process method
Implementation
Uint8List process(Uint8List data) {
if (_cipher is! CBCBlockCipher) {
throw StateError('PaddedBlockCipherImpl requer CBCBlockCipher.');
}
final cbc = _cipher;
if (cbc.forEncryption) {
return _encrypt(data, cbc);
}
return _decrypt(data, cbc);
}