public static SecretKey decryptKey(String contents) throws CryptException {
final AsymmetricAlgorithm alg = new RSA();
alg.setKey(getKey().getPrivate());
byte[] result = null;
SecretKey key = null;
alg.initDecrypt();
result = alg.decrypt(contents, new Base64Converter());
key = new SecretKeySpec(result, "AES");
return key;
}
/**
* Decrypt with my private key. borrowing from
* http://www.itcsolutions.eu/2011/08/24/how-to-encrypt-decrypt-files-in-java-with-aes-in-cbc-mode-using-bouncy-castle-api-and-netbeans-or-eclipse/
* .
*
* @param contents
* @return
* @throws IOException
*/
public static String encryptKey(SecretKey newKey, XMPNode target) throws IOException {
final AsymmetricAlgorithm alg = new RSA();
alg.setKey(target.getCert().getPublicKey());
String result = null;
try {
alg.initEncrypt();
result = alg.encrypt(newKey.getEncoded(), new Base64Converter());
} catch (CryptException e) {
logger.error("Error in encryption. ", e);
e.printStackTrace();
}
return result;
}