Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Undetectable on-line password guessing attacks
ACM SIGOPS Operating Systems Review
Provably secure session key distribution: the three party case
STOC '95 Proceedings of the twenty-seventh annual ACM symposium on Theory of computing
The security of the cipher block chaining message authentication code
Journal of Computer and System Sciences
Three-party encrypted key exchange: attacks and a solution
ACM SIGOPS Operating Systems Review
The Oracle Diffie-Hellman Assumptions and an Analysis of DHIES
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
Optimal authentication protocols resistant to password guessing attacks
CSFW '95 Proceedings of the 8th IEEE workshop on Computer Security Foundations
Encrypted Key Exchange: Password-Based Protocols SecureAgainst Dictionary Attacks
SP '92 Proceedings of the 1992 IEEE Symposium on Security and Privacy
Efficient network authentication protocols: lower bounds and optimal implementations
Distributed Computing
Three weaknesses in a simple three-party key exchange protocol
Information Sciences: an International Journal
Cryptanalysis of simple three-party key exchange protocol (S-3PAKE)
Information Sciences: an International Journal
Enhanced password-based simple three-party key exchange protocol
Computers and Electrical Engineering
Authenticated key exchange secure against dictionary attacks
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
A simple threshold authenticated key exchange from short secrets
ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
Simple password-based encrypted key exchange protocols
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
New directions in cryptography
IEEE Transactions on Information Theory
Information Sciences: an International Journal
Cryptanalysis of a communication-efficient three-party password authenticated key exchange protocol
Information Sciences: an International Journal
Information Sciences: an International Journal
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Password-based three-party authenticated key exchange protocols are extremely important to secure communications and are now extensively adopted in network communications. These protocols allow users to communicate securely over public networks simply by using easy-to-remember passwords. In considering authentication between a server and user, this study categorizes password-based three-party authenticated key exchange protocols into explicit server authentication and implicit server authentication. The former must achieve mutual authentication between a server and users while executing the protocol, while the latter only achieves authentication among users. This study presents two novel, simple and efficient three-party authenticated key exchange protocols. One protocol provides explicit server authentication, and the other provides implicit server authentication. The proposed protocols do not require server public keys. Additionally, both protocols have proven secure in the random oracle model. Compared with existing protocols, the proposed protocols are more efficient and provide greater security.