>
>
> You can also try deriving the wrap key separately with something like:
>
> KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt,
> ITERATION_COUNT, KEY_LENGTH);
> SecretKeyFactory keyFactory = SecretKeyFactory
> .getInstance("PBKDF2WithHmacSHA1");
> SecretKey key = keyFactory.generateSecret(keySpec);
>
> And initialize the Cipher in WRAP mode with this SecretKey.
>
Good thought, but it also does not work. The problem is the same:
java.lang.UnsupportedOperationException, when I try to wrap the key. This
only happens in Android 4.2. Everything works fine in 4.1 and every other
previous version I've tested.
Matthew
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