School of Computer, China University of Mining and Technology Xuzhou, 221116, China; National Mobile Communications Research Laboratory, Southeast University Nanjing, 210096, China

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Abstract—Privacy is the claim of individuals, groups and institutions to determine for themselves, when, how and to what extent information about them is communicated to others. How to leak authoritative secrets in an elegant way? The paper aims to solve this problem. The desired security properties i.e. Semantic-Security; Recipient-Designation; Verification-Dependence; Designated-Verifier Signature- Verifiability; Public Signature-Verifiability; Recipient- Ambiguity; Designated-Verifier Recipient-Verifiability; Public Recipient-Verifiability; Signer-Ambiguity; Signer- Verifiability are specified in secret leakage. Based on Chow- Yiu-Hui’s ID-based ring signature scheme and techniques of zero-knowledge proof, an ID-based controlled secret leakage scheme is proposed. The proposed scheme satisfies all specified security properties and can be used in trust negotiation.

Index Terms—Privacy, ring signature, authenticated encryption, zero-knowledge proof.

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Cite: Tianjie Cao, Shi Huang, Hui Cui, Yipeng Wu, Qihan Luo, "Controlled Secret Leakage," Journal of Computers vol. 4, no. 1, pp. 61-68, 2009.