Crypted Jelly Bean fix

Android v4.2 changed default provider for SecureRandom. Because of that the Cipher throws this exception on v4.2: BadPaddingException: pad block corrupted.

The solution is quite simple. Just add explicitly specified provider as the second parameter of the SecureRandom.getInstance() method:

 SecureRandom sr = SecureRandom.getInstance( "SHA1PRNG", "Crypto" );

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