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/**
* CipherSuites
*
* An enumeration of cipher-suites available for TLS to use, along with
* their properties, and some convenience methods
* Copyright (c) 2007 Henri Torgemane
*
* See LICENSE.txt for full license information.
*/
package com.hurlant.crypto.tls {
import com.hurlant.crypto.hash.MD5;
import com.hurlant.crypto.hash.SHA1;
public class CipherSuites {
// only the lines marked "ok" are currently implemented.
// rfc 2246
public static const TLS_NULL_WITH_NULL_NULL:uint = 0x0000; // ok
public static const TLS_RSA_WITH_NULL_MD5:uint = 0x0001; // ok
public static const TLS_RSA_WITH_NULL_SHA:uint = 0x0002; // ok
public static const TLS_RSA_WITH_RC4_128_MD5:uint = 0x0004; // ok
public static const TLS_RSA_WITH_RC4_128_SHA:uint = 0x0005; // ok
public static const TLS_RSA_WITH_IDEA_CBC_SHA:uint = 0x0007;
public static const TLS_RSA_WITH_DES_CBC_SHA:uint = 0x0009; // ok
public static const TLS_RSA_WITH_3DES_EDE_CBC_SHA:uint = 0x000A; // ok
public static const TLS_DH_DSS_WITH_DES_CBC_SHA:uint = 0x000C;
public static const TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA:uint = 0x000D;
public static const TLS_DH_RSA_WITH_DES_CBC_SHA:uint = 0x000F;
public static const TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA:uint = 0x0010;
public static const TLS_DHE_DSS_WITH_DES_CBC_SHA:uint = 0x0012;
public static const TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA:uint = 0x0013;
public static const TLS_DHE_RSA_WITH_DES_CBC_SHA:uint = 0x0015;
public static const TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA:uint = 0x0016;
public static const TLS_DH_anon_WITH_RC4_128_MD5:uint = 0x0018;
public static const TLS_DH_anon_WITH_DES_CBC_SHA:uint = 0x001A;
public static const TLS_DH_anon_WITH_3DES_EDE_CBC_SHA:uint = 0x001B;
// rfc3268
public static const TLS_RSA_WITH_AES_128_CBC_SHA:uint = 0x002F; // ok
public static const TLS_DH_DSS_WITH_AES_128_CBC_SHA:uint = 0x0030;
public static const TLS_DH_RSA_WITH_AES_128_CBC_SHA:uint = 0x0031;
public static const TLS_DHE_DSS_WITH_AES_128_CBC_SHA:uint = 0x0032;
public static const TLS_DHE_RSA_WITH_AES_128_CBC_SHA:uint = 0x0033;
public static const TLS_DH_anon_WITH_AES_128_CBC_SHA:uint = 0x0034;
public static const TLS_RSA_WITH_AES_256_CBC_SHA:uint = 0x0035; // ok
public static const TLS_DH_DSS_WITH_AES_256_CBC_SHA:uint = 0x0036;
public static const TLS_DH_RSA_WITH_AES_256_CBC_SHA:uint = 0x0037;
public static const TLS_DHE_DSS_WITH_AES_256_CBC_SHA:uint = 0x0038;
public static const TLS_DHE_RSA_WITH_AES_256_CBC_SHA:uint = 0x0039;
public static const TLS_DH_anon_WITH_AES_256_CBC_SHA:uint = 0x003A;
private static var _props:Array;
init();
private static function init():void {
_props = [];
_props[TLS_NULL_WITH_NULL_NULL] = new CipherSuites(BulkCiphers.NULL, MACs.NULL, KeyExchanges.NULL);
_props[TLS_RSA_WITH_NULL_MD5] = new CipherSuites(BulkCiphers.NULL, MACs.MD5, KeyExchanges.RSA);
_props[TLS_RSA_WITH_NULL_SHA] = new CipherSuites(BulkCiphers.NULL, MACs.SHA1, KeyExchanges.RSA);
_props[TLS_RSA_WITH_RC4_128_MD5] = new CipherSuites(BulkCiphers.RC4_128, MACs.MD5, KeyExchanges.RSA);
_props[TLS_RSA_WITH_RC4_128_SHA] = new CipherSuites(BulkCiphers.RC4_128, MACs.SHA1, KeyExchanges.RSA);
_props[TLS_RSA_WITH_DES_CBC_SHA] = new CipherSuites(BulkCiphers.DES_CBC, MACs.SHA1, KeyExchanges.RSA);
_props[TLS_RSA_WITH_3DES_EDE_CBC_SHA] = new CipherSuites(BulkCiphers.DES3_EDE_CBC, MACs.SHA1, KeyExchanges.RSA);
_props[TLS_RSA_WITH_AES_128_CBC_SHA] = new CipherSuites(BulkCiphers.AES_128, MACs.SHA1, KeyExchanges.RSA);
_props[TLS_RSA_WITH_AES_256_CBC_SHA] = new CipherSuites(BulkCiphers.AES_256, MACs.SHA1, KeyExchanges.RSA);
// ...
// more later
}
private static function getProp(cipher:uint):CipherSuites {
var p:CipherSuites = _props[cipher];
if (p==null) {
throw new Error("Unknown cipher "+cipher.toString(16));
}
return p;
}
public static function getBulkCipher(cipher:uint):uint {
return getProp(cipher).cipher;
}
public static function getMac(cipher:uint):uint {
return getProp(cipher).hash;
}
public static function getKeyExchange(cipher:uint):uint {
return getProp(cipher).key;
}
public static function getDefaultSuites():Array {
// a list of acceptable ciphers, sorted by preference.
return [
TLS_RSA_WITH_AES_256_CBC_SHA,
TLS_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_RSA_WITH_AES_128_CBC_SHA,
TLS_RSA_WITH_RC4_128_SHA,
TLS_RSA_WITH_RC4_128_MD5,
TLS_RSA_WITH_DES_CBC_SHA
];
}
public var cipher:uint;
public var hash:uint;
public var key:uint;
public function CipherSuites(cipher:uint, hash:uint, key:uint) {
this.cipher = cipher;
this.hash = hash;
this.key = key;
}
}
}
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