Rsa assumption - PowerPoint PPT Presentation

Cryptography

Cryptography. Lecture 18. Q and A; b ring the written answers to TA before the class. 1. Section 8.1.3 and section 8.1.4 are very important. Please do read them and remember all theorems and corollaries. 2. What is a group exponentiation?

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On the (In)Security of RSA Signatures

On the (In)Security of RSA Signatures. Yevgeniy Dodis Iftach Haitner Aris Tentes. Signature Schemes. Triplet of efficient algorithms (Gen,Sign,Ver) Gen (1 k ): s,v Sign s (m): ¾ Ver v (m, ¾ ): 0/1 Correctness and existential unforgability Key criteria: Efficiency /Simplicity

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