Refinement and extension of encrypted key exchange
ACM SIGOPS Operating Systems Review
Three-party encrypted key exchange: attacks and a solution
ACM SIGOPS Operating Systems Review
Password-Authenticated Key Exchange between Clients with Different Passwords
ICICS '02 Proceedings of the 4th International Conference on Information and Communications Security
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
Group Diffie-Hellman Key Exchange Secure against Dictionary Attacks
ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Encrypted Key Exchange: Password-Based Protocols SecureAgainst Dictionary Attacks
SP '92 Proceedings of the 1992 IEEE Symposium on Security and Privacy
Authenticated key exchange secure against dictionary attacks
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
Provably secure password-authenticated key exchange using Diffie-Hellman
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
Secure password pocket for distributed web services
NPC'05 Proceedings of the 2005 IFIP international conference on Network and Parallel Computing
Password-based group key exchange secure against insider guessing attacks
CIS'05 Proceedings of the 2005 international conference on Computational Intelligence and Security - Volume Part II
Password-Based authenticated key exchange in the three-party setting
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
Cryptanalysis of an improved client-to-client password-authenticated key exchange (C2C-PAKE) scheme
ACNS'05 Proceedings of the Third international conference on Applied Cryptography and Network Security
N-Party encrypted diffie-hellman key exchange using different passwords
ACNS'05 Proceedings of the Third international conference on Applied Cryptography and Network Security
Electronic Notes in Theoretical Computer Science (ENTCS)
Password-Authenticated Key Exchange between Clients in a Cross-Realm Setting
NPC '08 Proceedings of the IFIP International Conference on Network and Parallel Computing
IWDW '07 Proceedings of the 6th International Workshop on Digital Watermarking
A New Client-to-Client Password-Authenticated Key Agreement Protocol
IWCC '09 Proceedings of the 2nd International Workshop on Coding and Cryptology
AAECC'07 Proceedings of the 17th international conference on Applied algebra, algebraic algorithms and error-correcting codes
Cross-realm password-based server aided key exchange
WISA'10 Proceedings of the 11th international conference on Information security applications
Cryptanalysis of two provably secure cross-realm C2C-PAKE protocols
INDOCRYPT'06 Proceedings of the 7th international conference on Cryptology in India
Constant-Round password-based group key generation for multi-layer ad-hoc networks
SPC'06 Proceedings of the Third international conference on Security in Pervasive Computing
CANS'11 Proceedings of the 10th international conference on Cryptology and Network Security
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We study client-to-client password-authenticated key exchange (C2C-PAKE) enabling two clients in different realms to agree on a common session key using different passwords. Byun et al. first presented C2C-PAKE schemes under the cross-realm setting. However, the schemes were not formally treated, and subsequently found to be flawed. In addition, in the schemes, there are still rooms for improvements both in computational and communicational aspects. In this paper we suggest an efficient C2C-PAKE (EC2C-PAKE) protocol, and prove that EC2C-PAKE protocol is secure under the decisional Diffie-Hellman assumption in the ideal cipher and random oracle models.