CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Key Preassigned Traceability Schemes for Broadcast Encryption
SAC '98 Proceedings of the Selected Areas in Cryptography
Coding Constructions for Blacklisting Problems without Computational Assumptions
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Revocation and Tracing Schemes for Stateless Receivers
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
The LSD Broadcast Encryption Scheme
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on Advances in Cryptology
A Quick Group Key Distribution Scheme with "Entity Revocation"
ASIACRYPT '99 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Efficient Trace and Revoke Schemes
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
The Decision Diffie-Hellman Problem
ANTS-III Proceedings of the Third International Symposium on Algorithmic Number Theory
Efficient Methods for Integrating Traceability and Broadcast Encryption
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
A practical scheme for non-interactive verifiable secret sharing
SFCS '87 Proceedings of the 28th Annual Symposium on Foundations of Computer Science
Efficient Traitor Tracing from Collusion Secure Codes
ICITS '08 Proceedings of the 3rd international conference on Information Theoretic Security
Traitor tracing with constant size ciphertext
Proceedings of the 15th ACM conference on Computer and communications security
Traitors Collaborating in Public: Pirates 2.0
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Pirate evolution: how to make the most of your traitor keys
CRYPTO'07 Proceedings of the 27th annual international cryptology conference on Advances in cryptology
Collusion resistant broadcast encryption with short ciphertexts and private keys
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Generic transformation for scalable broadcast encryption schemes
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
One-Way chain based broadcast encryption schemes
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Efficient broadcast encryption scheme with log-key storage
FC'06 Proceedings of the 10th international conference on Financial Cryptography and Data Security
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
Identity-based trace and revoke schemes
ProvSec'11 Proceedings of the 5th international conference on Provable security
Codes based tracing and revoking scheme with constant ciphertext
ProvSec'12 Proceedings of the 6th international conference on Provable Security
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In this paper we propose methods to cope with the Pirates 2.0 attack strategy against tracing and revoking schemes presented at Eurocrypt 2009. In the Pirates 2.0 attack model traitors collaborate in public and partially share their secret information with a certified guarantee of anonymity. Several classes of tracing and revoking schemes are subject to such a new threat. We focus our attention on the tree-based class of schemes. We start by discussing some simple techniques which can partially help to deal with the attack, and point out their limits. Then, we describe a new hybrid scheme which can be used to face up the Pirates 2.0 attack strategy.