2d_##asn1,str,fp,x,NULL,NULL,0,NULL,NULL); \
}

#define IMPLEMENT_PEM_write_fp_const(name, type, str, asn1) \
int PEM_write_##name(FILE *fp, const type *x) \
{ \
return PEM_ASN1_write((i2d_of_void *)i2d_##asn1,str,fp,(void *)x,NULL,NULL,0,NULL,NULL); \
}

#define IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1) \
int PEM_write_##name(FILE *fp, type *x, const EVP_CIPHER *enc, \
	     unsigned char *kstr, int klen, pem_password_cb *cb, \
		  void *u) \
	{ \
	return PEM_ASN1_write((i2d_of_void *)i2d_##asn1,str,fp,x,enc,kstr,klen,cb,u); \
	}

#define IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1) \
int PEM_write_##name(FILE *fp, type *x, const EVP_CIPHER *enc, \
	     unsigned char *kstr, int klen, pem_password_cb *cb, \
		  void *u) \
	{ \
	return PEM_ASN1_write((i2d_of_void *)i2d_##asn1,str,fp,x,enc,kstr,klen,cb,u); \
	}


#define IMPLEMENT_PEM_read_bio(name, type, str, asn1) \
type *PEM_read_bio_##name(BIO *bp, type **x, pem_password_cb *cb, void *u)\
{ \
return PEM_ASN1_read_bio((d2i_of_void *)d2i_##asn1, str,bp,(void **)x,cb,u); \
}

#define IMPLEMENT_PEM_write_bio(name, type, str, asn1) \
int PEM_write_bio_##name(BIO *bp, type *x) \
{ \
return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1,str,bp,x,NULL,NULL,0,NULL,NULL); \
}

#define IMPLEMENT_PEM_write_bio_const(name, type, str, asn1) \
int PEM_write_bio_##name(BIO *bp, const type *x) \
{ \
return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1,str,bp,(void *)x,NULL,NULL,0,NULL,NULL); \
}

#define IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1) \
int PEM_write_bio_##name(BIO *bp, type *x, const EVP_CIPHER *enc, \
	     unsigned char *kstr, int klen, pem_password_cb *cb, void *u) \
	{ \
	return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1,str,bp,x,enc,kstr,klen,cb,u); \
	}

#define IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1) \
int PEM_write_bio_##name(BIO *bp, type *x, const EVP_CIPHER *enc, \
	     unsigned char *kstr, int klen, pem_password_cb *cb, void *u) \
	{ \
	return PEM_ASN1_write_bio((i2d_of_void *)i2d_##asn1,str,bp,(void *)x,enc,kstr,klen,cb,u); \
	}

#define IMPLEMENT_PEM_write(name, type, str, asn1) \
	IMPLEMENT_PEM_write_bio(name, type, str, asn1) \
	IMPLEMENT_PEM_write_fp(name, type, str, asn1)

#define IMPLEMENT_PEM_write_const(name, type, str, asn1) \
	IMPLEMENT_PEM_write_bio_const(name, type, str, asn1) \
	IMPLEMENT_PEM_write_fp_const(name, type, str, asn1)

#define IMPLEMENT_PEM_write_cb(name, type, str, asn1) \
	IMPLEMENT_PEM_write_cb_bio(name, type, str, asn1) \
	IMPLEMENT_PEM_write_cb_fp(name, type, str, asn1)

#define IMPLEMENT_PEM_write_cb_const(name, type, str, asn1) \
	IMPLEMENT_PEM_write_cb_bio_const(name, type, str, asn1) \
	IMPLEMENT_PEM_write_cb_fp_const(name, type, str, asn1)

#define IMPLEMENT_PEM_read(name, type, str, asn1) \
	IMPLEMENT_PEM_read_bio(name, type, str, asn1) \
	IMPLEMENT_PEM_read_fp(name, type, str, asn1)

#define IMPLEMENT_PEM_rw(name, type, str, asn1) \
	IMPLEMENT_PEM_read(name, type, str, asn1) \
	IMPLEMENT_PEM_write(name, type, str, asn1)

#define IMPLEMENT_PEM_rw_const(name, type, str, asn1) \
	IMPLEMENT_PEM_read(name, type, str, asn1) \
	IMPLEMENT_PEM_write_const(name, type, str, asn1)

#define IMPLEMENT_PEM_rw_cb(name, type, str, asn1) \
	IMPLEMENT_PEM_read(name, type, str, asn1) \
	IMPLEMENT_PEM_write_cb(name, type, str, asn1)

#endif

/* These are the same except they are for the declarations */


#define DECLARE_PEM_read_fp(name, type) \
	type *PEM_read_##name(FILE *fp, type **x, pem_password_cb *cb, void *u);

#define DECLARE_PEM_write_fp(name, type) \
	int PEM_write_##name(FILE *fp, type *x);

#define DECLARE_PEM_write_fp_const(name, type) \
	int PEM_write_##name(FILE *fp, const type *x);

#define DECLARE_PEM_write_cb_fp(name, type) \
	int PEM_write_##name(FILE *fp, type *x, const EVP_CIPHER *enc, \
	     unsigned char *kstr, int klen, pem_password_cb *cb, void *u);


#ifndef OPENSSL_NO_BIO
#define DECLARE_PEM_read_bio(name, type) \
	type *PEM_read_bio_##name(BIO *bp, type **x, pem_password_cb *cb, void *u);

#define DECLARE_PEM_write_bio(name, type) \
	int PEM_write_bio_##name(BIO *bp, type *x);

#define DECLARE_PEM_write_bio_const(name, type) \
	int PEM_write_bio_##name(BIO *bp, const type *x);

#define DECLARE_PEM_write_cb_bio(name, type) \
	int PEM_write_bio_##name(BIO *bp, type *x, const EVP_CIPHER *enc, \
	     unsigned char *kstr, int klen, pem_password_cb *cb, void *u);

#else

#define DECLARE_PEM_read_bio(name, type) /**/
#define DECLARE_PEM_write_bio(name, type) /**/
#define DECLARE_PEM_write_bio_const(name, type) /**/
#define DECLARE_PEM_write_cb_bio(name, type) /**/

#endif

#define DECLARE_PEM_write(name, type) \
	DECLARE_PEM_write_bio(name, type) \
	DECLARE_PEM_write_fp(name, type)

#define DECLARE_PEM_write_const(name, type) \
	DECLARE_PEM_write_bio_const(name, type) \
	DECLARE_PEM_write_fp_const(name, type)

#define DECLARE_PEM_write_cb(name, type) \
	DECLARE_PEM_write_cb_bio(name, type) \
	DECLARE_PEM_write_cb_fp(name, type)

#define DECLARE_PEM_read(name, type) \
	DECLARE_PEM_read_bio(name, type) \
	DECLARE_PEM_read_fp(name, type)

#define DECLARE_PEM_rw(name, type) \
	DECLARE_PEM_read(name, type) \
	DECLARE_PEM_write(name, type)

#define DECLARE_PEM_rw_const(name, type) \
	DECLARE_PEM_read(name, type) \
	DECLARE_PEM_write_const(name, type)

#define DECLARE_PEM_rw_cb(name, type) \
	DECLARE_PEM_read(name, type) \
	DECLARE_PEM_write_cb(name, type)

typedef int pem_password_cb(char *buf, int size, int rwflag, void *userdata);

int	PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher);
int	PEM_do_header (EVP_CIPHER_INFO *cipher, unsigned char *data, long *len,
	    pem_password_cb *callback, void *u);

#ifndef OPENSSL_NO_BIO
int	PEM_read_bio(BIO *bp, char **name, char **header,
	    unsigned char **data, long *len);
int	PEM_write_bio(BIO *bp, const char *name, char *hdr, unsigned char *data,
	    long len);
int	PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm,
	    const char *name, BIO *bp, pem_password_cb *cb, void *u);
void *	PEM_ASN1_read_bio(d2i_of_void *d2i, const char *name, BIO *bp,
	    void **x, pem_password_cb *cb, void *u);
int	PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, void *x,
	    const EVP_CIPHER *enc, unsigned char *kstr, int klen,
	    pem_password_cb *cb, void *u);

STACK_OF(X509_INFO) *	PEM_X509_INFO_read_bio(BIO *bp,
	    STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u);
int	PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
	    unsigned char *kstr, int klen, pem_password_cb *cd, void *u);
#endif

int	PEM_read(FILE *fp, char **name, char **header,
	    unsigned char **data, long *len);
int	PEM_write(FILE *fp, char *name, char *hdr, unsigned char *data,
	    long len);
void *  PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
	    pem_password_cb *cb, void *u);
int	PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp,
	    void *x, const EVP_CIPHER *enc, unsigned char *kstr,
	    int klen, pem_password_cb *callback, void *u);
STACK_OF(X509_INFO) *	PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
	    pem_password_cb *cb, void *u);

int	PEM_SealInit(PEM_ENCODE_SEAL_CTX *ctx, EVP_CIPHER *type,
	    EVP_MD *md_type, unsigned char **ek, int *ekl,
	    unsigned char *iv, EVP_PKEY **pubk, int npubk);
void	PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl,
	    unsigned char *in, int inl);
int	PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl,
	    unsigned char *out, int *outl, EVP_PKEY *priv);

void    PEM_SignInit(EVP_MD_CTX *ctx, EVP_MD *type);
void    PEM_SignUpdate(EVP_MD_CTX *ctx, unsigned char *d, unsigned int cnt);
int	PEM_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
	    unsigned int *siglen, EVP_PKEY *pkey);

int	PEM_def_callback(char *buf, int num, int w, void *key);
void	PEM_proc_type(char *buf, int type);
void	PEM_dek_info(char *buf, const char *type, int len, char *str);


DECLARE_PEM_rw(X509, X509)

DECLARE_PEM_rw(X509_AUX, X509)

DECLARE_PEM_rw(X509_CERT_PAIR, X509_CERT_PAIR)

DECLARE_PEM_rw(X509_REQ, X509_REQ)
DECLARE_PEM_write(X509_REQ_NEW, X509_REQ)

DECLARE_PEM_rw(X509_CRL, X509_CRL)

DECLARE_PEM_rw(PKCS7, PKCS7)

DECLARE_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE)

DECLARE_PEM_rw(PKCS8, X509_SIG)

DECLARE_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)

#ifndef OPENSSL_NO_RSA

DECLARE_PEM_rw_cb(RSAPrivateKey, RSA)

DECLARE_PEM_rw_const(RSAPublicKey, RSA)
DECLARE_PEM_rw(RSA_PUBKEY, RSA)

#endif

#ifndef OPENSSL_NO_DSA

DECLARE_PEM_rw_cb(DSAPrivateKey, DSA)

DECLARE_PEM_rw(DSA_PUBKEY, DSA)

DECLARE_PEM_rw_const(DSAparams, DSA)

#endif

#ifndef OPENSSL_NO_EC
DECLARE_PEM_rw_const(ECPKParameters, EC_GROUP)
DECLARE_PEM_rw_cb(ECPrivateKey, EC_KEY)
DECLARE_PEM_rw(EC_PUBKEY, EC_KEY)
#endif

#ifndef OPENSSL_NO_DH

DECLARE_PEM_rw_const(DHparams, DH)

#endif

DECLARE_PEM_rw_cb(PrivateKey, EVP_PKEY)

DECLARE_PEM_rw(PUBKEY, EVP_PKEY)

int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid,
    char *kstr, int klen,
    pem_password_cb *cb, void *u);
int PEM_write_bio_PKCS8PrivateKey(BIO *, EVP_PKEY *, const EVP_CIPHER *,
    char *, int, pem_password_cb *, void *);
int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
    char *kstr, int klen,
    pem_password_cb *cb, void *u);
int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
    char *kstr, int klen,
    pem_password_cb *cb, void *u);
EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
    void *u);

int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
    char *kstr, int klen,
    pem_password_cb *cb, void *u);
int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
    char *kstr, int klen,
    pem_password_cb *cb, void *u);
int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
    char *kstr, int klen,
    pem_password_cb *cb, void *u);

EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
    void *u);

int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
    char *kstr, int klen, pem_password_cb *cd, void *u);

EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x);
int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x);


EVP_PKEY *b2i_PrivateKey(const unsigned char **in, long length);
EVP_PKEY *b2i_PublicKey(const unsigned char **in, long length);
EVP_PKEY *b2i_PrivateKey_bio(BIO *in);
EVP_PKEY *b2i_PublicKey_bio(BIO *in);
int i2b_PrivateKey_bio(BIO *out, EVP_PKEY *pk);
int i2b_PublicKey_bio(BIO *out, EVP_PKEY *pk);
#ifndef OPENSSL_NO_RC4
EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
int i2b_PVK_bio(BIO *out, EVP_PKEY *pk, int enclevel, pem_password_cb *cb,
    void *u);
#endif


/* 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_PEM_strings(void);

/* Error codes for the PEM functions. */

/* Function codes. */
#define PEM_F_B2I_DSS					 127
#define PEM_F_B2I_PVK_BIO				 128
#define PEM_F_B2I_RSA					 129
#define PEM_F_CHECK_BITLEN_DSA				 130
#define PEM_F_CHECK_BITLEN_RSA				 131
#define PEM_F_D2I_PKCS8PRIVATEKEY_BIO			 120
#define PEM_F_D2I_PKCS8PRIVATEKEY_FP			 121
#define PEM_F_DO_B2I					 132
#define PEM_F_DO_B2I_BIO				 133
#define PEM_F_DO_BLOB_HEADER				 134
#define PEM_F_DO_PK8PKEY				 126
#define PEM_F_DO_PK8PKEY_FP				 125
#define PEM_F_DO_PVK_BODY				 135
#define PEM_F_DO_PVK_HEADER				 136
#define PEM_F_I2B_PVK					 137
#define PEM_F_I2B_PVK_BIO				 138
#define PEM_F_LOAD_IV					 101
#define PEM_F_PEM_ASN1_READ				 102
#define PEM_F_PEM_ASN1_READ_BIO				 103
#define PEM_F_PEM_ASN1_WRITE				 104
#define PEM_F_PEM_ASN1_WRITE_BIO			 105
#define PEM_F_PEM_DEF_CALLBACK				 100
#define PEM_F_PEM_DO_HEADER				 106
#define PEM_F_PEM_F_PEM_WRITE_PKCS8PRIVATEKEY		 118
#define PEM_F_PEM_GET_EVP_CIPHER_INFO			 107
#define PEM_F_PEM_PK8PKEY				 119
#define PEM_F_PEM_READ					 108
#define PEM_F_PEM_READ_BIO				 109
#define PEM_F_PEM_READ_BIO_PARAMETERS			 140
#define PEM_F_PEM_READ_BIO_PRIVATEKEY			 123
#define PEM_F_PEM_READ_PRIVATEKEY			 124
#define PEM_F_PEM_SEALFINAL				 110
#define PEM_F_PEM_SEALINIT				 111
#define PEM_F_PEM_SIGNFINAL				 112
#define PEM_F_PEM_WRITE					 113
#define PEM_F_PEM_WRITE_BIO				 114
#define PEM_F_PEM_WRITE_PRIVATEKEY			 139
#define PEM_F_PEM_X509_INFO_READ			 115
#define PEM_F_PEM_X509_INFO_READ_BIO			 116
#define PEM_F_PEM_X509_INFO_WRITE_BIO			 117

/* Reason codes. */
#define PEM_R_BAD_BASE64_DECODE				 100
#define PEM_R_BAD_DECRYPT				 101
#define PEM_R_BAD_END_LINE				 102
#define PEM_R_BAD_IV_CHARS				 103
#define PEM_R_BAD_MAGIC_NUMBER				 116
#define PEM_R_BAD_PASSWORD_READ				 104
#define PEM_R_BAD_VERSION_NUMBER			 117
#define PEM_R_BIO_WRITE_FAILURE				 118
#define PEM_R_CIPHER_IS_NULL				 127
#define PEM_R_ERROR_CONVERTING_PRIVATE_KEY		 115
#define PEM_R_EXPECTING_PRIVATE_KEY_BLOB		 119
#define PEM_R_EXPECTING_PUBLIC_KEY_BLOB			 120
#define PEM_R_INCONSISTENT_HEADER			 121
#define PEM_R_KEYBLOB_HEADER_PARSE_ERROR		 122
#define PEM_R_KEYBLOB_TOO_SHORT				 123
#define PEM_R_NOT_DEK_INFO				 105
#define PEM_R_NOT_ENCRYPTED				 106
#define PEM_R_NOT_PROC_TYPE				 107
#define PEM_R_NO_START_LINE				 108
#define PEM_R_PROBLEMS_GETTING_PASSWORD			 109
#define PEM_R_PUBLIC_KEY_NO_RSA				 110
#define PEM_R_PVK_DATA_TOO_SHORT			 124
#define PEM_R_PVK_TOO_SHORT				 125
#define PEM_R_READ_KEY					 111
#define PEM_R_SHORT_HEADER				 112
#define PEM_R_UNSUPPORTED_CIPHER			 113
#define PEM_R_UNSUPPORTED_ENCRYPTION			 114
#define PEM_R_UNSUPPORTED_KEY_COMPONENTS		 126

#ifdef  __cplusplus
}
#endif
#endif