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Alex Rivera
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Say I have some data and a password, and I want to encrypt the data in such a way that it can only be recovered with the right password. How does this technically work (i.e. how to implement this)? I often hear people use bitshifting for encryption, but how do you base that on a password? How does password-based encryption work? An example is Mac OS X FileVault Thanks. If you give sample code, preferably in C, Objective-C or pseudocode.
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