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Equivalent to 2048 bit RSA. RSA256CryptoSystem, takes advantage of Unique padding algorithm that ensures that if the Key is factored it remains imposible to decipher the text: hence its power. Keys can't be easily factored though. To Use this CryptoSystem effectively, Keys should be generated or requested before a file can be loaded for processing, otherwise the keys are incorrect: a bug I am working on. RSA256CryptoSystem, is a powerful 256 bit RSA cryptosystem, and should only be used for limited encryption on a Dual Processor system: Windows Vista. This is due to the nature of RSA: very high in computing power especially generation of keys and encryption/decryption. A key should be generated or acquired from persistence keystore, .....