Elastic Block Ciphers

@article{Cook2004ElasticBC,
  title={Elastic Block Ciphers},
  author={Debra L. Cook and Moti Yung and Angelos D. Keromytis},
  journal={IACR Cryptology ePrint Archive},
  year={2004},
  volume={2004},
  pages={128}
}
We introduce a new concept of elastic block ciphers, symmetric-key encryption algorithms that for a variable size input do not expand the plaintext, (i.e., do not require plaintext padding), while maintaining the diffusion property of traditional block ciphers and adjusting their computational load proportionally to the size increase. Elastic block ciphers are ideal for applications where length-preserving encryption is most beneficial, such as protecting variable-length database entries or… CONTINUE READING
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