Germán Sáez

Associate professor at UPC
Research area: Discrete Mathematics

PhD in Mathematics obtained at UPC (1998)


Germán Sáez is associate professor in the Dept. of Applied Mathematics IV at the Technical University of Catalonia (UPC-Tech, Barcelona, Spain). He graduated in Mathematics (UB, Barcelona, Spain) in 1987 and received his Ph.D. in Mathematics (UPC-Tech) in 1998. He has been the general co-chair of the conference Eurocrypt’07. He belongs to the Research Group on Mathematics Applied to Cryptography(MAK), at UPC-Tech. His research interests include secret sharing schemes and digital signatures in distributed scenarios.

Research lines

  • Secret sharing shemes
  • Signature schemes
  • Distributed cryptosystems
  • Algorithmic number theory

Selected publications

  • Javier Herranz, Alexandre Ruiz, GermánSáez: Signcryption schemes with threshold unsigncryption, and applications. Des. Codes Cryptography 70(3): 323-345 (2014). DOI 10.1007/s10623-012-9688-0
  • Ismael Jiménez Calvo, Javier Herranz, GermánSáez: A new algorithm to search for small nonzero |x3-y2| values. Math.Comput. 78(268): 2435-2444 (2009). DOI 10.1090/S0025-5718-09-02240-6
  • Vanesa Daza, Javier Herranz, GermánSáez: On the Computational Security of a Distributed Key Distribution Scheme. IEEE Trans. Computers 57(8): 1087-1097 (2008). DOI 10.1109/TC.2008.50
  • GermánSáez: Generation of Key Predistribution Schemes Using Secret Sharing Schemes. Discrete Applied Mathematics 128(1): 239-249 (2003). DOI 10.1016/S0166-218X(02)00448-1
  • CarlesPadró, GermánSáez:Secret sharing schemes with bipartite access structure. IEEE Transactions on Information Theory 46(7): 2596-2604 (2000). DOI 10.1109/18.887867