/* $OpenBSD: x509.h,v 1.126 2026/01/01 06:51:49 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * ECDH support in OpenSSL originally developed by
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#ifndef HEADER_X509_H
#define HEADER_X509_H

#include <openssl/opensslconf.h>

#include <openssl/asn1.h>
#ifndef OPENSSL_NO_BIO
#include <openssl/bio.h>
#endif
#ifndef OPENSSL_NO_BUFFER
#include <openssl/buffer.h>
#endif
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif
#ifndef OPENSSL_NO_DSA
#include <openssl/dsa.h>
#endif
#ifndef OPENSSL_NO_EC
#include <openssl/ec.h>
#endif
#ifndef OPENSSL_NO_EVP
#include <openssl/evp.h>
#endif
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_SHA
#include <openssl/sha.h>
#endif
#include <openssl/stack.h>
#include <openssl/safestack.h>

#include <openssl/ossl_typ.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define X509_FILETYPE_PEM       1
#define X509_FILETYPE_ASN1      2
#define X509_FILETYPE_DEFAULT   3

#define X509v3_KU_DIGITAL_SIGNATURE     0x0080
#define X509v3_KU_NON_REPUDIATION       0x0040
#define X509v3_KU_KEY_ENCIPHERMENT      0x0020
#define X509v3_KU_DATA_ENCIPHERMENT     0x0010
#define X509v3_KU_KEY_AGREEMENT         0x0008
#define X509v3_KU_KEY_CERT_SIGN         0x0004
#define X509v3_KU_CRL_SIGN              0x0002
#define X509v3_KU_ENCIPHER_ONLY         0x0001
#define X509v3_KU_DECIPHER_ONLY         0x8000
#define X509v3_KU_UNDEF                 0xffff

struct X509_algor_st {
        ASN1_OBJECT *algorithm;
        ASN1_TYPE *parameter;
} /* X509_ALGOR */;

typedef STACK_OF(X509_ALGOR) X509_ALGORS;

typedef struct X509_val_st X509_VAL;

typedef struct X509_sig_st X509_SIG;

typedef struct X509_name_entry_st X509_NAME_ENTRY;

DECLARE_STACK_OF(X509_NAME_ENTRY)

DECLARE_STACK_OF(X509_NAME)

typedef struct X509_extension_st X509_EXTENSION;

typedef STACK_OF(X509_EXTENSION) X509_EXTENSIONS;

DECLARE_STACK_OF(X509_EXTENSION)

typedef struct x509_attributes_st X509_ATTRIBUTE;

DECLARE_STACK_OF(X509_ATTRIBUTE)

typedef struct X509_req_info_st X509_REQ_INFO;

typedef struct X509_req_st X509_REQ;

typedef struct x509_cinf_st X509_CINF;

DECLARE_STACK_OF(X509)

#define X509_TRUST_COMPAT       1
#define X509_TRUST_SSL_CLIENT   2
#define X509_TRUST_SSL_SERVER   3
#define X509_TRUST_EMAIL        4
#define X509_TRUST_OBJECT_SIGN  5
#define X509_TRUST_OCSP_SIGN    6
#define X509_TRUST_OCSP_REQUEST 7
#define X509_TRUST_TSA          8

/* Keep these up to date! */
#define X509_TRUST_MIN          1
#define X509_TRUST_MAX          8

/* Flags for X509_print_ex() */

#define X509_FLAG_COMPAT                0
#define X509_FLAG_NO_HEADER             1L
#define X509_FLAG_NO_VERSION            (1L << 1)
#define X509_FLAG_NO_SERIAL             (1L << 2)
#define X509_FLAG_NO_SIGNAME            (1L << 3)
#define X509_FLAG_NO_ISSUER             (1L << 4)
#define X509_FLAG_NO_VALIDITY           (1L << 5)
#define X509_FLAG_NO_SUBJECT            (1L << 6)
#define X509_FLAG_NO_PUBKEY             (1L << 7)
#define X509_FLAG_NO_EXTENSIONS         (1L << 8)
#define X509_FLAG_NO_SIGDUMP            (1L << 9)
#define X509_FLAG_NO_AUX                (1L << 10)
#define X509_FLAG_NO_ATTRIBUTES         (1L << 11)
#define X509_FLAG_NO_IDS                (1L << 12)

/* Flags specific to X509_NAME_print_ex() */

/* The field separator information */

#define XN_FLAG_SEP_MASK        (0xf << 16)

#define XN_FLAG_COMPAT          0               /* Traditional SSLeay: use old X509_NAME_print */
#define XN_FLAG_SEP_COMMA_PLUS  (1 << 16)       /* RFC2253 ,+ */
#define XN_FLAG_SEP_CPLUS_SPC   (2 << 16)       /* ,+ spaced: more readable */
#define XN_FLAG_SEP_SPLUS_SPC   (3 << 16)       /* ;+ spaced */
#define XN_FLAG_SEP_MULTILINE   (4 << 16)       /* One line per field */

#define XN_FLAG_DN_REV          (1 << 20)       /* Reverse DN order */

/* How the field name is shown */

#define XN_FLAG_FN_MASK         (0x3 << 21)

#define XN_FLAG_FN_SN           0               /* Object short name */
#define XN_FLAG_FN_LN           (1 << 21)       /* Object long name */
#define XN_FLAG_FN_OID          (2 << 21)       /* Always use OIDs */
#define XN_FLAG_FN_NONE         (3 << 21)       /* No field names */

#define XN_FLAG_SPC_EQ          (1 << 23)       /* Put spaces round '=' */

/* This determines if we dump fields we don't recognise:
 * RFC2253 requires this.
 */

#define XN_FLAG_DUMP_UNKNOWN_FIELDS (1 << 24)

#define XN_FLAG_FN_ALIGN        (1 << 25)       /* Align field names to 20 characters */

/* Complete set of RFC2253 flags */

#define XN_FLAG_RFC2253 (ASN1_STRFLGS_RFC2253 | \
                        XN_FLAG_SEP_COMMA_PLUS | \
                        XN_FLAG_DN_REV | \
                        XN_FLAG_FN_SN | \
                        XN_FLAG_DUMP_UNKNOWN_FIELDS)

/* readable oneline form */

#define XN_FLAG_ONELINE (ASN1_STRFLGS_RFC2253 | \
                        ASN1_STRFLGS_ESC_QUOTE | \
                        XN_FLAG_SEP_CPLUS_SPC | \
                        XN_FLAG_SPC_EQ | \
                        XN_FLAG_FN_SN)

/* readable multiline form */

#define XN_FLAG_MULTILINE (ASN1_STRFLGS_ESC_CTRL | \
                        ASN1_STRFLGS_ESC_MSB | \
                        XN_FLAG_SEP_MULTILINE | \
                        XN_FLAG_SPC_EQ | \
                        XN_FLAG_FN_LN | \
                        XN_FLAG_FN_ALIGN)

DECLARE_STACK_OF(X509_REVOKED)

typedef struct X509_crl_info_st X509_CRL_INFO;

DECLARE_STACK_OF(X509_CRL)

/* www/apache2 reaches into this. */
typedef struct private_key_st {
        EVP_PKEY *dec_pkey;
} X509_PKEY;

#ifndef OPENSSL_NO_EVP
typedef struct X509_info_st {
        X509 *x509;
        X509_CRL *crl;
        X509_PKEY *x_pkey;

        EVP_CIPHER_INFO enc_cipher;
        int enc_len;
        char *enc_data;

        int references;
} X509_INFO;

DECLARE_STACK_OF(X509_INFO)
#endif

/* The next 2 structures and their 8 routines were sent to me by
 * Pat Richard <patr@x509.com> and are used to manipulate
 * Netscapes spki structures - useful if you are writing a CA web page
 */
typedef struct Netscape_spkac_st {
        X509_PUBKEY *pubkey;
        ASN1_IA5STRING *challenge;      /* challenge sent in atlas >= PR2 */
} NETSCAPE_SPKAC;

typedef struct Netscape_spki_st {
        NETSCAPE_SPKAC *spkac;  /* signed public key and challenge */
        X509_ALGOR *sig_algor;
        ASN1_BIT_STRING *signature;
} NETSCAPE_SPKI;

typedef struct PBEPARAM_st {
        ASN1_OCTET_STRING *salt;
        ASN1_INTEGER *iter;
} PBEPARAM;

#ifdef  __cplusplus
}
#endif

#include <openssl/x509_vfy.h>
#include <openssl/pkcs7.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define         X509_extract_key(x)     X509_get_pubkey(x) /*****/
#define         X509_REQ_extract_key(a) X509_REQ_get_pubkey(a)
#define         X509_name_cmp(a, b)     X509_NAME_cmp((a), (b))

int X509_CRL_up_ref(X509_CRL *x);
int X509_CRL_get_signature_nid(const X509_CRL *crl);

int i2d_re_X509_CRL_tbs(X509_CRL *req, unsigned char **pp);

const STACK_OF(X509_EXTENSION) *X509_CRL_get0_extensions(const X509_CRL *crl);
long X509_CRL_get_version(const X509_CRL *crl);
const ASN1_TIME *X509_CRL_get0_lastUpdate(const X509_CRL *crl);
const ASN1_TIME *X509_CRL_get0_nextUpdate(const X509_CRL *crl);
ASN1_TIME *X509_CRL_get_lastUpdate(X509_CRL *crl);
ASN1_TIME *X509_CRL_get_nextUpdate(X509_CRL *crl);
X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl);
STACK_OF(X509_REVOKED) *X509_CRL_get_REVOKED(X509_CRL *crl);
void X509_CRL_get0_signature(const X509_CRL *crl, const ASN1_BIT_STRING **psig,
    const X509_ALGOR **palg);

const X509_ALGOR *X509_CRL_get0_tbs_sigalg(const X509_CRL *crl);

int X509_REQ_get_signature_nid(const X509_REQ *req);

void X509_REQ_get0_signature(const X509_REQ *req, const ASN1_BIT_STRING **psig,
    const X509_ALGOR **palg);

X509_PUBKEY     *X509_get_X509_PUBKEY(const X509 *x);

const char *X509_verify_cert_error_string(long n);

#ifndef OPENSSL_NO_EVP
int X509_verify(X509 *a, EVP_PKEY *r);

int X509_REQ_verify(X509_REQ *a, EVP_PKEY *r);
int X509_CRL_verify(X509_CRL *a, EVP_PKEY *r);
int NETSCAPE_SPKI_verify(NETSCAPE_SPKI *a, EVP_PKEY *r);

NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(const char *str, int len);
char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *x);
EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x);
int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey);

int NETSCAPE_SPKI_print(BIO *out, NETSCAPE_SPKI *spki);

int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent);
int X509_signature_print(BIO *bp, const X509_ALGOR *alg,
    const ASN1_STRING *sig);

int X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_sign_ctx(X509 *x, EVP_MD_CTX *ctx);
int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_REQ_sign_ctx(X509_REQ *x, EVP_MD_CTX *ctx);
int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_CRL_sign_ctx(X509_CRL *x, EVP_MD_CTX *ctx);
int NETSCAPE_SPKI_sign(NETSCAPE_SPKI *x, EVP_PKEY *pkey, const EVP_MD *md);

int X509_pubkey_digest(const X509 *data, const EVP_MD *type,
                unsigned char *md, unsigned int *len);
int X509_digest(const X509 *data, const EVP_MD *type,
                unsigned char *md, unsigned int *len);
int X509_CRL_digest(const X509_CRL *data, const EVP_MD *type,
                unsigned char *md, unsigned int *len);
int X509_REQ_digest(const X509_REQ *data, const EVP_MD *type,
                unsigned char *md, unsigned int *len);
int X509_NAME_digest(const X509_NAME *data, const EVP_MD *type,
                unsigned char *md, unsigned int *len);
#endif

X509 *d2i_X509_fp(FILE *fp, X509 **x509);
int i2d_X509_fp(FILE *fp, X509 *x509);
X509_CRL *d2i_X509_CRL_fp(FILE *fp, X509_CRL **crl);
int i2d_X509_CRL_fp(FILE *fp, X509_CRL *crl);
X509_REQ *d2i_X509_REQ_fp(FILE *fp, X509_REQ **req);
int i2d_X509_REQ_fp(FILE *fp, X509_REQ *req);
#ifndef OPENSSL_NO_RSA
RSA *d2i_RSAPrivateKey_fp(FILE *fp, RSA **rsa);
int i2d_RSAPrivateKey_fp(FILE *fp, RSA *rsa);
RSA *d2i_RSAPublicKey_fp(FILE *fp, RSA **rsa);
int i2d_RSAPublicKey_fp(FILE *fp, RSA *rsa);
RSA *d2i_RSA_PUBKEY_fp(FILE *fp, RSA **rsa);
int i2d_RSA_PUBKEY_fp(FILE *fp, RSA *rsa);
#endif
#ifndef OPENSSL_NO_DSA
DSA *d2i_DSA_PUBKEY_fp(FILE *fp, DSA **dsa);
int i2d_DSA_PUBKEY_fp(FILE *fp, DSA *dsa);
DSA *d2i_DSAPrivateKey_fp(FILE *fp, DSA **dsa);
int i2d_DSAPrivateKey_fp(FILE *fp, DSA *dsa);
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *d2i_EC_PUBKEY_fp(FILE *fp, EC_KEY **eckey);
int   i2d_EC_PUBKEY_fp(FILE *fp, EC_KEY *eckey);
EC_KEY *d2i_ECPrivateKey_fp(FILE *fp, EC_KEY **eckey);
int   i2d_ECPrivateKey_fp(FILE *fp, EC_KEY *eckey);
#endif
X509_SIG *d2i_PKCS8_fp(FILE *fp, X509_SIG **p8);
int i2d_PKCS8_fp(FILE *fp, X509_SIG *p8);
PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_fp(FILE *fp,
                                                PKCS8_PRIV_KEY_INFO **p8inf);
int i2d_PKCS8_PRIV_KEY_INFO_fp(FILE *fp, PKCS8_PRIV_KEY_INFO *p8inf);
int i2d_PKCS8PrivateKeyInfo_fp(FILE *fp, EVP_PKEY *key);
int i2d_PrivateKey_fp(FILE *fp, EVP_PKEY *pkey);
EVP_PKEY *d2i_PrivateKey_fp(FILE *fp, EVP_PKEY **a);
int i2d_PUBKEY_fp(FILE *fp, EVP_PKEY *pkey);
EVP_PKEY *d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **a);

#ifndef OPENSSL_NO_BIO
X509 *d2i_X509_bio(BIO *bp, X509 **x509);
int i2d_X509_bio(BIO *bp, X509 *x509);
X509_CRL *d2i_X509_CRL_bio(BIO *bp, X509_CRL **crl);
int i2d_X509_CRL_bio(BIO *bp, X509_CRL *crl);
X509_REQ *d2i_X509_REQ_bio(BIO *bp, X509_REQ **req);
int i2d_X509_REQ_bio(BIO *bp, X509_REQ *req);
#ifndef OPENSSL_NO_RSA
RSA *d2i_RSAPrivateKey_bio(BIO *bp, RSA **rsa);
int i2d_RSAPrivateKey_bio(BIO *bp, RSA *rsa);
RSA *d2i_RSAPublicKey_bio(BIO *bp, RSA **rsa);
int i2d_RSAPublicKey_bio(BIO *bp, RSA *rsa);
RSA *d2i_RSA_PUBKEY_bio(BIO *bp, RSA **rsa);
int i2d_RSA_PUBKEY_bio(BIO *bp, RSA *rsa);
#endif
#ifndef OPENSSL_NO_DSA
DSA *d2i_DSA_PUBKEY_bio(BIO *bp, DSA **dsa);
int i2d_DSA_PUBKEY_bio(BIO *bp, DSA *dsa);
DSA *d2i_DSAPrivateKey_bio(BIO *bp, DSA **dsa);
int i2d_DSAPrivateKey_bio(BIO *bp, DSA *dsa);
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *d2i_EC_PUBKEY_bio(BIO *bp, EC_KEY **eckey);
int   i2d_EC_PUBKEY_bio(BIO *bp, EC_KEY *eckey);
EC_KEY *d2i_ECPrivateKey_bio(BIO *bp, EC_KEY **eckey);
int   i2d_ECPrivateKey_bio(BIO *bp, EC_KEY *eckey);
#endif
X509_SIG *d2i_PKCS8_bio(BIO *bp, X509_SIG **p8);
int i2d_PKCS8_bio(BIO *bp, X509_SIG *p8);
PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO_bio(BIO *bp,
                                                PKCS8_PRIV_KEY_INFO **p8inf);
int i2d_PKCS8_PRIV_KEY_INFO_bio(BIO *bp, PKCS8_PRIV_KEY_INFO *p8inf);
int i2d_PKCS8PrivateKeyInfo_bio(BIO *bp, EVP_PKEY *key);
int i2d_PrivateKey_bio(BIO *bp, EVP_PKEY *pkey);
EVP_PKEY *d2i_PrivateKey_bio(BIO *bp, EVP_PKEY **a);
int i2d_PUBKEY_bio(BIO *bp, EVP_PKEY *pkey);
EVP_PKEY *d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **a);
#endif

X509 *X509_dup(X509 *x509);
X509_ATTRIBUTE *X509_ATTRIBUTE_dup(X509_ATTRIBUTE *xa);
X509_EXTENSION *X509_EXTENSION_dup(X509_EXTENSION *ex);
X509_CRL *X509_CRL_dup(X509_CRL *crl);
X509_REQ *X509_REQ_dup(X509_REQ *req);
X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *xn);
int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval);
void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype, const void **ppval,
    const X509_ALGOR *algor);
int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b);

X509_NAME *X509_NAME_dup(X509_NAME *xn);
int X509_NAME_get0_der(X509_NAME *nm, const unsigned char **pder, size_t *pderlen);
X509_NAME_ENTRY *X509_NAME_ENTRY_dup(X509_NAME_ENTRY *ne);

int             X509_cmp_time(const ASN1_TIME *s, time_t *t);
int             X509_cmp_current_time(const ASN1_TIME *s);
ASN1_TIME *     X509_time_adj(ASN1_TIME *s, long adj, time_t *t);
ASN1_TIME *     X509_time_adj_ex(ASN1_TIME *s,
                                int offset_day, long offset_sec, time_t *t);
ASN1_TIME *     X509_gmtime_adj(ASN1_TIME *s, long adj);

const char *    X509_get_default_cert_area(void );
const char *    X509_get_default_cert_dir(void );
const char *    X509_get_default_cert_file(void );
const char *    X509_get_default_cert_dir_env(void );
const char *    X509_get_default_cert_file_env(void );
const char *    X509_get_default_private_dir(void );

X509_REQ *      X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md);
X509 *          X509_REQ_to_X509(X509_REQ *r, int days, EVP_PKEY *pkey);

X509_ALGOR *X509_ALGOR_new(void);
void X509_ALGOR_free(X509_ALGOR *a);
X509_ALGOR *d2i_X509_ALGOR(X509_ALGOR **a, const unsigned char **in, long len);
int i2d_X509_ALGOR(X509_ALGOR *a, unsigned char **out);
extern const ASN1_ITEM X509_ALGOR_it;
X509_ALGORS *d2i_X509_ALGORS(X509_ALGORS **a, const unsigned char **in, long len);
int i2d_X509_ALGORS(X509_ALGORS *a, unsigned char **out);
extern const ASN1_ITEM X509_ALGORS_it;
X509_VAL *X509_VAL_new(void);
void X509_VAL_free(X509_VAL *a);
X509_VAL *d2i_X509_VAL(X509_VAL **a, const unsigned char **in, long len);
int i2d_X509_VAL(X509_VAL *a, unsigned char **out);
extern const ASN1_ITEM X509_VAL_it;

X509_PUBKEY *X509_PUBKEY_new(void);
void X509_PUBKEY_free(X509_PUBKEY *a);
X509_PUBKEY *d2i_X509_PUBKEY(X509_PUBKEY **a, const unsigned char **in, long len);
int i2d_X509_PUBKEY(X509_PUBKEY *a, unsigned char **out);
extern const ASN1_ITEM X509_PUBKEY_it;

int             X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey);
EVP_PKEY *      X509_PUBKEY_get(X509_PUBKEY *key);
EVP_PKEY *      X509_PUBKEY_get0(X509_PUBKEY *key);
int             X509_get_pubkey_parameters(EVP_PKEY *pkey,
                                           STACK_OF(X509) *chain);
int             i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp);
EVP_PKEY *      d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp,
                        long length);
#ifndef OPENSSL_NO_RSA
int             i2d_RSA_PUBKEY(RSA *a, unsigned char **pp);
RSA *           d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp,
                        long length);
#endif
#ifndef OPENSSL_NO_DSA
int             i2d_DSA_PUBKEY(DSA *a, unsigned char **pp);
DSA *           d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp,
                        long length);
#endif
#ifndef OPENSSL_NO_EC
int             i2d_EC_PUBKEY(EC_KEY *a, unsigned char **pp);
EC_KEY          *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp,
                        long length);
#endif

X509_SIG *X509_SIG_new(void);
void X509_SIG_free(X509_SIG *a);
X509_SIG *d2i_X509_SIG(X509_SIG **a, const unsigned char **in, long len);
int i2d_X509_SIG(X509_SIG *a, unsigned char **out);
extern const ASN1_ITEM X509_SIG_it;
void X509_SIG_get0(const X509_SIG *sig, const X509_ALGOR **palg,
    const ASN1_OCTET_STRING **pdigest);
void X509_SIG_getm(X509_SIG *sig, X509_ALGOR **palg,
    ASN1_OCTET_STRING **pdigest);

X509_REQ_INFO *X509_REQ_INFO_new(void);
void X509_REQ_INFO_free(X509_REQ_INFO *a);
X509_REQ_INFO *d2i_X509_REQ_INFO(X509_REQ_INFO **a, const unsigned char **in, long len);
int i2d_X509_REQ_INFO(X509_REQ_INFO *a, unsigned char **out);
extern const ASN1_ITEM X509_REQ_INFO_it;
X509_REQ *X509_REQ_new(void);
void X509_REQ_free(X509_REQ *a);
X509_REQ *d2i_X509_REQ(X509_REQ **a, const unsigned char **in, long len);
int i2d_X509_REQ(X509_REQ *a, unsigned char **out);
extern const ASN1_ITEM X509_REQ_it;

X509_ATTRIBUTE *X509_ATTRIBUTE_new(void);
void X509_ATTRIBUTE_free(X509_ATTRIBUTE *a);
X509_ATTRIBUTE *d2i_X509_ATTRIBUTE(X509_ATTRIBUTE **a, const unsigned char **in, long len);
int i2d_X509_ATTRIBUTE(X509_ATTRIBUTE *a, unsigned char **out);
extern const ASN1_ITEM X509_ATTRIBUTE_it;
X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value);

X509_EXTENSION *X509_EXTENSION_new(void);
void X509_EXTENSION_free(X509_EXTENSION *a);
X509_EXTENSION *d2i_X509_EXTENSION(X509_EXTENSION **a, const unsigned char **in, long len);
int i2d_X509_EXTENSION(X509_EXTENSION *a, unsigned char **out);
extern const ASN1_ITEM X509_EXTENSION_it;
X509_EXTENSIONS *d2i_X509_EXTENSIONS(X509_EXTENSIONS **a, const unsigned char **in, long len);
int i2d_X509_EXTENSIONS(X509_EXTENSIONS *a, unsigned char **out);
extern const ASN1_ITEM X509_EXTENSIONS_it;

X509_NAME_ENTRY *X509_NAME_ENTRY_new(void);
void X509_NAME_ENTRY_free(X509_NAME_ENTRY *a);
X509_NAME_ENTRY *d2i_X509_NAME_ENTRY(X509_NAME_ENTRY **a, const unsigned char **in, long len);
int i2d_X509_NAME_ENTRY(X509_NAME_ENTRY *a, unsigned char **out);
extern const ASN1_ITEM X509_NAME_ENTRY_it;

X509_NAME *X509_NAME_new(void);
void X509_NAME_free(X509_NAME *a);
X509_NAME *d2i_X509_NAME(X509_NAME **a, const unsigned char **in, long len);
int i2d_X509_NAME(X509_NAME *a, unsigned char **out);
extern const ASN1_ITEM X509_NAME_it;

int             X509_NAME_set(X509_NAME **xn, X509_NAME *name);

X509_CINF *X509_CINF_new(void);
void X509_CINF_free(X509_CINF *a);
X509_CINF *d2i_X509_CINF(X509_CINF **a, const unsigned char **in, long len);
int i2d_X509_CINF(X509_CINF *a, unsigned char **out);
extern const ASN1_ITEM X509_CINF_it;

X509 *X509_new(void);
void X509_free(X509 *a);
X509 *d2i_X509(X509 **a, const unsigned char **in, long len);
int i2d_X509(X509 *a, unsigned char **out);
extern const ASN1_ITEM X509_it;

int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
             CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int X509_set_ex_data(X509 *r, int idx, void *arg);
void *X509_get_ex_data(X509 *r, int idx);
int             i2d_X509_AUX(X509 *a, unsigned char **pp);
X509 *          d2i_X509_AUX(X509 **a, const unsigned char **pp, long length);

int i2d_re_X509_tbs(X509 *x, unsigned char **pp);

/* Flags returned by X509_get_signature_info(): valid and suitable for TLS. */
#define X509_SIG_INFO_VALID     1
#define X509_SIG_INFO_TLS       2
int X509_get_signature_info(X509 *x, int *mdnid, int *pknid, int *secbits,
    uint32_t *flags);

void X509_get0_signature(const ASN1_BIT_STRING **psig,
    const X509_ALGOR **palg, const X509 *x);
int X509_get_signature_nid(const X509 *x);

int X509_alias_set1(X509 *x, const unsigned char *name, int len);
int X509_keyid_set1(X509 *x, const unsigned char *id, int len);
unsigned char *X509_alias_get0(X509 *x, int *len);
unsigned char *X509_keyid_get0(X509 *x, int *len);
int X509_add1_trust_object(X509 *x, const ASN1_OBJECT *obj);
int X509_add1_reject_object(X509 *x, const ASN1_OBJECT *obj);
void X509_trust_clear(X509 *x);
void X509_reject_clear(X509 *x);

X509_REVOKED *X509_REVOKED_new(void);
void X509_REVOKED_free(X509_REVOKED *a);
X509_REVOKED *X509_REVOKED_dup(X509_REVOKED *a);
X509_REVOKED *d2i_X509_REVOKED(X509_REVOKED **a, const unsigned char **in, long len);
int i2d_X509_REVOKED(X509_REVOKED *a, unsigned char **out);
extern const ASN1_ITEM X509_REVOKED_it;

X509_CRL_INFO *X509_CRL_INFO_new(void);
void X509_CRL_INFO_free(X509_CRL_INFO *a);
X509_CRL_INFO *d2i_X509_CRL_INFO(X509_CRL_INFO **a, const unsigned char **in, long len);
int i2d_X509_CRL_INFO(X509_CRL_INFO *a, unsigned char **out);
extern const ASN1_ITEM X509_CRL_INFO_it;

X509_CRL *X509_CRL_new(void);
void X509_CRL_free(X509_CRL *a);
X509_CRL *d2i_X509_CRL(X509_CRL **a, const unsigned char **in, long len);
int i2d_X509_CRL(X509_CRL *a, unsigned char **out);
extern const ASN1_ITEM X509_CRL_it;

int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev);
int X509_CRL_get0_by_serial(X509_CRL *crl,
                X509_REVOKED **ret, ASN1_INTEGER *serial);
int X509_CRL_get0_by_cert(X509_CRL *crl, X509_REVOKED **ret, X509 *x);

NETSCAPE_SPKI *NETSCAPE_SPKI_new(void);
void NETSCAPE_SPKI_free(NETSCAPE_SPKI *a);
NETSCAPE_SPKI *d2i_NETSCAPE_SPKI(NETSCAPE_SPKI **a, const unsigned char **in, long len);
int i2d_NETSCAPE_SPKI(NETSCAPE_SPKI *a, unsigned char **out);
extern const ASN1_ITEM NETSCAPE_SPKI_it;
NETSCAPE_SPKAC *NETSCAPE_SPKAC_new(void);
void NETSCAPE_SPKAC_free(NETSCAPE_SPKAC *a);
NETSCAPE_SPKAC *d2i_NETSCAPE_SPKAC(NETSCAPE_SPKAC **a, const unsigned char **in, long len);
int i2d_NETSCAPE_SPKAC(NETSCAPE_SPKAC *a, unsigned char **out);
extern const ASN1_ITEM NETSCAPE_SPKAC_it;

#ifndef OPENSSL_NO_EVP
X509_INFO *     X509_INFO_new(void);
void            X509_INFO_free(X509_INFO *a);
char *          X509_NAME_oneline(const X509_NAME *a, char *buf, int size);

int ASN1_item_digest(const ASN1_ITEM *it, const EVP_MD *type, void *data,
        unsigned char *md, unsigned int *len);

int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *algor1,
        ASN1_BIT_STRING *signature, void *data, EVP_PKEY *pkey);

int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,
        ASN1_BIT_STRING *signature,
        void *data, EVP_PKEY *pkey, const EVP_MD *type);
int ASN1_item_sign_ctx(const ASN1_ITEM *it,
                X509_ALGOR *algor1, X509_ALGOR *algor2,
                ASN1_BIT_STRING *signature, void *asn, EVP_MD_CTX *ctx);
#endif

const STACK_OF(X509_EXTENSION) *X509_get0_extensions(const X509 *x);
void            X509_get0_uids(const X509 *x, const ASN1_BIT_STRING **issuerUID,
                    const ASN1_BIT_STRING **subjectUID);
const X509_ALGOR *X509_get0_tbs_sigalg(const X509 *x);
int             X509_set_version(X509 *x, long version);
long            X509_get_version(const X509 *x);
int             X509_set_serialNumber(X509 *x, ASN1_INTEGER *serial);
ASN1_INTEGER *  X509_get_serialNumber(X509 *x);
const ASN1_INTEGER *X509_get0_serialNumber(const X509 *x);
int             X509_set_issuer_name(X509 *x, X509_NAME *name);
X509_NAME *     X509_get_issuer_name(const X509 *a);
int             X509_set_subject_name(X509 *x, X509_NAME *name);
X509_NAME *     X509_get_subject_name(const X509 *a);
int             X509_set_notBefore(X509 *x, const ASN1_TIME *tm);
int             X509_set1_notBefore(X509 *x, const ASN1_TIME *tm);
int             X509_set_notAfter(X509 *x, const ASN1_TIME *tm);
int             X509_set1_notAfter(X509 *x, const ASN1_TIME *tm);
const ASN1_TIME *X509_get0_notBefore(const X509 *x);
ASN1_TIME *X509_getm_notBefore(const X509 *x);
const ASN1_TIME *X509_get0_notAfter(const X509 *x);
ASN1_TIME *X509_getm_notAfter(const X509 *x);
int             X509_set_pubkey(X509 *x, EVP_PKEY *pkey);
EVP_PKEY *      X509_get_pubkey(X509 *x);
EVP_PKEY *      X509_get0_pubkey(const X509 *x);
ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x);
int             X509_certificate_type(const X509 *x, const EVP_PKEY *pubkey);
int             X509_get_signature_type(const X509 *x);

#define X509_get_notBefore      X509_getm_notBefore
#define X509_get_notAfter       X509_getm_notAfter

int             X509_REQ_set_version(X509_REQ *x, long version);
long            X509_REQ_get_version(const X509_REQ *x);
int             X509_REQ_set_subject_name(X509_REQ *req, X509_NAME *name);
X509_NAME       *X509_REQ_get_subject_name(const X509_REQ *x);
int             X509_REQ_set_pubkey(X509_REQ *x, EVP_PKEY *pkey);
EVP_PKEY *      X509_REQ_get_pubkey(X509_REQ *req);
int             i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp);
EVP_PKEY *      X509_REQ_get0_pubkey(X509_REQ *req);
int             X509_REQ_extension_nid(int nid);
STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req);
int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
                                int nid);
int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts);
int X509_REQ_get_attr_count(const X509_REQ *req);
int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid,
                          int lastpos);
int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, const ASN1_OBJECT *obj,
                          int lastpos);
X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc);
X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc);
int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr);
int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
                        const ASN1_OBJECT *obj, int type,
                        const unsigned char *bytes, int len);
int X509_REQ_add1_attr_by_NID(X509_REQ *req,
                        int nid, int type,
                        const unsigned char *bytes, int len);
int X509_REQ_add1_attr_by_txt(X509_REQ *req,
                        const char *attrname, int type,
                        const unsigned char *bytes, int len);

int X509_CRL_set_version(X509_CRL *x, long version);
int X509_CRL_set_issuer_name(X509_CRL *x, X509_NAME *name);
int X509_CRL_set_lastUpdate(X509_CRL *x, const ASN1_TIME *tm);
int X509_CRL_set1_lastUpdate(X509_CRL *x, const ASN1_TIME *tm);
int X509_CRL_set_nextUpdate(X509_CRL *x, const ASN1_TIME *tm);
int X509_CRL_set1_nextUpdate(X509_CRL *x, const ASN1_TIME *tm);
int X509_CRL_sort(X509_CRL *crl);

const STACK_OF(X509_EXTENSION) *X509_REVOKED_get0_extensions(const X509_REVOKED *x);
const ASN1_TIME *X509_REVOKED_get0_revocationDate(const X509_REVOKED *x);
const ASN1_INTEGER *X509_REVOKED_get0_serialNumber(const X509_REVOKED *x);
int X509_REVOKED_set_revocationDate(X509_REVOKED *r, ASN1_TIME *tm);
int X509_REVOKED_set_serialNumber(X509_REVOKED *x, ASN1_INTEGER *serial);

int             X509_REQ_check_private_key(X509_REQ *x509, EVP_PKEY *pkey);

int             X509_check_private_key(const X509 *x509, const EVP_PKEY *pkey);

int             X509_issuer_and_serial_cmp(const X509 *a, const X509 *b);
unsigned long   X509_issuer_and_serial_hash(X509 *a);

int             X509_issuer_name_cmp(const X509 *a, const X509 *b);
unsigned long   X509_issuer_name_hash(X509 *a);

int             X509_subject_name_cmp(const X509 *a, const X509 *b);
unsigned long   X509_subject_name_hash(X509 *x);

#ifndef OPENSSL_NO_MD5
unsigned long   X509_issuer_name_hash_old(X509 *a);
unsigned long   X509_subject_name_hash_old(X509 *x);
#endif

int             X509_cmp(const X509 *a, const X509 *b);
int             X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b);
unsigned long   X509_NAME_hash(X509_NAME *x);
unsigned long   X509_NAME_hash_old(X509_NAME *x);

int             X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b);
int             X509_CRL_match(const X509_CRL *a, const X509_CRL *b);
int             X509_print_ex_fp(FILE *bp, X509 *x, unsigned long nmflag, unsigned long cflag);
int             X509_print_fp(FILE *bp, X509 *x);
int             X509_CRL_print_fp(FILE *bp, X509_CRL *x);
int             X509_REQ_print_fp(FILE *bp, X509_REQ *req);
int             X509_NAME_print_ex_fp(FILE *fp, const X509_NAME *nm, int indent,
                    unsigned long flags);

#ifndef OPENSSL_NO_BIO
int             X509_NAME_print_ex(BIO *out, const X509_NAME *nm, int indent,
                    unsigned long flags);
int             X509_print_ex(BIO *bp, X509 *x, unsigned long nmflag, unsigned long cflag);
int             X509_print(BIO *bp, X509 *x);
int             X509_ocspid_print(BIO *bp, X509 *x);
int             X509_CRL_print(BIO *bp, X509_CRL *x);
int             X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflag, unsigned long cflag);
int             X509_REQ_print(BIO *bp, X509_REQ *req);
#endif

int             X509_NAME_entry_count(const X509_NAME *name);
int             X509_NAME_get_text_by_NID(X509_NAME *name, int nid,
                        char *buf, int len);
int             X509_NAME_get_text_by_OBJ(X509_NAME *name,
                        const ASN1_OBJECT *obj, char *buf, int len);

/* NOTE: you should be passing -1, not 0 as lastpos.  The functions that use
 * lastpos, search after that position on. */
int             X509_NAME_get_index_by_NID(const X509_NAME *name, int nid,
                        int lastpos);
int             X509_NAME_get_index_by_OBJ(const X509_NAME *name,
                        const ASN1_OBJECT *obj, int lastpos);
X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc);
X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc);
int             X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne,
                        int loc, int set);
int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj,
    int type, const unsigned char *bytes, int len, int loc, int set);
int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
                        const unsigned char *bytes, int len, int loc, int set);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
                const char *field, int type, const unsigned char *bytes, int len);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
                        int type, const unsigned char *bytes, int len);
int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
                        const unsigned char *bytes, int len, int loc, int set);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
                        const ASN1_OBJECT *obj, int type,
                        const unsigned char *bytes, int len);
int             X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne,
                        const ASN1_OBJECT *obj);
int             X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
                        const unsigned char *bytes, int len);
ASN1_OBJECT *   X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne);
ASN1_STRING *   X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne);
int             X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne);

int             X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x);
int             X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x,
                                      int nid, int lastpos);
int             X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *x,
                                      const ASN1_OBJECT *obj, int lastpos);
int             X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *x,
                                           int crit, int lastpos);
X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc);
X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc);
STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x,
                                         X509_EXTENSION *ex, int loc);

int             X509_get_ext_count(const X509 *x);
int             X509_get_ext_by_NID(const X509 *x, int nid, int lastpos);
int             X509_get_ext_by_OBJ(const X509 *x, const ASN1_OBJECT *obj,
                    int lastpos);
int             X509_get_ext_by_critical(const X509 *x, int crit, int lastpos);
X509_EXTENSION *X509_get_ext(const X509 *x, int loc);
X509_EXTENSION *X509_delete_ext(X509 *x, int loc);
int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
void    *       X509_get_ext_d2i(const X509 *x, int nid, int *crit, int *idx);
int             X509_add1_ext_i2d(X509 *x, int nid, void *value, int crit,
                                                        unsigned long flags);

int             X509_CRL_get_ext_count(const X509_CRL *x);
int             X509_CRL_get_ext_by_NID(const X509_CRL *x, int nid,
                    int lastpos);
int             X509_CRL_get_ext_by_OBJ(const X509_CRL *x,
                    const ASN1_OBJECT *obj, int lastpos);
int             X509_CRL_get_ext_by_critical(const X509_CRL *x, int crit,
                    int lastpos);
X509_EXTENSION *X509_CRL_get_ext(const X509_CRL *x, int loc);
X509_EXTENSION *X509_CRL_delete_ext(X509_CRL *x, int loc);
int             X509_CRL_add_ext(X509_CRL *x, X509_EXTENSION *ex, int loc);
void    *       X509_CRL_get_ext_d2i(const X509_CRL *x, int nid, int *crit,
                    int *idx);
int             X509_CRL_add1_ext_i2d(X509_CRL *x, int nid, void *value,
                    int crit, unsigned long flags);

int             X509_REVOKED_get_ext_count(const X509_REVOKED *x);
int             X509_REVOKED_get_ext_by_NID(const X509_REVOKED *x, int nid,
                    int lastpos);
int             X509_REVOKED_get_ext_by_OBJ(const X509_REVOKED *x,
                    const ASN1_OBJECT *obj, int lastpos);
int             X509_REVOKED_get_ext_by_critical(const X509_REVOKED *x,
                    int crit, int lastpos);
X509_EXTENSION *X509_REVOKED_get_ext(const X509_REVOKED *x, int loc);
X509_EXTENSION *X509_REVOKED_delete_ext(X509_REVOKED *x, int loc);
int             X509_REVOKED_add_ext(X509_REVOKED *x, X509_EXTENSION *ex,
                    int loc);
void    *       X509_REVOKED_get_ext_d2i(const X509_REVOKED *x, int nid,
                    int *crit, int *idx);
int             X509_REVOKED_add1_ext_i2d(X509_REVOKED *x, int nid, void *value,
                    int crit, unsigned long flags);

X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex,
                        int nid, int crit, ASN1_OCTET_STRING *data);
X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
    const ASN1_OBJECT *obj, int crit, ASN1_OCTET_STRING *data);
int             X509_EXTENSION_set_object(X509_EXTENSION *ex,
                    const ASN1_OBJECT *obj);
int             X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit);
int             X509_EXTENSION_set_data(X509_EXTENSION *ex,
                        ASN1_OCTET_STRING *data);
ASN1_OBJECT *   X509_EXTENSION_get_object(X509_EXTENSION *ex);
ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ne);
int             X509_EXTENSION_get_critical(const X509_EXTENSION *ex);

X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
             int atrtype, const void *data, int len);
X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
             const ASN1_OBJECT *obj, int atrtype, const void *data, int len);
X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
                const char *atrname, int type, const unsigned char *bytes, int len);
int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj);
int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *data, int len);
void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
                                        int atrtype, void *data);
int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr);
ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr);
ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx);

int             X509_verify_cert(X509_STORE_CTX *ctx);

/* lookup a cert from a X509 STACK */
X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
                                     ASN1_INTEGER *serial);
X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name);

extern const ASN1_ITEM PBEPARAM_it;

/* PKCS#8 utilities */

PKCS8_PRIV_KEY_INFO *PKCS8_PRIV_KEY_INFO_new(void);
void PKCS8_PRIV_KEY_INFO_free(PKCS8_PRIV_KEY_INFO *a);
PKCS8_PRIV_KEY_INFO *d2i_PKCS8_PRIV_KEY_INFO(PKCS8_PRIV_KEY_INFO **a, const unsigned char **in, long len);
int i2d_PKCS8_PRIV_KEY_INFO(PKCS8_PRIV_KEY_INFO *a, unsigned char **out);
extern const ASN1_ITEM PKCS8_PRIV_KEY_INFO_it;

EVP_PKEY *EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8);
PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey);

int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj, int version,
    int ptype, void *pval, unsigned char *penc, int penclen);
int PKCS8_pkey_get0(const ASN1_OBJECT **ppkalg, const unsigned char **pk,
    int *ppklen, const X509_ALGOR **pa, const PKCS8_PRIV_KEY_INFO *p8);

const STACK_OF(X509_ATTRIBUTE) *PKCS8_pkey_get0_attrs(const PKCS8_PRIV_KEY_INFO *p8);
int PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO *p8, int nid, int type,
    const unsigned char *bytes, int len);

int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, int ptype,
    void *pval, unsigned char *penc, int penclen);
int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, const unsigned char **pk,
    int *ppklen, X509_ALGOR **pa, X509_PUBKEY *pub);

int X509_up_ref(X509 *x);
STACK_OF(X509) *X509_chain_up_ref(STACK_OF(X509) *chain);

void ERR_load_X509_strings(void);

/* Error codes for the X509 functions. */

/* Function codes. */
#define X509_F_ADD_CERT_DIR                              100
#define X509_F_BY_FILE_CTRL                              101
#define X509_F_CHECK_POLICY                              145
#define X509_F_DIR_CTRL                                  102
#define X509_F_GET_CERT_BY_SUBJECT                       103
#define X509_F_NETSCAPE_SPKI_B64_DECODE                  129
#define X509_F_NETSCAPE_SPKI_B64_ENCODE                  130
#define X509_F_X509AT_ADD1_ATTR                          135
#define X509_F_X509V3_ADD_EXT                            104
#define X509_F_X509_ATTRIBUTE_CREATE_BY_NID              136
#define X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ              137
#define X509_F_X509_ATTRIBUTE_CREATE_BY_TXT              140
#define X509_F_X509_ATTRIBUTE_GET0_DATA                  139
#define X509_F_X509_ATTRIBUTE_SET1_DATA                  138
#define X509_F_X509_CHECK_PRIVATE_KEY                    128
#define X509_F_X509_CRL_PRINT_FP                         147
#define X509_F_X509_EXTENSION_CREATE_BY_NID              108
#define X509_F_X509_EXTENSION_CREATE_BY_OBJ              109
#define X509_F_X509_GET_PUBKEY_PARAMETERS                110
#define X509_F_X509_LOAD_CERT_CRL_FILE                   132
#define X509_F_X509_LOAD_CERT_FILE                       111
#define X509_F_X509_LOAD_CRL_FILE                        112
#define X509_F_X509_NAME_ADD_ENTRY                       113
#define X509_F_X509_NAME_ENTRY_CREATE_BY_NID             114
#define X509_F_X509_NAME_ENTRY_CREATE_BY_TXT             131
#define X509_F_X509_NAME_ENTRY_SET_OBJECT                115
#define X509_F_X509_NAME_ONELINE                         116
#define X509_F_X509_NAME_PRINT                           117
#define X509_F_X509_PRINT_EX_FP                          118
#define X509_F_X509_PUBKEY_GET                           119
#define X509_F_X509_PUBKEY_SET                           120
#define X509_F_X509_REQ_CHECK_PRIVATE_KEY                144
#define X509_F_X509_REQ_PRINT_EX                         121
#define X509_F_X509_REQ_PRINT_FP                         122
#define X509_F_X509_REQ_TO_X509                          123
#define X509_F_X509_STORE_ADD_CERT                       124
#define X509_F_X509_STORE_ADD_CRL                        125
#define X509_F_X509_STORE_CTX_GET1_ISSUER                146
#define X509_F_X509_STORE_CTX_INIT                       143
#define X509_F_X509_STORE_CTX_NEW                        142
#define X509_F_X509_STORE_CTX_PURPOSE_INHERIT            134
#define X509_F_X509_TO_X509_REQ                          126
#define X509_F_X509_TRUST_ADD                            133
#define X509_F_X509_TRUST_SET                            141
#define X509_F_X509_VERIFY_CERT                          127

/* Reason codes. */
#define X509_R_BAD_X509_FILETYPE                         100
#define X509_R_BASE64_DECODE_ERROR                       118
#define X509_R_CANT_CHECK_DH_KEY                         114
#define X509_R_CERT_ALREADY_IN_HASH_TABLE                101
#define X509_R_ERR_ASN1_LIB                              102
#define X509_R_INVALID_DIRECTORY                         113
#define X509_R_INVALID_FIELD_NAME                        119
#define X509_R_INVALID_POLICY_EXTENSION                  201
#define X509_R_INVALID_TRUST                             123
#define X509_R_INVALID_VERSION                           137
#define X509_R_KEY_TYPE_MISMATCH                         115
#define X509_R_KEY_VALUES_MISMATCH                       116
#define X509_R_LOADING_CERT_DIR                          103
#define X509_R_LOADING_DEFAULTS                          104
#define X509_R_METHOD_NOT_SUPPORTED                      124
#define X509_R_NO_CERTIFICATE_OR_CRL_FOUND               136
#define X509_R_NO_CERT_SET_FOR_US_TO_VERIFY              105
#define X509_R_PUBLIC_KEY_DECODE_ERROR                   125
#define X509_R_PUBLIC_KEY_ENCODE_ERROR                   126
#define X509_R_SHOULD_RETRY                              106
#define X509_R_UNABLE_TO_FIND_PARAMETERS_IN_CHAIN        107
#define X509_R_UNABLE_TO_GET_CERTS_PUBLIC_KEY            108
#define X509_R_UNKNOWN_KEY_TYPE                          117
#define X509_R_UNKNOWN_NID                               109
#define X509_R_UNKNOWN_PURPOSE_ID                        121
#define X509_R_UNKNOWN_TRUST_ID                          120
#define X509_R_UNSUPPORTED_ALGORITHM                     111
#define X509_R_WRONG_LOOKUP_TYPE                         112
#define X509_R_WRONG_TYPE                                122

#ifdef  __cplusplus
}
#endif
#endif