/* crypto/x509/x509.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.]
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * ECDH support in OpenSSL originally developed by
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

module deimos.openssl.x509;

import deimos.openssl._d_util;

import core.stdc.time;
import deimos.openssl.x509v3; // Needed for GENERAL_NAME.

public import deimos.openssl.e_os2;
public import deimos.openssl.symhacks;
version(OPENSSL_NO_BUFFER) {} else {
public import deimos.openssl.buffer;
}
version(OPENSSL_NO_EVP) {} else {
public import deimos.openssl.evp;
}
version(OPENSSL_NO_BIO) {} else {
public import deimos.openssl.bio;
}
public import deimos.openssl.stack;
public import deimos.openssl.asn1;
public import deimos.openssl.safestack;

version(OPENSSL_NO_EC) {} else {
public import deimos.openssl.ec;
}

version(OPENSSL_NO_ECDSA) {} else {
public import deimos.openssl.ecdsa;
}

version(OPENSSL_NO_ECDH) {} else {
public import deimos.openssl.ecdh;
}

version(OPENSSL_NO_DEPRECATED) {} else {
version(OPENSSL_NO_RSA) {} else {
public import deimos.openssl.rsa;
}
version(OPENSSL_NO_DSA) {} else {
public import deimos.openssl.dsa;
}
version(OPENSSL_NO_DH) {} else {
public import deimos.openssl.dh;
}
}

version(OPENSSL_NO_SHA) {} else {
public import deimos.openssl.sha;
}
public import deimos.openssl.ossl_typ;

extern (C):
nothrow:

//#ifdef OPENSSL_SYS_WIN32
///* Under Win32 these are defined in wincrypt.h */
//#undef X509_NAME
//#undef X509_CERT_PAIR
//#undef X509_EXTENSIONS
//#endif

enum X509_FILETYPE_PEM = 1;
enum X509_FILETYPE_ASN1 = 2;
enum X509_FILETYPE_DEFAULT = 3;

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

struct X509_objects_st {
	int nid;
	ExternC!(int function()) a2i;
	ExternC!(int function()) i2a;
	}
alias X509_objects_st X509_OBJECTS;

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

mixin DECLARE_ASN1_SET_OF!(X509_ALGOR);

alias STACK_OF!(X509_ALGOR) X509_ALGORS;

struct X509_val_st {
	ASN1_TIME* notBefore;
	ASN1_TIME* notAfter;
	}
alias X509_val_st X509_VAL;

struct X509_pubkey_st
	{
	X509_ALGOR* algor;
	ASN1_BIT_STRING* public_key;
	EVP_PKEY* pkey;
	};

struct X509_sig_st {
	X509_ALGOR* algor;
	ASN1_OCTET_STRING* digest;
	}
alias X509_sig_st X509_SIG;

struct X509_name_entry_st {
	ASN1_OBJECT* object;
	ASN1_STRING* value;
	int set;
	int size; 	/* temp variable */
	}
alias X509_name_entry_st X509_NAME_ENTRY;

/+mixin DECLARE_STACK_OF!(X509_NAME_ENTRY);+/
mixin DECLARE_ASN1_SET_OF!(X509_NAME_ENTRY);

/* we always keep X509_NAMEs in 2 forms. */
struct X509_name_st
	{
	STACK_OF!(X509_NAME_ENTRY) *entries;
	int modified;	/* true if 'bytes' needs to be built */
version(OPENSSL_NO_BUFFER) {
	char* bytes;
} else {
	BUF_MEM* bytes;
}
/*	c_ulong hash; Keep the hash around for lookups */
	ubyte* canon_enc;
	int canon_enclen;
	} /* X509_NAME */;

/+mixin DECLARE_STACK_OF!(X509_NAME);+/

enum X509_EX_V_NETSCAPE_HACK = 0x8000;
enum X509_EX_V_INIT = 0x0001;
struct X509_extension_st {
	ASN1_OBJECT* object;
	ASN1_BOOLEAN critical;
	ASN1_OCTET_STRING* value;
	}
alias X509_extension_st X509_EXTENSION;

alias STACK_OF!(X509_EXTENSION) X509_EXTENSIONS;

/+mixin DECLARE_STACK_OF!(X509_EXTENSION);+/
mixin DECLARE_ASN1_SET_OF!(X509_EXTENSION);

/* a sequence of these are used */
struct x509_attributes_st
	{
	ASN1_OBJECT* object;
	int single; /* 0 for a set, 1 for a single item (which is wrong) */
	union value_ {
		char* ptr;
/* 0 */		STACK_OF!(ASN1_TYPE) *set;
/* 1 */		ASN1_TYPE* single;
		}
	value_ value;
	}
alias x509_attributes_st X509_ATTRIBUTE;

/+mixin DECLARE_STACK_OF!(X509_ATTRIBUTE);+/
mixin DECLARE_ASN1_SET_OF!(X509_ATTRIBUTE);


struct X509_req_info_st {
	ASN1_ENCODING enc;
	ASN1_INTEGER* version_;
	X509_NAME* subject;
	X509_PUBKEY* pubkey;
	/* d=2 hl=2 l=  0 cons: cont: 00 */
	STACK_OF!(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
	}
alias X509_req_info_st X509_REQ_INFO;

struct X509_req_st {
	X509_REQ_INFO* req_info;
	X509_ALGOR* sig_alg;
	ASN1_BIT_STRING* signature;
	int references;
	}
alias X509_req_st X509_REQ;

struct x509_cinf_st {
	ASN1_INTEGER* version_;		/* [ 0 ] default of v1 */
	ASN1_INTEGER* serialNumber;
	X509_ALGOR* signature;
	X509_NAME* issuer;
	X509_VAL* validity;
	X509_NAME* subject;
	X509_PUBKEY* key;
	ASN1_BIT_STRING* issuerUID;		/* [ 1 ] optional in v2 */
	ASN1_BIT_STRING* subjectUID;		/* [ 2 ] optional in v2 */
	STACK_OF!(X509_EXTENSION) *extensions;	/* [ 3 ] optional in v3 */
	ASN1_ENCODING enc;
	}
alias x509_cinf_st X509_CINF;

/* This stuff is certificate "auxiliary info"
 * it contains details which are useful in certificate
 * stores and databases. When used this is tagged onto
 * the end of the certificate itself
 */

struct x509_cert_aux_st {
	STACK_OF!(ASN1_OBJECT) *trust;		/* trusted uses */
	STACK_OF!(ASN1_OBJECT) *reject;		/* rejected uses */
	ASN1_UTF8STRING* alias_;			/* "friendly name" */
	ASN1_OCTET_STRING* keyid;		/* key id of private key */
	STACK_OF!(X509_ALGOR) *other;		/* other unspecified info */
	}
alias x509_cert_aux_st X509_CERT_AUX;

struct x509_st
	{
	X509_CINF* cert_info;
	X509_ALGOR* sig_alg;
	ASN1_BIT_STRING* signature;
	int valid;
	int references;
	char* name;
	CRYPTO_EX_DATA ex_data;
	/* These contain copies of various extension values */
	c_long ex_pathlen;
	c_long ex_pcpathlen;
	c_ulong ex_flags;
	c_ulong ex_kusage;
	c_ulong ex_xkusage;
	c_ulong ex_nscert;
	ASN1_OCTET_STRING* skid;
	AUTHORITY_KEYID* akid;
	X509_POLICY_CACHE* policy_cache;
	STACK_OF!(DIST_POINT) *crldp;
	STACK_OF!(GENERAL_NAME) *altname;
	NAME_CONSTRAINTS* nc;
version(OPENSSL_NO_RFC3779) {} else {
	STACK_OF!(IPAddressFamily) *rfc3779_addr;
	ASIdentifiers_st* rfc3779_asid;
}
version(OPENSSL_NO_SHA) {} else {
	ubyte[SHA_DIGEST_LENGTH] sha1_hash;
}
	X509_CERT_AUX* aux;
	} /* X509 */;

/+mixin DECLARE_STACK_OF!(X509);+/
mixin DECLARE_ASN1_SET_OF!(X509);

/* This is used for a table of trust checking functions */

struct x509_trust_st {
	int trust;
	int flags;
	ExternC!(int function(x509_trust_st*, X509*, int)) check_trust;
	char* name;
	int arg1;
	void* arg2;
}
alias x509_trust_st X509_TRUST;

/+mixin DECLARE_STACK_OF!(X509_TRUST);+/

struct x509_cert_pair_st {
	X509* forward;
	X509* reverse;
}
alias x509_cert_pair_st X509_CERT_PAIR;

/* standard trust ids */

enum X509_TRUST_DEFAULT = -1;	/* Only valid in purpose settings */

enum X509_TRUST_COMPAT = 1;
enum X509_TRUST_SSL_CLIENT = 2;
enum X509_TRUST_SSL_SERVER = 3;
enum X509_TRUST_EMAIL = 4;
enum X509_TRUST_OBJECT_SIGN = 5;
enum X509_TRUST_OCSP_SIGN = 6;
enum X509_TRUST_OCSP_REQUEST = 7;
enum X509_TRUST_TSA = 8;

/* Keep these up to date! */
enum X509_TRUST_MIN = 1;
enum X509_TRUST_MAX = 8;


/* trust_flags values */
enum X509_TRUST_DYNAMIC = 1;
enum X509_TRUST_DYNAMIC_NAME = 2;

/* check_trust return codes */

enum X509_TRUST_TRUSTED = 1;
enum X509_TRUST_REJECTED = 2;
enum X509_TRUST_UNTRUSTED = 3;

/* Flags for X509_print_ex() */

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

/* Flags specific to X509_NAME_print_ex() */

/* The field separator information */

enum XN_FLAG_SEP_MASK = (0xf << 16);

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

enum XN_FLAG_DN_REV = (1 << 20);	/* Reverse DN order */

/* How the field name is shown */

enum XN_FLAG_FN_MASK = (0x3 << 21);

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

enum XN_FLAG_SPC_EQ = (1 << 23);	/* Put spaces round '=' */

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

enum XN_FLAG_DUMP_UNKNOWN_FIELDS = (1 << 24);

enum XN_FLAG_FN_ALIGN = (1 << 25);	/* Align field names to 20 characters */

/* Complete set of RFC2253 flags */

enum 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 */

enum 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 */

enum 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);

struct x509_revoked_st
	{
	ASN1_INTEGER* serialNumber;
	ASN1_TIME* revocationDate;
	STACK_OF!(X509_EXTENSION) /* optional */ *extensions;
	/* Set up if indirect CRL */
	STACK_OF!(GENERAL_NAME) *issuer;
	/* Revocation reason */
	int reason;
	int sequence; /* load sequence */
	};

/+mixin DECLARE_STACK_OF!(X509_REVOKED);+/
mixin DECLARE_ASN1_SET_OF!(X509_REVOKED);

struct X509_crl_info_st {
	ASN1_INTEGER* version_;
	X509_ALGOR* sig_alg;
	X509_NAME* issuer;
	ASN1_TIME* lastUpdate;
	ASN1_TIME* nextUpdate;
	STACK_OF!(X509_REVOKED) *revoked;
	STACK_OF!(X509_EXTENSION) /* [0] */ *extensions;
	ASN1_ENCODING enc;
	}
alias X509_crl_info_st X509_CRL_INFO;

struct X509_crl_st
	{
	/* actual signature */
	X509_CRL_INFO* crl;
	X509_ALGOR* sig_alg;
	ASN1_BIT_STRING* signature;
	int references;
	int flags;
	/* Copies of various extensions */
	AUTHORITY_KEYID* akid;
	ISSUING_DIST_POINT* idp;
	/* Convenient breakdown of IDP */
	int idp_flags;
	int idp_reasons;
	/* CRL and base CRL numbers for delta processing */
	ASN1_INTEGER* crl_number;
	ASN1_INTEGER* base_crl_number;
version(OPENSSL_NO_SHA) {} else {
	ubyte[SHA_DIGEST_LENGTH] sha1_hash;
}
	STACK_OF!(GENERAL_NAMES) *issuers;
	const(X509_CRL_METHOD)* meth;
	void* meth_data;
	} /* X509_CRL */;

/+mixin DECLARE_STACK_OF!(X509_CRL);+/
mixin DECLARE_ASN1_SET_OF!(X509_CRL);

struct private_key_st {
	int version_;
	/* The PKCS#8 data types */
	X509_ALGOR* enc_algor;
	ASN1_OCTET_STRING* enc_pkey;	/* encrypted pub key */

	/* When decrypted, the following will not be NULL */
	EVP_PKEY* dec_pkey;

	/* used to encrypt and decrypt */
	int key_length;
	char* key_data;
	int key_free;	/* true if we should auto free key_data */

	/* expanded version of 'enc_algor' */
	EVP_CIPHER_INFO cipher;

	int references;
	}
alias private_key_st X509_PKEY;

version(OPENSSL_NO_EVP) {} else {
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;
	}
alias X509_info_st X509_INFO;

/+mixin DECLARE_STACK_OF!(X509_INFO);+/
}

/* 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
 */
struct Netscape_spkac_st {
	X509_PUBKEY* pubkey;
	ASN1_IA5STRING* challenge;	/* challenge sent in atlas >= PR2 */
	}
alias Netscape_spkac_st NETSCAPE_SPKAC;

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

/* Netscape certificate sequence structure */
struct Netscape_certificate_sequence {
	ASN1_OBJECT* type;
	STACK_OF!(X509) *certs;
	}
alias Netscape_certificate_sequence NETSCAPE_CERT_SEQUENCE;

/* Unused (and iv length is wrong)
struct CBCParameter_st {
	ubyte[8] iv;
	}
alias CBCParameter_st CBC_PARAM;
*/

/* Password based encryption structure */

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

/* Password based encryption V2 structures */

struct PBE2PARAM_st {
X509_ALGOR* keyfunc;
X509_ALGOR* encryption;
}
alias PBE2PARAM_st PBE2PARAM;

struct PBKDF2PARAM_st {
ASN1_TYPE* salt;	/* Usually OCTET STRING but could be anything */
ASN1_INTEGER* iter;
ASN1_INTEGER* keylength;
X509_ALGOR* prf;
}
alias PBKDF2PARAM_st PBKDF2PARAM;


/* PKCS#8 private key info structure */

struct pkcs8_priv_key_info_st
        {
        int broken;     /* Flag for various broken formats */
enum PKCS8_OK = 0;
enum PKCS8_NO_OCTET = 1;
enum PKCS8_EMBEDDED_PARAM = 2;
enum PKCS8_NS_DB = 3;
enum PKCS8_NEG_PRIVKEY = 4;
        ASN1_INTEGER* version_;
        X509_ALGOR* pkeyalg;
        ASN1_TYPE* pkey; /* Should be OCTET STRING but some are broken */
        STACK_OF!(X509_ATTRIBUTE) *attributes;
        };

public import deimos.openssl.x509_vfy;
public import deimos.openssl.pkcs7;

extern (C):
nothrow:

enum X509_EXT_PACK_UNKNOWN = 1;
enum X509_EXT_PACK_STRING = 2;

auto X509_get_version()(x509_st* x) { return ASN1_INTEGER_get(x.cert_info.version_); }
/* auto	X509_get_serialNumber()(x509_st* x) { return (x.cert_info.serialNumber); } */
auto X509_get_notBefore()(x509_st* x) { return (x.cert_info.validity.notBefore); }
auto X509_get_notAfter()(x509_st* x) { return (x.cert_info.validity.notAfter); }
alias X509_get_pubkey X509_extract_key;
auto X509_REQ_get_version()(x509_st* x) { return ASN1_INTEGER_get(x.req_info.version_); }
auto X509_REQ_get_subject_name()(x509_st* x) { return (x.req_info.subject); }
alias X509_REQ_get_pubkey X509_REQ_extract_key;
alias X509_NAME_cmp X509_name_cmp;
auto X509_get_signature_type()(x509_st* x) { return EVP_PKEY_type(OBJ_obj2nid(x.sig_alg.algorithm)); }

auto X509_CRL_get_version()(x509_st* x) { return ASN1_INTEGER_get(x.crl.version_); }
auto X509_CRL_get_lastUpdate()(x509_st* x) { return (x.crl.lastUpdate); }
auto X509_CRL_get_nextUpdate()(x509_st* x) { return (x.crl.nextUpdate); }
auto X509_CRL_get_issuer()(x509_st* x) { return (x.crl.issuer); }
auto X509_CRL_get_REVOKED()(x509_st* x) { return (x.crl.revoked); }

void X509_CRL_set_default_method(const(X509_CRL_METHOD)* meth);
X509_CRL_METHOD* X509_CRL_METHOD_new(
	ExternC!(int function(X509_CRL* crl)) crl_init,
	ExternC!(int function(X509_CRL* crl)) crl_free,
	ExternC!(int function(X509_CRL* crl, X509_REVOKED** ret,
				ASN1_INTEGER* ser, X509_NAME* issuer)) crl_lookup,
	ExternC!(int function(X509_CRL* crl, EVP_PKEY* pk)) crl_verify);
void X509_CRL_METHOD_free(X509_CRL_METHOD* m);

void X509_CRL_set_meth_data(X509_CRL* crl, void* dat);
void* X509_CRL_get_meth_data(X509_CRL* crl);

/* This one is only used so that a binary form can output, as in
 * i2d_X509_NAME(X509_get_X509_PUBKEY(x),&buf) */
auto X509_get_X509_PUBKEY()(x509_st* x) { return x.cert_info.key; }


const(char)* X509_verify_cert_error_string(c_long n);

version(OPENSSL_NO_EVP) {} else {
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,X509_ALGOR* alg, 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,
		ubyte* md, uint* len);
int X509_digest(const(X509)* data,const(EVP_MD)* type,
		ubyte* md, uint* len);
int X509_CRL_digest(const(X509_CRL)* data,const(EVP_MD)* type,
		ubyte* md, uint* len);
int X509_REQ_digest(const(X509_REQ)* data,const(EVP_MD)* type,
		ubyte* md, uint* len);
int X509_NAME_digest(const(X509_NAME)* data,const(EVP_MD)* type,
		ubyte* md, uint* len);
}

version(OPENSSL_NO_FP_API) {} else {
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);
version(OPENSSL_NO_RSA) {} else {
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);
}
version(OPENSSL_NO_DSA) {} else {
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);
}
version(OPENSSL_NO_EC) {} else {
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);
}
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);
}

version(OPENSSL_NO_BIO) {} else {
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);
version(OPENSSL_NO_RSA) {} else {
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);
}
version(OPENSSL_NO_DSA) {} else {
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);
}
version(OPENSSL_NO_EC) {} else {
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);
}
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);
}

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(ASN1_OBJECT** paobj, int* pptype, void** ppval,
						X509_ALGOR* algor);
void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md);

X509_NAME* X509_NAME_dup(X509_NAME* xn);
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, c_long adj, time_t* t);
ASN1_TIME* 	X509_time_adj_ex(ASN1_TIME* s,
				int offset_day, c_long offset_sec, time_t* t);
ASN1_TIME* 	X509_gmtime_adj(ASN1_TIME* s, c_long adj);

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

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);

mixin(DECLARE_ASN1_FUNCTIONS!"X509_ALGOR");
mixin(DECLARE_ASN1_ENCODE_FUNCTIONS!("X509_ALGORS", "X509_ALGORS", "X509_ALGORS"));
mixin(DECLARE_ASN1_FUNCTIONS!"X509_VAL");

mixin(DECLARE_ASN1_FUNCTIONS!"X509_PUBKEY");

int		X509_PUBKEY_set(X509_PUBKEY** x, EVP_PKEY* pkey);
EVP_PKEY* 	X509_PUBKEY_get(X509_PUBKEY* key);
int		X509_get_pubkey_parameters(EVP_PKEY* pkey,
					   STACK_OF!(X509) *chain);
int		i2d_PUBKEY(EVP_PKEY* a,ubyte** pp);
EVP_PKEY* 	d2i_PUBKEY(EVP_PKEY** a,const(ubyte)** pp,
			c_long length);
version(OPENSSL_NO_RSA) {} else {
int		i2d_RSA_PUBKEY(RSA* a,ubyte** pp);
RSA* 		d2i_RSA_PUBKEY(RSA** a,const(ubyte)** pp,
			c_long length);
}
version(OPENSSL_NO_DSA) {} else {
int		i2d_DSA_PUBKEY(DSA* a,ubyte** pp);
DSA* 		d2i_DSA_PUBKEY(DSA** a,const(ubyte)** pp,
			c_long length);
}
version(OPENSSL_NO_EC) {} else {
int		i2d_EC_PUBKEY(EC_KEY* a, ubyte** pp);
EC_KEY* d2i_EC_PUBKEY(EC_KEY** a, const(ubyte)** pp,
			c_long length);
}

mixin(DECLARE_ASN1_FUNCTIONS!"X509_SIG");
mixin(DECLARE_ASN1_FUNCTIONS!"X509_REQ_INFO");
mixin(DECLARE_ASN1_FUNCTIONS!"X509_REQ");

mixin(DECLARE_ASN1_FUNCTIONS!"X509_ATTRIBUTE");
X509_ATTRIBUTE* X509_ATTRIBUTE_create(int nid, int atrtype, void* value);

mixin(DECLARE_ASN1_FUNCTIONS!"X509_EXTENSION");
mixin(DECLARE_ASN1_ENCODE_FUNCTIONS!("X509_EXTENSIONS", "X509_EXTENSIONS", "X509_EXTENSIONS"));

mixin(DECLARE_ASN1_FUNCTIONS!"X509_NAME_ENTRY");

mixin(DECLARE_ASN1_FUNCTIONS!"X509_NAME");

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

mixin(DECLARE_ASN1_FUNCTIONS!"X509_CINF");

mixin(DECLARE_ASN1_FUNCTIONS!"X509");
mixin(DECLARE_ASN1_FUNCTIONS!"X509_CERT_AUX");

mixin(DECLARE_ASN1_FUNCTIONS!"X509_CERT_PAIR");

int X509_get_ex_new_index(c_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,ubyte** pp);
X509* 		d2i_X509_AUX(X509** a,const(ubyte)** pp,c_long length);

int X509_alias_set1(X509* x, ubyte* name, int len);
int X509_keyid_set1(X509* x, ubyte* id, int len);
ubyte* X509_alias_get0(X509* x, int* len);
ubyte* X509_keyid_get0(X509* x, int* len);
int function(int, X509*, int) X509_TRUST_set_default(ExternC!(int function(int , X509*, int)) trust);
int X509_TRUST_set(int* t, int trust);
int X509_add1_trust_object(X509* x, ASN1_OBJECT* obj);
int X509_add1_reject_object(X509* x, ASN1_OBJECT* obj);
void X509_trust_clear(X509* x);
void X509_reject_clear(X509* x);

mixin(DECLARE_ASN1_FUNCTIONS!"X509_REVOKED");
mixin(DECLARE_ASN1_FUNCTIONS!"X509_CRL_INFO");
mixin(DECLARE_ASN1_FUNCTIONS!"X509_CRL");

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);

X509_PKEY* 	X509_PKEY_new();
void		X509_PKEY_free(X509_PKEY* a);
int		i2d_X509_PKEY(X509_PKEY* a,ubyte** pp);
X509_PKEY* 	d2i_X509_PKEY(X509_PKEY** a,const(ubyte)** pp,c_long length);

mixin(DECLARE_ASN1_FUNCTIONS!"NETSCAPE_SPKI");
mixin(DECLARE_ASN1_FUNCTIONS!"NETSCAPE_SPKAC");
mixin(DECLARE_ASN1_FUNCTIONS!"NETSCAPE_CERT_SEQUENCE");

version(OPENSSL_NO_EVP) {} else {
X509_INFO* 	X509_INFO_new();
void		X509_INFO_free(X509_INFO* a);
char* 		X509_NAME_oneline(X509_NAME* a,char* buf,int size);

int ASN1_verify(i2d_of_void* i2d, X509_ALGOR* algor1,
		ASN1_BIT_STRING* signature,char* data,EVP_PKEY* pkey);

int ASN1_digest(i2d_of_void* i2d,const(EVP_MD)* type,char* data,
		ubyte* md,uint* len);

int ASN1_sign(i2d_of_void* i2d, X509_ALGOR* algor1,
	      X509_ALGOR* algor2, ASN1_BIT_STRING* signature,
	      char* data,EVP_PKEY* pkey, const(EVP_MD)* type);

int ASN1_item_digest(const(ASN1_ITEM)* it,const(EVP_MD)* type,void* data,
	ubyte* md,uint* 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);
}

int 		X509_set_version(X509* x,c_long version_);
int 		X509_set_serialNumber(X509* x, ASN1_INTEGER* serial);
ASN1_INTEGER* 	X509_get_serialNumber(X509* x);
int 		X509_set_issuer_name(X509* x, X509_NAME* name);
X509_NAME* 	X509_get_issuer_name(X509* a);
int 		X509_set_subject_name(X509* x, X509_NAME* name);
X509_NAME* 	X509_get_subject_name(X509* a);
int 		X509_set_notBefore(X509* x, const(ASN1_TIME)* tm);
int 		X509_set_notAfter(X509* x, const(ASN1_TIME)* tm);
int 		X509_set_pubkey(X509* x, EVP_PKEY* pkey);
EVP_PKEY* 	X509_get_pubkey(X509* x);
ASN1_BIT_STRING* X509_get0_pubkey_bitstr(const(X509)* x);
int		X509_certificate_type(X509* x,EVP_PKEY* pubkey /* optional */);

int		X509_REQ_set_version(X509_REQ* x,c_long version_);
int		X509_REQ_set_subject_name(X509_REQ* req,X509_NAME* name);
int		X509_REQ_set_pubkey(X509_REQ* x, EVP_PKEY* pkey);
EVP_PKEY* 	X509_REQ_get_pubkey(X509_REQ* req);
int		X509_REQ_extension_nid(int nid);
int* 		X509_REQ_get_extension_nids();
void		X509_REQ_set_extension_nids(int* nids);
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, 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(ubyte)* bytes, int len);
int X509_REQ_add1_attr_by_NID(X509_REQ* req,
			int nid, int type,
			const(ubyte)* bytes, int len);
int X509_REQ_add1_attr_by_txt(X509_REQ* req,
			const(char)* attrname, int type,
			const(ubyte)* bytes, int len);

int X509_CRL_set_version(X509_CRL* x, c_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_set_nextUpdate(X509_CRL* x, const(ASN1_TIME)* tm);
int X509_CRL_sort(X509_CRL* crl);

int X509_REVOKED_set_serialNumber(X509_REVOKED* x, ASN1_INTEGER* serial);
int X509_REVOKED_set_revocationDate(X509_REVOKED* r, ASN1_TIME* tm);

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

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

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

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

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

version(OPENSSL_NO_MD5) {} else {
c_ulong	X509_issuer_name_hash_old(X509* a);
c_ulong	X509_subject_name_hash_old(X509* x);
}

int		X509_cmp(const(X509)* a, const(X509)* b);
int		X509_NAME_cmp(const(X509_NAME)* a, const(X509_NAME)* b);
c_ulong	X509_NAME_hash(X509_NAME* x);
c_ulong	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);
version(OPENSSL_NO_FP_API) {} else {
int		X509_print_ex_fp(FILE* bp,X509* x, c_ulong nmflag, c_ulong 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, X509_NAME* nm, int indent, c_ulong flags);
}

version(OPENSSL_NO_BIO) {} else {
int		X509_NAME_print(BIO* bp, X509_NAME* name, int obase);
int X509_NAME_print_ex(BIO* out_, X509_NAME* nm, int indent, c_ulong flags);
int		X509_print_ex(BIO* bp,X509* x, c_ulong nmflag, c_ulong cflag);
int		X509_print(BIO* bp,X509* x);
int		X509_ocspid_print(BIO* bp,X509* x);
int		X509_CERT_AUX_print(BIO* bp,X509_CERT_AUX* x, int indent);
int		X509_CRL_print(BIO* bp,X509_CRL* x);
int		X509_REQ_print_ex(BIO* bp, X509_REQ* x, c_ulong nmflag, c_ulong cflag);
int		X509_REQ_print(BIO* bp,X509_REQ* req);
}

int 		X509_NAME_entry_count(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, ASN1_OBJECT* obj,
			char* buf,int len);

/* NOTE: you should be passsing -1, not 0 as lastpos.  The functions that use
 * lastpos, search after that position on. */
int 		X509_NAME_get_index_by_NID(X509_NAME* name,int nid,int lastpos);
int 		X509_NAME_get_index_by_OBJ(X509_NAME* name,ASN1_OBJECT* obj,
			int lastpos);
X509_NAME_ENTRY* X509_NAME_get_entry(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,X509_NAME_ENTRY* ne,
			int loc, int set);
int X509_NAME_add_entry_by_OBJ(X509_NAME* name, ASN1_OBJECT* obj, int type,
			ubyte* bytes, int len, int loc, int set);
int X509_NAME_add_entry_by_NID(X509_NAME* name, int nid, int type,
			ubyte* 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(ubyte)* bytes, int len);
X509_NAME_ENTRY* X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY** ne, int nid,
			int type,ubyte* bytes, int len);
int X509_NAME_add_entry_by_txt(X509_NAME* name, const(char)* field, int type,
			const(ubyte)* bytes, int len, int loc, int set);
X509_NAME_ENTRY* X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY** ne,
			ASN1_OBJECT* obj, int type,const(ubyte)* bytes,
			int len);
int 		X509_NAME_ENTRY_set_object(X509_NAME_ENTRY* ne,
			ASN1_OBJECT* obj);
int 		X509_NAME_ENTRY_set_data(X509_NAME_ENTRY* ne, int type,
			const(ubyte)* bytes, int len);
ASN1_OBJECT* 	X509_NAME_ENTRY_get_object(X509_NAME_ENTRY* ne);
ASN1_STRING* 	X509_NAME_ENTRY_get_data(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,
				      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(X509* x);
int		X509_get_ext_by_NID(X509* x, int nid, int lastpos);
int		X509_get_ext_by_OBJ(X509* x,ASN1_OBJECT* obj,int lastpos);
int		X509_get_ext_by_critical(X509* x, int crit, int lastpos);
X509_EXTENSION* X509_get_ext(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(X509* x, int nid, int* crit, int* idx);
int		X509_add1_ext_i2d(X509* x, int nid, void* value, int crit,
							c_ulong flags);

int		X509_CRL_get_ext_count(X509_CRL* x);
int		X509_CRL_get_ext_by_NID(X509_CRL* x, int nid, int lastpos);
int		X509_CRL_get_ext_by_OBJ(X509_CRL* x,ASN1_OBJECT* obj,int lastpos);
int		X509_CRL_get_ext_by_critical(X509_CRL* x, int crit, int lastpos);
X509_EXTENSION* X509_CRL_get_ext(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(X509_CRL* x, int nid, int* crit, int* idx);
int		X509_CRL_add1_ext_i2d(X509_CRL* x, int nid, void* value, int crit,
							c_ulong flags);

int		X509_REVOKED_get_ext_count(X509_REVOKED* x);
int		X509_REVOKED_get_ext_by_NID(X509_REVOKED* x, int nid, int lastpos);
int		X509_REVOKED_get_ext_by_OBJ(X509_REVOKED* x,ASN1_OBJECT* obj,int lastpos);
int		X509_REVOKED_get_ext_by_critical(X509_REVOKED* x, int crit, int lastpos);
X509_EXTENSION* X509_REVOKED_get_ext(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(X509_REVOKED* x, int nid, int* crit, int* idx);
int		X509_REVOKED_add1_ext_i2d(X509_REVOKED* x, int nid, void* value, int crit,
							c_ulong 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,
			ASN1_OBJECT* obj,int crit,ASN1_OCTET_STRING* data);
int		X509_EXTENSION_set_object(X509_EXTENSION* ex,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(X509_EXTENSION* ex);

int X509at_get_attr_count(const STACK_OF!(X509_ATTRIBUTE) *x);
int X509at_get_attr_by_NID(const STACK_OF!(X509_ATTRIBUTE) *x, int nid,
			  int lastpos);
int X509at_get_attr_by_OBJ(const STACK_OF!(X509_ATTRIBUTE) *sk, ASN1_OBJECT* obj,
			  int lastpos);
X509_ATTRIBUTE* X509at_get_attr(const STACK_OF!(X509_ATTRIBUTE) *x, int loc);
X509_ATTRIBUTE* X509at_delete_attr(STACK_OF!(X509_ATTRIBUTE) *x, int loc);
STACK_OF!(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF!(X509_ATTRIBUTE) **x,
					 X509_ATTRIBUTE* attr);
STACK_OF!(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF!(X509_ATTRIBUTE) **x,
			const(ASN1_OBJECT)* obj, int type,
			const(ubyte)* bytes, int len);
STACK_OF!(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF!(X509_ATTRIBUTE) **x,
			int nid, int type,
			const(ubyte)* bytes, int len);
STACK_OF!(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF!(X509_ATTRIBUTE) **x,
			const(char)* attrname, int type,
			const(ubyte)* bytes, int len);
void* X509at_get0_data_by_OBJ(STACK_OF!(X509_ATTRIBUTE) *x,
				ASN1_OBJECT* obj, int lastpos, int type);
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(ubyte)* 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(X509_ATTRIBUTE* attr);
ASN1_OBJECT* X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE* attr);
ASN1_TYPE* X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE* attr, int idx);

int EVP_PKEY_get_attr_count(const(EVP_PKEY)* key);
int EVP_PKEY_get_attr_by_NID(const(EVP_PKEY)* key, int nid,
			  int lastpos);
int EVP_PKEY_get_attr_by_OBJ(const(EVP_PKEY)* key, ASN1_OBJECT* obj,
			  int lastpos);
X509_ATTRIBUTE* EVP_PKEY_get_attr(const(EVP_PKEY)* key, int loc);
X509_ATTRIBUTE* EVP_PKEY_delete_attr(EVP_PKEY* key, int loc);
int EVP_PKEY_add1_attr(EVP_PKEY* key, X509_ATTRIBUTE* attr);
int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY* key,
			const(ASN1_OBJECT)* obj, int type,
			const(ubyte)* bytes, int len);
int EVP_PKEY_add1_attr_by_NID(EVP_PKEY* key,
			int nid, int type,
			const(ubyte)* bytes, int len);
int EVP_PKEY_add1_attr_by_txt(EVP_PKEY* key,
			const(char)* attrname, int type,
			const(ubyte)* bytes, int len);

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);

mixin(DECLARE_ASN1_FUNCTIONS!"PBEPARAM");
mixin(DECLARE_ASN1_FUNCTIONS!"PBE2PARAM");
mixin(DECLARE_ASN1_FUNCTIONS!"PBKDF2PARAM");

int PKCS5_pbe_set0_algor(X509_ALGOR* algor, int alg, int iter,
				const(ubyte)* salt, int saltlen);

X509_ALGOR* PKCS5_pbe_set(int alg, int iter,
				const(ubyte)* salt, int saltlen);
X509_ALGOR* PKCS5_pbe2_set(const(EVP_CIPHER)* cipher, int iter,
					 ubyte* salt, int saltlen);
X509_ALGOR* PKCS5_pbe2_set_iv(const(EVP_CIPHER)* cipher, int iter,
				 ubyte* salt, int saltlen,
				 ubyte* aiv, int prf_nid);

X509_ALGOR *PKCS5_pbkdf2_set(int iter, ubyte* salt, int saltlen,
				int prf_nid, int keylen);

/* PKCS#8 utilities */

mixin(DECLARE_ASN1_FUNCTIONS!"PKCS8_PRIV_KEY_INFO");

EVP_PKEY* EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO* p8);
PKCS8_PRIV_KEY_INFO* EVP_PKEY2PKCS8(EVP_PKEY* pkey);
PKCS8_PRIV_KEY_INFO* EVP_PKEY2PKCS8_broken(EVP_PKEY* pkey, int broken);
PKCS8_PRIV_KEY_INFO* PKCS8_set_broken(PKCS8_PRIV_KEY_INFO* p8, int broken);

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

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

int X509_check_trust(X509* x, int id, int flags);
int X509_TRUST_get_count();
X509_TRUST* X509_TRUST_get0(int idx);
int X509_TRUST_get_by_id(int id);
int X509_TRUST_add(int id, int flags, ExternC!(int function(X509_TRUST*, X509*, int)) ck,
					char* name, int arg1, void* arg2);
void X509_TRUST_cleanup();
int X509_TRUST_get_flags(X509_TRUST* xp);
char* X509_TRUST_get0_name(X509_TRUST* xp);
int X509_TRUST_get_trust(X509_TRUST* xp);

/* 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_X509_strings();

/* Error codes for the X509 functions. */

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

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