Hot answers tagged cipher
Usually FPE is $Rank-LPE-DeRank$ Where LPE is length preserving encryption. The advantages of FPE schemes Preserving Formats and Lengths could be used against it too. There are two attack vectors specific to FPE (but they are by design !) Length Preserving This might aide to brute force attacks if the domain is too small. For example encrypting an IP ...
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