Johannes Buchmann

Postquantum Cryptography—State of the Art

2017 · IEEE Security & Privacy

Because of public-key cryptography’s relevance and quantum computers’ increasingly realistic threat to this technology, it’s necessary to come up with practical and secure postquantum cryptography. This special issue aims to present the state of the …

Coalition-Resistant Peer Rating for Long-Term Confidentiality

2018

The outsourced storage of sensitive data requires long-term confidentiality guarantees. Proactive secret sharing in a distributed storage system provides such guarantees. However, some storage service providers lack in reliability or performance for proactive secret sharing …