The Design of a Stream Cipher LEX

  title={The Design of a Stream Cipher LEX},
  author={Alex Biryukov},
  booktitle={Selected Areas in Cryptography},
In this paper we define a notion of leak extraction from a block cipher. We demonstrate this new concept on an example of AES. A result is LEX: a simple AES-based stream cipher which is at least 2.5 times faster than AES both in software and in hardware. 
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