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; 
} 
}