Browsing NTNU Open by Author "Jiang, Yao"

Now showing items 1-5 of 5

    • 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 ...

    • Cryptographic Tools for Cloud Security 

      Jiang, Yao (Doctoral theses at NTNU;2021:126, Doctoral thesis, 2021)

    • The Direction of Updatable Encryption Does Not Matter Much 

      Jiang, Yao (Peer reviewed; Journal article, 2020)
      Updatable encryption schemes allow for key rotation on ciphertexts. A client outsourcing storage of encrypted data to a cloud server can change its encryption key. The cloud server can update the stored ciphertexts to the ...

    • Fast and Secure Updatable Encryption 

      Boyd, Colin Alexander; Davies, Gareth Thomas; Gjøsteen, Kristian; Jiang, Yao (Peer reviewed; Journal article, 2020)
      Updatable encryption allows a client to outsource ciphertexts to some untrusted server and periodically rotate the encryption key. The server can update ciphertexts from an old key to a new key with the help of an update ...

    • Offline Assisted Group Key Exchange 

      Boyd, Colin Alexander; Davies, Gareth Thomas; Gjøsteen, Kristian; Jiang, Yao (Journal article; Peer reviewed, 2018)
      We design a group key exchange protocol with forward secrecy where most of the participants remain offline until they wish to compute the key. This is well suited to a cloud storage environment where users are often offline, ...