try { 
var binding = process.binding('crypto'); 
var SecureContext = binding.SecureContext; 
var Hmac = binding.Hmac; 
var Hash = _AN_Read_hash('Hash', binding); 
var Cipher = binding.Cipher; 
var Decipher = binding.Decipher; 
var Sign = binding.Sign; 
var Verify = binding.Verify; 
var crypto = true ; 
} 
catch (e) { 
var crypto = false ; 
} 
function Credentials(secureProtocol){ 
if (!(this instanceof Credentials)) { 
return new Credentials(secureProtocol); 
} 
if (!crypto) { 
throw new Error('node.js not compiled with openssl crypto support.')
} 
this.context = new SecureContext(); 
if (secureProtocol) { 
_AN_Call_init('init', this.context, secureProtocol); 
} 
 else { 
_AN_Call_init('init', this.context); 
} 
} 
exports.Credentials = Credentials; 
exports.createCredentials = function (options){ 
if (!options) options = { 
}
; 
var c = new Credentials(options.secureProtocol); 
if (options.key) c.context.setKey(options.key); 
if (options.cert) c.context.setCert(options.cert); 
if (options.ca) { 
if (Array.isArray(options.ca)) { 
for (var i = 0, len = _AN_Read_length('length', options.ca); 
i < len; i++ ){ 
c.context.addCACert(options.ca[i]); 
} 
} 
 else { 
c.context.addCACert(options.ca); 
} 
} 
 else { 
c.context.addRootCerts(); 
} 
return c; 
} 
; 
_AN_Write_hash('Hash', exports, false , Hash); 
exports.createHash = function (hash){ 
return new Hash(hash); 
} 
; 
exports.Hmac = Hmac; 
exports.createHmac = function (hmac, key){ 
return _AN_Call_init('init', (new Hmac()), hmac, key); 
} 
; 
exports.Cipher = Cipher; 
exports.createCipher = function (cipher, key){ 
return _AN_Call_init('init', (new Cipher()), cipher, key); 
} 
; 
exports.createCipheriv = function (cipher, key, iv){ 
return (new Cipher()).initiv(cipher, key, iv); 
} 
; 
exports.Decipher = Decipher; 
exports.createDecipher = function (cipher, key){ 
return _AN_Call_init('init', (new Decipher()), cipher, key); 
} 
; 
exports.createDecipheriv = function (cipher, key, iv){ 
return (new Decipher()).initiv(cipher, key, iv); 
} 
; 
exports.Sign = Sign; 
exports.createSign = function (algorithm){ 
return _AN_Call_init('init', (new Sign()), algorithm); 
} 
; 
exports.Verify = Verify; 
exports.createVerify = function (algorithm){ 
return _AN_Call_init('init', (new Verify()), algorithm); 
} 
;