Arjen Lenstra
Dutch mathematician and cryptographer
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Arjen Klaas Lenstra is a Dutch mathematician, cryptographer and computational number theorist. He is a professor emeritus from the École Polytechnique Fédérale de Lausanne where he headed of the Laboratory for Cryptologic Algorithms. Wikipedia
Place of birth: Groningen, Netherlands
Affiliation: Swiss Federal Institute of Technology in Lausanne
Research interests: Computational Number Theory, Integer Factorization, and Discrete Logarithm