• Attacks on the Basic cMix Design: On the Necessity of Commitments and Randomized Partial Checking 

      Galteland, Herman; Mjølsnes, Stig Frode; Olimid, Ruxandra-Florentina (Journal article; Peer reviewed, 2017)
      The cMix scheme was proposed by Chaum et al. in 2016 as the first practical set of cryptographic protocols that offer sender-recipient unlinkability at scale. The claim was that the cMix is secure unless all nodes collude. ...
    • Cloud-assisted Asynchronous Key Transport with Post-Quantum Security 

      Davies, Gareth Thomas; Galteland, Herman; Gjøsteen, Kristian; Jiang, Yao (Peer reviewed; Journal article, 2020)
      In cloud-based outsourced storage systems, many users wish to securely store their files for later retrieval, and additionally to share them with other users. These retrieving users may not be online at the point of the ...
    • Fully Homomorphic Encryption 

      Galteland, Herman (Master thesis, 2015)
      I 2009 presenterte Craig Gentry det første krypteringssystemet som klarte å utføre vilkårlig mange homomorfe operasjoner, og i prosessen lagde han også en framgangsmåte på hvordan man konstruerer et slikt system. I denne ...
    • Malicious cryptography 

      Galteland, Herman (Doctoral theses at NTNU;2020:116, Doctoral thesis, 2020)
    • Malware, Encryption, and Rerandomization - Everything is Under Attack 

      Galteland, Herman; Gjøsteen, Kristian (Journal article; Peer reviewed, 2017)
      A malware author constructing malware wishes to infect a specific location in the network. The author will then infect n initial nodes with n different variations of his malicious code. The malware continues to infect ...