Improving the Exact Security of Fiat-Shamir Signature Schemes

作者: Silvio Micali , Leonid Reyzin

DOI: 10.1007/3-540-46701-7_15

关键词: Computer securityPublic-key cryptographyCommunication complexityDigital signatureConcrete securityComputer scienceSignature (logic)Information protection policyTheoretical computer science

摘要: We provide two contributions to exact security analysis of digital signatures: 1. put forward a new method constructing Fiat-Shamir-like signature schemes that yields better "exact security" than the original Fiat-Shamir method; and 2. extend cost-security by showing with "loose may be preferable for reasonable measures cost.

参考文章(29)
Kazuo Ohta, Tatsuaki Okamoto, On Concrete Security Treatment of Signatures Derived from Identification international cryptology conference. pp. 354- 369 ,(1998) , 10.1007/BFB0055741
Mihir Bellare, Sara K. Miner, A Forward-Secure Digital Signature Scheme international cryptology conference. pp. 431- 448 ,(1999) , 10.1007/3-540-48405-1_28
Victor Shoup, On the security of a practical identification scheme theory and application of cryptographic techniques. pp. 344- 353 ,(1996) , 10.1007/3-540-68339-9_30
Oded Goldreich, Two remarks concerning the Goldwasser-Micali-Rivest signature scheme international cryptology conference. pp. 104- 110 ,(1987) , 10.1007/3-540-47721-7_8
Tatsuaki Okamoto, Provably Secure and Practical Identification Schemes and Corresponding Signature Schemes international cryptology conference. pp. 31- 53 ,(1992) , 10.1007/3-540-48071-4_3
Silvio Micali, Adi Shamir, An improvement of the Fiat-Shamir identification and signature scheme international cryptology conference. pp. 244- 247 ,(1988) , 10.1007/0-387-34799-2_18
Amos Fiat, Adi Shamir, How to prove yourself: practical solutions to identification and signature problems international cryptology conference. ,vol. 263, pp. 186- 194 ,(1987) , 10.1007/3-540-47721-7_12
C. P. Schnorr, Security of 2^t-Root Identification and Signatures international cryptology conference. pp. 143- 156 ,(1996) , 10.1007/3-540-68697-5_12
Ueli Maurer, Stefan Wolf, Towards Characterizing When Information-Theoretic Secret Key Agreement Is Possible international cryptology conference. pp. 196- 209 ,(1996) , 10.1007/BFB0034847
Louis Claude Guillou, Jean-Jacques Quisquater, A Paradoxical Indentity-Based Signature Scheme Resulting from Zero-Knowledge international cryptology conference. pp. 216- 231 ,(1988) , 10.1007/0-387-34799-2_16