DAA-A: Direct Anonymous Attestation with Attributes

Liqun Chen, Rainer Urian

Abstract: The TPM 2.0 specification has been designed to support a new family of Elliptic Curve (EC) based Direct Anonymous Attestation (DAA) protocols. DAA protocols are limited to anonymous or pseudonymous attestations. But often a more flexible attestation would be needed. For instance, attesting that the platform is a certain model from a certain vendor. Such an attestation would require to bind the attributes “model"and “vendor" to the TPM.