By Dan Boneh (auth.), Xiaoyun Wang, Kazue Sako (eds.)
This publication constitutes the refereed court cases of the 18th foreign convention at the idea and alertness of Cryptology and data safeguard, Asiacrypt 2012, held in Beijing, China, in December 2012. The forty three complete papers awarded have been rigorously reviewed and chosen from 241 submissions. they're geared up in topical sections named: public-key cryptography, starting place, symmetric cipher, safeguard facts, lattice-based cryptography and quantity thought, hash functionality, cryptographic protocol, and implementation issues.
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Additional info for Advances in Cryptology – ASIACRYPT 2012: 18th International Conference on the Theory and Application of Cryptology and Information Security, Beijing, China, December 2-6, 2012. Proceedings
LNCS, vol. 5350, pp. 179–197. Springer, Heidelberg (2008) 28. : Practical Adaptive Oblivious Transfer from Simple Assumptions. In: Ishai, Y. ) TCC 2011. LNCS, vol. 6597, pp. 347–363. Springer, Heidelberg (2011) 29. : Simulation-Sound NIZK Proofs for a Practical Language and Constant Size Group Signatures. , Chen, K. ) ASIACRYPT 2006. LNCS, vol. 4284, pp. 444–459. Springer, Heidelberg (2006) 30. : Efficient Non-interactive Proof Systems for Bilinear Groups. P. ) EUROCRYPT 2008. LNCS, vol. 4965, pp.
KeyGen = KeyGenDF , Sign = SignDF A , Verify = Verify Our new secure signature scheme is identical to the dual form system except that we have arbitrarily chosen to use SignA as our signing algorithm. We could have equivalently elected to use SignB . (In which case, we would modify the dual-oracle invariance property to be with respect to Type II forgeries instead of Type I forgeries. ) Now we will prove that this signature scheme is secure. In the full version, we prove (the argument is rather straightforward): DF DF ) is a secure dual Theorem 1.
Applications. Structure-preserving signatures (SPS) have become a mainstay in cryptographic protocol design in recent years. From the many applications that benefit from efficient SPS based on simple assumptions, we list only a few recent examples. Using our SIG1 scheme from Section 5 both the construction of a group signature scheme with efficient revocation by Libert, Peters and Yung  and the construction of compact verifiable shuffles by Chase et al.  can be proven purely under the DLIN assumption.