Eli Biham

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• differential cryptanalysis
  Differential cryptanalysis
  
  Differential cryptanalysis is a general form of cryptanalysis applicable primarily to block ciphers, but also to stream ciphers and cryptographic hash functions....
   - publicly invented during his Ph.D. studies under Adi Shamir
  Adi Shamir
  
  Adi Shamir is an Israeli cryptography. He was one of the inventors of the RSA algorithm , one of the inventors of the Feige-Fiat-Shamir Identification Scheme , one of the inventors of differential cryptanalysis and has made numerous contributions to the fields of cryptography and computer science....
  
• Attacking all triple modes of operation.
• impossible differential cryptanalysis
  Impossible differential cryptanalysis
  
  In cryptography, impossible differential cryptanalysis is a form of differential cryptanalysis for block ciphers. While ordinary differential cryptanalysis tracks differences that propagate through the cipher with greater than expected probability, impossible differential cryptanalysis exploits differences that are impossible at some interme...
   - joint work with Adi Shamir
  Adi Shamir
  
  Adi Shamir is an Israeli cryptography. He was one of the inventors of the RSA algorithm , one of the inventors of the Feige-Fiat-Shamir Identification Scheme , one of the inventors of differential cryptanalysis and has made numerous contributions to the fields of cryptography and computer science....
   and Alex Biryukov
  Alex Biryukov
  
  Alex Biryukov is a cryptographer, currently an assistant professor at the University of Luxembourg. His notable work includes the design of the stream cipher LEX , as well as the cryptanalysis of numerous cryptographic primitives....
  
• Breaking (together with Lars Knudsen
  Lars Knudsen
  
  Lars Ramkilde Knudsen is a Denmark researcher in cryptography, particularly interested in the design and cryptanalysis of block ciphers, cryptographic hash function and message authentication codes ....
  ) the ANSI X9.52 CBCM mode (few days before the final standardization)
• Breaking the GSM security mechanisms (with Elad Barkan and Nathan Keller)
• Co-invention of related-key attack
  Related-key attack
  
  In cryptography, a related-key attack is any form of cryptanalysis where the attacker can observe the operation of a cipher under several different key whose values are initially unknown, but where some mathematical relationship connecting the keys is known to the attacker....
  s.
• Differential Fault Analysis - joint work with Adi Shamir
  Adi Shamir
  
  Adi Shamir is an Israeli cryptography. He was one of the inventors of the RSA algorithm , one of the inventors of the Feige-Fiat-Shamir Identification Scheme , one of the inventors of differential cryptanalysis and has made numerous contributions to the fields of cryptography and computer science....
  

• Serpent
  Serpent (cipher)
  
  Serpent is a symmetric key block cipher which was a finalist in the Advanced Encryption Standard process, where it came second to Rijndael. Serpent was designed by Ross Anderson, Eli Biham, and Lars Knudsen....
   (with Ross Anderson
  Ross Anderson
  
  Ross John Anderson is a researcher, writer, and industry consultant in security engineering.He is Professor in security engineering at the University of Cambridge University of Cambridge Computer Laboratory, where he is engaged in the ....
   and Lars Knudsen
  Lars Knudsen
  
  Lars Ramkilde Knudsen is a Denmark researcher in cryptography, particularly interested in the design and cryptanalysis of block ciphers, cryptographic hash function and message authentication codes ....
  ), a block cipher
  Block cipher
  
  In cryptography, a block cipher is a symmetric key algorithm cipher which operates on fixed-length groups of bits, termed blocks, with an unvarying transformation....
    which was one of the final five contenders to become the Advanced Encryption Standard
  Advanced Encryption Standard process
  
  The Advanced Encryption Standard , the block cipher ratified as a standard by National Institute of Standards and Technology of the United States , was chosen using a process markedly more open and transparent than its predecessor, the aging Data Encryption Standard ....
  
• Tiger
  Tiger (hash)
  
  In cryptography, Tiger is a cryptographic hash function designed by Ross Anderson and Eli Biham in 1995 for efficiency on 64-bit platforms. The size of a Tiger hash value is 192 bits....
   (with Ross Anderson
  Ross Anderson
  
  Ross John Anderson is a researcher, writer, and industry consultant in security engineering.He is Professor in security engineering at the University of Cambridge University of Cambridge Computer Laboratory, where he is engaged in the ....
  ), a hash function
  Hash function
  
  A hash function is any algorithm or function which converts a large, possibly variable-sized amount of data into a small datum, usually a single integer that may serve as an array index into an array....
   fast on 64-bit machines, and
• Py
  Py (cipher)
  
  Py is a stream cipher submitted to eSTREAM by Eli Biham and Jennifer Seberry. It is one of the fastest eSTREAM candidates at around 2.6 cycles per byte on some platforms....
   (with Jennifer Seberry
  Jennifer Seberry
  
  Jennifer Roma Seberry is a cryptographer, mathematician, and computer scientist, currently a professor at the University of Wollongong, Australia....
  ), one of a family of fast stream cipher
  Stream cipher
  
  In cryptography, a stream cipher is a symmetric key algorithm cipher where plaintext bits are combined with a pseudorandom cipher bit stream , typically by an exclusive-or operation....
  s (see article for more detail on their cryptanalytic status).

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