论文信息 - Threshold Proxy Re-Signature

Threshold Proxy Re-Signature

The focus of this paper is to design an efficient and secure solution addressing the key escrow problem in proxy re-signature schemes, i.e., the proxy knows the user's private key, which damages the essential requirement - "non-repudiation" property of proxy re-signature schemes. In this paper, we first define the security model for threshold proxy re-signature scheme, and then propose two threshold proxy re-signature schemes based on Ateniese's (see ACM CCS, p.310-319, 2005) and Shao Jun's (see Progress in Cryptology - INDOCRYPT 2007, vol.4859 of LNCS, p.197-209, 2007) approach. To our knowledge, there is no threshold proxy re-signature scheme that has been formally presented yet.

Xiaolei Dong | Zhenfu Cao | Piyi Yang

[1] Adi Shamir,et al. How to share a secret , 1979, CACM.

[2] Shai Halevi,et al. Secure Hash-and-Sign Signatures Without the Random Oracle , 1999, EUROCRYPT.

[3] Matthew K. Franklin,et al. Identity-Based Encryption from the Weil Pairing , 2001, CRYPTO.

[4] Ran Canetti,et al. Chosen-ciphertext secure proxy re-encryption , 2007, CCS '07.

[5] Susan Hohenberger,et al. Proxy re-signatures: new definitions, algorithms, and applications , 2005, CCS '05.

[6] Matt Blaze,et al. Divertible Protocols and Atomic Proxy Cryptography , 1998, EUROCRYPT.

[7] Xiaohui Liang,et al. Proxy Re-signature Schemes Without Random Oracles , 2007, INDOCRYPT.

[8] Alvaro A. Cárdenas,et al. Towards a secure and interoperable DRM architecture , 2006, DRM '06.

[9] Matthew Green,et al. Improved proxy re-encryption schemes with applications to secure distributed storage , 2006, TSEC.

[10] Matthew Green,et al. Identity-Based Proxy Re-encryption , 2007, ACNS.

[11] Benoît Libert,et al. Multi-use unidirectional proxy re-signatures , 2008, CCS.