'Random oracle model' presentation slideshows

Leakage-Resilient Cryptography

629 views • 43 slides

Chosen-Ciphertext Security from Identity-Based Encryption

505 views • 28 slides

Information Integrity and Message Digests

467 views • 27 slides

Realizing Hash and Sign Signatures under Standard Assumptions

398 views • 25 slides

GSM CLONING

GSM CLONING. GSM (Global System for Mobile Communication). Most widely used cellular mobile phone system. First digital system to follow analog era. Specification designed by GSM Consortium in secrecy. Relied on Security by Obscurity. Distributed on need-to-know basis.

397 views • 25 slides

Non-Malleable Hash Functions

Non-Malleable Hash Functions. FORMACRYPT, 2007 Alexandra Boldyreva David Cash Marc Fischlin Bogdan Warinschi. Non-Malleability. Intuition Given instance f(x) does not help to find f(x*) for related x*. this is a very good test. Non-Malleability. Example 1

352 views • 23 slides

Leakage-resilient Signatures

345 views • 22 slides

Ciphertext-Policy, Attribute-Based Encryption

Ciphertext-Policy, Attribute-Based Encryption. Brent Waters SRI International. John Bethencourt CMU. Amit Sahai UCLA. What is Ciphertext-Policy Attribute-Based Encryption (CP-ABE)?. Type of identity-based encryption One public key

811 views • 21 slides

HMQV: A High-Performance Secure * Diffie-Hellman Protocol

903 views • 20 slides

Message Authentication Code

Message Authentication Code. July 2011. Message Authentication Problem. Message Authentication is concerned with: protecting the integrity of a message validating identity of originator How to detect changes by adversary to message? Ancient solution : sign and seal

617 views • 18 slides

Weaknesses in the Generic Group Model

346 views • 17 slides

Provable Data Possession at Untrusted Stores

418 views • 6 slides