Communications of the ACM
Forward-Secure Threshold Signature Schemes
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
A Simple Publicly Verifiable Secret Sharing Scheme and Its Application to Electronic
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Non-Interactive and Information-Theoretic Secure Verifiable Secret Sharing
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
A PVSS as Hard as Discrete Log and Shareholder Separability
PKC '01 Proceedings of the 4th International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
Verifiable Secret Redistribution for Archive Systems
SISW '02 Proceedings of the First International IEEE Security in Storage Workshop
An Extended Verifiable Secret Redistribution Protocol for Archival Systems
ARES '06 Proceedings of the First International Conference on Availability, Reliability and Security
Publicly Verifiable Secret Sharing with Enrollment Ability
SNPD '07 Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 03
A practical scheme for non-interactive verifiable secret sharing
SFCS '87 Proceedings of the 28th Annual Symposium on Foundations of Computer Science
Publicly verifiable secret sharing
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Robust threshold DSS signatures
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Practical threshold signatures
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
A protocol of member-join in a secret sharing scheme
ISPEC'06 Proceedings of the Second international conference on Information Security Practice and Experience
Two protocols for member revocation in secret sharing schemes
PAISI'11 Proceedings of the 6th Pacific Asia conference on Intelligence and security informatics
A simultaneous members enrollment and revocation protocol for secret sharing schemes
PAISI'12 Proceedings of the 2012 Pacific Asia conference on Intelligence and Security Informatics
Hi-index | 0.00 |
Publicly verifiable secret sharing is a kind of special verifiable secret sharing, in which the shares of a secret can be verified by everyone, not only shareholders. Because of the property of public verifiability, it plays an important role in key-escrow, electronic voting, and so on. In this paper, we discuss a problem of how to publicly verifiably expand a member without changing old shares in a secret sharing scheme and present such a scheme. In the presented scheme, a new member can join a secret sharing scheme based on discrete logarithms to share the secret with the help of old shareholders. Furthermore, everyone besides the new member can verify the validity of the new member's share and any old shareholder doesn't need to change her old share. That means it is very convenient for key management.