How to prove yourself: practical solutions to identification and signature problems
Proceedings on Advances in cryptology---CRYPTO '86
Authentication and authenticated key exchanges
Designs, Codes and Cryptography
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ESORICS '92 Proceedings of the Second European Symposium on Research in Computer Security
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CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
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PKC '98 Proceedings of the First International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
Random self-reducibility and zero knowledge interactive proofs of possession of information
SFCS '87 Proceedings of the 28th Annual Symposium on Foundations of Computer Science
WMCSA '94 Proceedings of the 1994 First Workshop on Mobile Computing Systems and Applications
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Security in Wireless Communication
Wireless Personal Communications: An International Journal
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EuroPKI'07 Proceedings of the 4th European conference on Public Key Infrastructure: theory and practice
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The rapid growth of wireless systems provides us with mobility. In mobile environments, authentication of a user and confidentiality of his identity and location are two major security issues, which seem incompatible with each other. In this manuscript, we propose a user authentication scheme with identity and location privacy. This scheme is an interactive protocol based on public key cryptosystems. In the proposed scheme, to prove his authenticity, a user utilizes a digital signature scheme based on a problem with a random self-reducible relation such as the square root modulo a composite number problem and the discrete logarithm problem. We also define the security requirements for user authentication with identity and location privacy, impersonationfreeness and anonymity, against active attacks, and prove that the proposed scheme satisfies them assuming the security of the cryptographic schemes used in the scheme. Furthermore, we show that we can construct authenticated key agreement schemes by applying the proposed scheme to some existing authenticated key agreement schemes.