75 search results - page 3 / 15 » Efficient Revocation in Group Signatures |
177
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CRYPTO
2000
Springer
15 years 10 months ago
2000
Springer
A group signature scheme allows a group member to sign messages anonymously on behalf of the group. However, in the case of a dispute, the identity of a signature’s originator ca...
170
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PST
2004
15 years 7 months ago
2004
This paper presents the first mediated hierarchical identity-based encryption and signature schemes. Both schemes are designed to support information access control in hierarchical...
203
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EUROPKI
2006
Springer
15 years 10 months ago
2006
Springer
Privacy-aware Public Key Infrastructure (PKI) can maintain user access control and yet protect user privacy, which is envisioned as a promising technique in many emerging applicat...
137
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CRYPTO
2004
Springer
15 years 10 months ago
2004
Springer
Abstract. We study the problem of broadcasting confidential information to a collection of n devices while providing the ability to revoke an arbitrary subset of those devices (and...