Base64编码输出与as3crypto和pycrypto加密库不同

private function testOnInit():void {
  var t_toEnc:String = 'testtest';
  var t_byAry:ByteArray = Hex.toArray( Hex.fromString( t_toEnc ) );
  var t_key:ByteArray = Hex.toArray( Hex.fromString( 'Thisisthekey' ) );
  var t_cbc:CBCMode = new CBCMode( new BlowFishKey( t_key ), new NullPad );
  var t_enc:String;
  t_cbc.IV = Hex.toArray( '30313233' );
  t_cbc.encrypt( t_byAry );
  t_enc = Base64.encodeByteArray( t_byAry );      
  dbg( 'b64 encrypted string ' + t_enc ); //this is just a debugging function we use in our code.
}

from Crypto.Cipher import Blowfish
B = Blowfish.new( 'Thisisthekey', Blowfish.MODE_CBC, '30313233' )
S = 'testtest'
X = B.encrypt( S )
import base64
Y = base64.b64encode( X )
print Y

var b:ByteArray = new ByteArray();
b.writeUTFBytes( 'testtest' );
dbg( Base64.encodeByteArray( b ) );

>>> T = 'testtest'
>>> print base64.b64encode( T )