Security, Privacy and Trust in Pervasive and Ubiquitous Computing, International Workshop on (2006)
June 29, 2006 to June 29, 2006
Bogdan Groza , Politehnica University of Timisoara, Romania
The objective of this paper is to propose a cryptographic protocol which provides authenticity in the exchange of information between two entities without using any shared secret and by using only oneway chains. Such a protocol may have many applications and may be of interest especially in constrained environments where computational power is limited since one-way chains may be constructed using some of the simplest cryptographic one-way functions. We propose and investigate two approaches based on one-way chains, which we call: delayed message authentication and direct message authentication. Both of them have some shortcomings and a final hybrid approach, which combines their advantages without inheriting their weaknesses, appears to be quite useful and effective.
Bogdan Groza, "Using One-Way Chains to Provide Message Authentication without Shared Secrets", Security, Privacy and Trust in Pervasive and Ubiquitous Computing, International Workshop on, vol. 00, no. , pp. 82-87, 2006, doi:10.1109/SECPERU.2006.21