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Encryption is the process of transforming plaintext using a cipher to make it unreadable to anyone except those possessing the key.

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must use a common key. The key can change occasionally, but not be user-specific or anything like that. What can I do to avoid people analyzing the encrypted results of known text to find the key? I know there are things like Length Extension Attacks. What encryption algorithm would be safest? …
asked Feb 25 '13 by Earlz