Format Controlling Encryption Using Datatype Preserving Encryption

@article{Mattsson2009FormatCE,
  title={Format Controlling Encryption Using Datatype Preserving Encryption},
  author={Ulf T. Mattsson},
  journal={IACR Cryptology ePrint Archive},
  year={2009},
  volume={2009},
  pages={257}
}
Datatype­Preserving Encryption (DTP) enables encryption of values within a certain character set into ciphertext restricted to the same set, while still keeping data length. This is in contrast to conventional block cipher modes which produce binary data, i e each encrypted character may have an arbitrary value, possibly outside the original character set, often accompanied with a length expansion caused by padding. Format­Controlling Encryption (FCE) is an extension to DTP, for which data… CONTINUE READING

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