How to construct random functions
Journal of the ACM (JACM)
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
The random oracle methodology, revisited (preliminary version)
STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
An Efficient Protocol for Authenticated Key Agreement
Designs, Codes and Cryptography
Efficient Password-Authenticated Key Exchange Using Human-Memorable Passwords
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Efficient and Non-interactive Non-malleable Commitment
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Analysis of Key-Exchange Protocols and Their Use for Building Secure Channels
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Universal Hash Proofs and a Paradigm for Adaptive Chosen Ciphertext Secure Public-Key Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
A framework for password-based authenticated key exchange
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Forward secrecy in password-only key exchange protocols
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
Authenticated key exchange and key encapsulation in the standard model
ASIACRYPT'07 Proceedings of the Advances in Crypotology 13th international conference on Theory and application of cryptology and information security
HMQV: a high-performance secure diffie-hellman protocol
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Leakage resilient eCK-secure key exchange protocol without random oracles
Proceedings of the 6th ACM Symposium on Information, Computer and Communications Security
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We first introduce the new notion of the so-called target-independent smooth projective hashing (TISPHash) based on computationally-hiding commitments. Based on it and a class of pseudo-random functions (PRFs), we propose a framework for (PKI-based) authenticated key exchange protocols without random oracles and prove it to be secure in the (currently) strongest security definition, the extended Canetti-Krawczyk security definition. Our protocol is actually an abstraction of the efficient key exchange protocol of T. Okamoto. The abstracted protocol enjoys efficient instantiations from any secure encryption scheme that admits an efficient construction of TISPHash and allows a simple and intuitive understanding of its security. In some sense, our construction generalizes the design of T. Okamoto.