Ueli Maurer (born 26 May 1960 in Leimbach, Switzerland) is a professor for cryptography at the Swiss Federal Institute of Technology Zurich (ETH Zurich).
Maurer studied electrical engineering at ETH Zurich and obtained his PhD in 1990, advised by James Massey. Afterwards, he joined Princeton university as a postdoc. In 1992, he became part of the computer science faculty of ETH Zurich.
In a seminal work, he showed that the Diffie-Hellman problem is (under certain conditions) equivalent to solving the discrete log problem.
From 2002 until 2008, Maurer also served on the board of Tamedia AG.
Maurer is editor of the Journal of Cryptology and used to be editor-in-chief.
In 2015, he was named a Fellow of the Association for Computing Machinery "for contributions to cryptography and information security."