byte[] m = Base64.decodeBase64("mX/9zl8rflH5pLaP5P1Qd/9wXwNBSx7OpLlYDnGr7wD0njiDfPSUkgf9oF5NcvZwl24qdJ1SLmrgUtnr+yeXBNZNKaan1xXKISHdlHvbW5G8nJCJW6CuaHMkVw3Y7kwaIIlUdv09vxfjj0AoabttjbtF1kqETzbQ6fK3EN6sY5U=");
         byte[] e = Base64.decodeBase64("AQAB");
         BigInteger b1 = new BigInteger(1, m);
         BigInteger b2 = new BigInteger(1, e);
         byte[] m1 = Base64.decodeBase64("3RgqP5YOYUXft8YOlDphyaCoof27MSfTD2eVCFVXB5hatrls1fSUcmUuWuGV970sS6KQZZtyWHQ5970sCzKFlq82He8Uoe0JM3axBvd6PbSGjulUJr62qNW5hgkIEfxSRYl8AQsbbusFtks4obfepsfE02cLmmZepnZAdIOWifE=");
         byte[] e1 = Base64.decodeBase64("QcSZdLbHakolxX4GAjPnuNmwsBdRIsss7o0qeQMh02GPwoEgDfkmW20bv+8Q9FPypEEkYQU/m25ffAFq453QvLegYYi8OvWN+dvgchQRdeb22d+s6xYGGN9DRcPFRE48INde8FBHf/lzVgToV75h1H7g+jB4hLmLeuIuHsB43/0=");
         BigInteger b11 = new BigInteger(1, m1);
         BigInteger b21 = new BigInteger(1, e1);
         KeyFactory keyFactory = KeyFactory.getInstance("RSA");
         RSAPublicKeySpec keySpec = new RSAPublicKeySpec(b1, b2);
         RSAPublicKey pubKey = (RSAPublicKey) keyFactory.generatePublic(keySpec);
         RSAPrivateKeySpec priKeySpec = new RSAPrivateKeySpec(b11, b21);
         RSAPrivateKey priKey = (RSAPrivateKey) keyFactory.generatePrivate(priKeySpec);

 private static String getRSAPrivateKeyAsNetFormat(byte[] encodedPrivateKey) {
         try {
             StringBuffer buff = new StringBuffer(1024);
             PKCS8EncodedKeySpec pvkKeySpec = new PKCS8EncodedKeySpec(encodedPrivateKey);
             KeyFactory keyFactory = KeyFactory.getInstance("RSA");
             RSAPrivateCrtKey pvkKey = (RSAPrivateCrtKey) keyFactory.generatePrivate(pvkKeySpec);
             buff.append("<RSAKeyValue>");
             buff.append("<Modulus>" + encodeBase64(removeMSZero(pvkKey.getModulus().toByteArray())) + "</Modulus>");
             buff.append("<Exponent>" + encodeBase64(removeMSZero(pvkKey.getPublicExponent()toByteArray())) + "</Exponent>");
             buff.append("<P>" + encodeBase64(removeMSZero(pvkKey.getPrimeP().toByteArray())) + "</P>");
             buff.append("<Q>" + encodeBase64(removeMSZero(pvkKey.getPrimeQ().toByteArray())) + "</Q>");
             buff.append("<DP>" + encodeBase64(removeMSZero(pvkKey.getPrimeExponentP().toByteArray())) + "</DP>");
             buff.append("<DQ>" + encodeBase64(removeMSZero(pvkKey.getPrimeExponentQ().toByteArray())) + "</DQ>");
             buff.append("<InverseQ>" + encodeBase64(removeMSZero(pvkKey.getCrtCoefficient().toByteArray())) + "</InverseQ>");
             buff.append("<D>" + encodeBase64(removeMSZero(pvkKey.getPrivateExponent().toByteArray())) + "</D>");
             buff.append("</RSAKeyValue>");
             return buff.toString();
         } catch (Exception e) {
             System.err.println(e);
             return null;
         }
     } 

 private static String getRSAPublicKeyAsNetFormat(byte[] encodedPublicKey) {
         try {
             StringBuffer buff = new StringBuffer(1024);
             //Only RSAPublicKeySpec and X509EncodedKeySpec supported for RSA public keys
             KeyFactory keyFactory = KeyFactory.getInstance("RSA");
             RSAPublicKey pukKey = (RSAPublicKey) keyFactory.generatePublic(new X509EncodedKeySpec(encodedPublicKey));
             buff.append("<RSAKeyValue>");
             buff.append("<Modulus>" + encodeBase64(removeMSZero(pukKey.getModulus().toByteArray())) + "</Modulus>");
             buff.append("<Exponent>" + encodeBase64(removeMSZero(pukKey.getPublicExponent().toByteArray())) + "</Exponent>");
             buff.append("</RSAKeyValue>");
             return buff.toString();
         } catch (Exception e) {
             System.err.println(e);
             return null;
         }
     }