Discrete logarithms in finite fields and their cryptographic significance
Proc. of the EUROCRYPT 84 workshop on Advances in cryptology: theory and application of cryptographic techniques
Efficient zero-knowledged identification scheme for smart cards
Lecture Notes in Computer Science on Advances in Cryptology-EUROCRYPT'88
How to keep authenticity alive in a computer network
EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
Communications of the ACM
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Using encryption for authentication in large networks of computers
Communications of the ACM
Efficient Identification and Signatures for Smart Cards
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
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The Exponential Security System (TESS) developed at the European Institute for System Security is the result of an attempt to increase the security in heterogenous computer networks. In this paper we present the cryptographic protocols in the kernel of TESS. We show how they can be used to implement access control, authentication, confidentiality protection, key exchange, digital signatures and distributed network security management. We also look at the compatibility of TESS with existing standards, like the X.509 Directory Authentication Framework, and compare it to established systems like Kerberos. A comparison of TESS with the non-electronic "paper"-world of authentication and data exchange shows strong parallels. Finally we give a short overview of the current state of development and availability of different TESS components.