Section: New Results

New Primitives (Identity-Based Encryption)

Participants : Michel Ferreira Abdalla, Malika Izabachène, David Pointcheval, Damien Vergnaud.

• New Anonymity Notions for Identity-Based Encryption (Formal to Practical Security)

• Adaptive-ID Secure Revocable Identity-Based Encryption (CT-RSA '09)

• Towards Black-Box Accountable Authority IBE with Short Ciphertexts and Private Keys (PKC '09)

• Verifiable Random Functions from Identity based Key Encapsulation (EUROCRYPT '09)

Identity-based encryption makes public-key cryptography much easier since the public key is simply the identity of the recipient: no certification of the public key is needed anymore. We studied several tools related to this primitive.