'Enc pk' diaporamas de présentation

Detecting Dangerous Queries:

Detecting Dangerous Queries:. A New Approach for Chosen Ciphertext Security. Susan Hohenberger. Allison Lewko. Brent Waters. SK. PubK. Public Key Encryption [DH76,RSA78,GM84]. Passive Attacker : Chosen Plaintext Attack (CPA). SK. PubK. Active Attackers [NY90,DDN91,RS91].

593 views • 41 slides

Homomorphic Encryption Tutorial

754 views • 34 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

Public Key Cryptography & Password Protocols

Public Key Cryptography & Password Protocols. -Rashmi Kukanur. Outline. Study of protocols in assymetric scenarios Present and analyze password protocols Provide authentication and security features Public passwords. User Authentication Methods. Based on Something user knows (password)

316 views • 22 slides