Kerberos authentication protocol implementation based on DHR atypical construct

Abstract

As a commonly used identity authentication protocol, the Kerberos authentication protocol uses a symmetric password system, which has significant efficiency advantages but also brings risks such as password guessing and replay attacks. Some existing research combines public key cryptography with Kerberos to greatly enhance its security, but the large amount of computation required for public-private key cryptography leads to lower efficiency. This paper proposes a solution that uses the DHR non-typical construction to provide dynamism and randomness to the Kerberos authentication protocol to improve its security while minimizing efficiency losses. Experimental results show that the improved protocol can resist attacks while ensuring efficiency.