Cyber-attacks are becoming more common against Internet users due to the increasing
dependency on online communication in their daily lives. X. 509 Public-Key Infrastructure …

This paper profiled blockchain studies in information systems (IS) journals from 2016 to
2022. Drawing on the 443 selected articles from 77 IS journals, we proposed a classification …

The centralized exchange is one of the hottest DeFi applications based on blockchain
transaction systems. However, depositing user assets to the exchanges brings the security …

The conventional Public Key Infrastructure (PKI) has long been plagued by security issues
stemming from its centralized and non-transparent design. In recent years, blockchain …

Private key management is a complex obstacle arising from the traditional public key
infrastructure model. However, before any related security breach can be addressed, it must …

A decentralized identity system that can provide users with self-sovereign digital identities to
facilitate complete control over their own data is paramount to Web 3.0. The accounting …

The main challenges with traditional public key infrastructures arise from the detection of
fraudulent public key certificates and the timely retrieval of an up-to-date record of revoked …

The protection of CA's signing keys is one of the most crucial security concerns in PKI.
However, these keys can still be exposed today by human errors or various carefully …

The consensus algorithm is a key technology of blockchain and determines the performance
of distributed systems. The PBFT algorithm with high communication complexity and poor …

Kurzfassung Public Key Infrastrukturen (PKI) und Zertifizierungsstellen (Certificate
Authorities-CA) spielen eine entscheidende Rolle für die Sicherheit des Internets. Angriffe …