Hi all,
I'm trying to use the cacheword library in order to printout the hex of
the encrypted passphrase.
I'm sure that I'm make some mistake since for some input I get the hex
and for other input (with the same code), I get an exception:
javax.crypto.BadPaddingException: mac check in GCM failed.
After my signature I pasted the method used in my code. I really
appreciate if you can take a look and see what I'm doing wrong.
Besides the code, I have a question about chatsecure and cacheword. The
impsenc.db and media.db files are encrypted with same algorithm
(hopefully analogous to the code that I pasted) and same parameters?
Thanks,
Massimo
public void letsgo(){
String encodedSecret = <the encrypted_secrets from
info.guardianproject.cacheword.prefs.xml file>
String passphrase =<the password chosed as master password>;
char[] x_passphrase = passphrase.toCharArray();
byte[] preparedSecret =
android.util.Base64.decode(y_encodedSecret,Base64.DEFAULT);
SerializedSecretsV1 ss = new
SerializedSecretsLoader().loadSecrets(preparedSecret);
byte[] x_rawSecretKey = null;
try {
PassphraseSecretsImpl crypto = new PassphraseSecretsImpl();
x_rawSecretKey = crypto.decryptWithPassphrase(x_passphrase,ss);
StringBuilder sb = new StringBuilder();
for (byte b : x_rawSecretKey) {
sb.append(String.format("%02X ", b));
}
System.out.println(" HEX: "+ sb.toString());
if (x_rawSecretKey == null)
throw new GeneralSecurityException("PPP");
}catch (Throwable t)
{
System.out.println("Inside catch: " + t);
}
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