Improved Direct Anonymous Attestation with Less Trusted Platform Module Computation
| Autor: | Wen-Yang Hsu, 許文洋 |
|---|---|
| Rok vydání: | 2016 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 104 With rapid development of electronic service, service provider must confirm user's computing platform whether it is trustworthy that protects digital product from being abused. Trusted computing group makes efforts to establish a trusted computing platform through a tamper-resistant cryptographic chip, namely trusted platform module (TPM). The TPM, which is embedded on the motherboard of a host platform, measures the software and hardware configurations and stores the measurement results in internal registers. Remote attestation enables a verifier (i.e., service provider) to request a prover (i.e., user's computing platform with TPM) which returns the measurement results used for justifying the trustworthiness. However, a classical remote attestation scheme did not considerthe user's privacy that allows the verifier to learn information about all user's transactions on the Internet. Direct anonymous attestation (DAA) scheme, which was first proposed by Brickell et al., is a promising solution used to address the privacy issues without employing an on-line trusted third party (i.e., an on-line certificate authority). However,the Brickell et al. DAA scheme incurs a considerably computational overhead for a resource-constraint TPM. Chen proposed a lightweight DAA scheme requiring less TPM computation. In this thesis, we propose an improved DAA scheme based on the Chen's DAA scheme, and our proposed DAA scheme is more efficient than the Chen's DAA scheme in computational complexity of the TPM. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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