Handbook of Applied Cryptography
Handbook of Applied Cryptography
Provably Secure Implicit Certificate Schemes
FC '01 Proceedings of the 5th International Conference on Financial Cryptography
Postal Revenue Collection in the Digital Age
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
Securing vehicular ad hoc networks
Journal of Computer Security - Special Issue on Security of Ad-hoc and Sensor Networks
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Group signatures: better efficiency and new theoretical aspects
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
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We propose an anonymous identity-based public key group implicit certificate scheme to preserve the anonymity of mobile users in a communication network. The use of a standard public key certificate in a wireless communication network will allow unauthorized entities, who are listening to the communication channel, to identify and trace movements and locations of a mobile user using the user's unique public key in the certificate. The disclosure of such information may raise privacy concerns. In our proposed anonymous identity-based public key group implicit certificate scheme, recipients of a broadcasted message can authenticate the transmitter and validate the integrity of the message without identifying the transmitter. In case of a dispute and malicious activities, the identity of the mobile user who broadcasted the disputed message can be revealed only by a trusted authority.