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Title:
A Pairing-Based DAA Scheme Further Reducing TPM Resources
Authors: Ernie Brickell, Jiangtao Li
Abstract:Direct Anonymous Attestation (DAA) is an anonymous signature scheme designed for anonymous attestation of a Trusted Platform Module (TPM) while preserving the privacy of the device owner. Since TPM has limited bandwidth and computational capability, one interesting feature of DAA is to split the signer role between two entities: a TPM and a host platform where the TPM is attached. Recently, Chen proposed a new DAA scheme that is more efficient than previous DAA schemes. In this paper, we construct a new DAA scheme requiring even fewer TPM resources. Our DAA scheme is about 5 times more efficient than Chen’s scheme for the TPM implementation using the Barreto-Naehrig curves. In addition, our scheme requires much smaller size of software code that needs to be implemented in the TPM. This makes our DAA scheme ideal for the TPM implementation. Our DAA scheme is efficient and provably secure in the random oracle model under the strong Diffie-Hellman assumption and the decisional Diffie-Hellman assumption.
ePrint: https://eprint.iacr.org/2010/067
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