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All Outputs (3)

Formalizing group blind signatures and practical constructions without random oracles (2013)
Journal Article
Ghadafi, E. (2013). Formalizing group blind signatures and practical constructions without random oracles. Lecture Notes in Artificial Intelligence, 7959 LNCS, 330-346. https://doi.org/10.1007/978-3-642-39059-3_23

Group blind signatures combine anonymity properties of both group signatures and blind signatures and offer privacy for both the message to be signed and the signer. The primitive has been introduced with only informal definitions for its required se... Read More about Formalizing group blind signatures and practical constructions without random oracles.

Efficient signatures of knowledge and DAA in the standard model (2013)
Journal Article
Bernhard, D., Fuchsbauer, G., & Ghadafi, E. (2013). Efficient signatures of knowledge and DAA in the standard model. Lecture Notes in Artificial Intelligence, 7954 LNCS, 518-533. https://doi.org/10.1007/978-3-642-38980-1_33

Direct Anonymous Attestation (DAA) is one of the most complex cryptographic protocols deployed in practice. It allows an embedded secure processor known as a Trusted Platform Module (TPM) to attest to the configuration of its host computer without vi... Read More about Efficient signatures of knowledge and DAA in the standard model.

Anonymous attestation with user-controlled linkability (2013)
Journal Article
Bernhard, D., Fuchsbauer, G., Ghadafi, E., Smart, N. P., & Warinschi, B. (2013). Anonymous attestation with user-controlled linkability. International Journal of Information Security, 12(3), 219-249. https://doi.org/10.1007/s10207-013-0191-z

This paper is motivated by the observation that existing security models for direct anonymous attestation (DAA) have problems to the extent that insecure protocols may be deemed secure when analysed under these models. This is particularly disturbing... Read More about Anonymous attestation with user-controlled linkability.