'Message attack' presentation slideshows

Privacy in signatures. Hiding in rings, hiding in groups

488 views • 36 slides

Message authenticity: Digital Signatures

493 views • 31 slides

Message authenticity: Digital Signatures

315 views • 31 slides

Security Arguments for Digital Signatures and Blind Signatures

Security Arguments for Digital Signatures and Blind Signatures. Journal of Cryptology, (2000) 13: 361-396 Authors: D. Pointcheval and J. Stern Presented by J. Liu. Outline. Introduction Definitions The random oracle model Digital signature schemes Preliminaries

267 views • 26 slides

Cryptography and Network Security Chapter 13

283 views • 22 slides

Cryptography and Network Security Chapter 13

223 views • 22 slides

Digital Signatures (Ch. 13)

Digital Signatures (Ch. 13). Digital signatures ElGamal digital signature scheme Schnorr digital signature scheme Digital signature standard Summary. Requirements of digital signatures. The signature must be a bit-pattern that depends on the message being signed.

238 views • 22 slides

Cryptography and Network Security Chapter 13

Cryptography and Network Security Chapter 13. Fifth Edition by William Stallings Lecture slides by Lawrie Brown. Digital Signatures. have looked at message authentication but does not address issues of lack of trust digital signatures provide the ability to:

475 views • 18 slides

CS 5920 Applied Cryptography Spring 2014 Chapter 13 Digital Signatures

CS 5920 Applied Cryptography Spring 2014 Chapter 13 Digital Signatures. Cryptography and Network Security Fifth Edition, by William Stallings . Digital Signatures. have looked at message authentication but does not address issues of trust between two parties

370 views • 18 slides

Security Arguments for Digital Signatures and Blind Signatures

Security Arguments for Digital Signatures and Blind Signatures. Journal of Cryptology, (2000) 13: 361-396 Authors: D. Pointcheval and J. Stern Presented by J. Liu. Outline. Introduction Definitions The random oracle model Digital signature schemes Preliminaries

374 views • 15 slides

Lect. 15 : Digital Signatures RSA, ElGamal , DSA, KCDSA, Schnorr

Lect. 15 : Digital Signatures RSA, ElGamal , DSA, KCDSA, Schnorr. 1. Digital Signature. Digital Signature Electronic version of handwritten signature on electronic document Signing using private key (only by the signer) Verification using public key (by everyone)

136 views • 13 slides

Cryptography CS 555

Cryptography CS 555. Topic 21: Digital Schemes (1). Outline and Readings. Outline Digital signature RSA signatures Hash and sign Readings: Katz and Lindell: Chapter 12.1-12.4. Digital Signatures: The Problem.

258 views • 12 slides

CIS 5371 Cryptography

CIS 5371 Cryptography. 4 . Message Authentication Codes B ased on: Jonathan Katz and Yehuda Lindell Introduction to Modern Cryptography. Message Authentication Codes . Encryption vs message authentication Different functionalities

160 views • 0 slides