• Classification of Keys in MQQ-SIG 

      Jacobsen, Håkon (Master thesis, 2012)
      The security of almost all public-key cryptography is based on some computationally hard problem. Most prominent are the problems of factoring integers into primes and computing discrete logarithms in finite groups. However, ...
    • Linearity Measures for Multivariate Public Key Cryptography 

      Samardjiska, Simona; Gligoroski, Danilo (Chapter, 2014)
      We propose a new general framework for the security of Multivariate Quadratic (MQ) public key schemes with respect to attacks that exploit the existence of linear subspaces. We adopt linearity measures that have been used ...
    • MULTIVARIATE PUBLIC KEY CRYPTOSYSTEMS PRODUCED BY QUASIGROUPS 

      Samardjiska, Simona (Doctoral thesis at NTNU;2015:101, Doctoral thesis, 2015)
      Multivariate public key cryptography (MPKC) is the study of public key cryptosystems based on the NP-hard problem of solving multivariate quadratic (MQ) systems of equations over finite fields. In the past two decades ...
    • Pi-Cipher: Authenticated Encryption for Big Data 

      Gligoroski, Danilo; Mihajloska, Hristina; Samardjiska, Simona; Jacobsen, Håkon; Jensen, Rune Erlend; El-Hadedy, Mohamed (Chapter, 2014)
      In today’s world of big data and rapidly increasing telecommunications, using secure cryptographic primitives that are parallelizable and incremental is becoming ever more important design goal. π-Cipher is parallel, ...