'Way function' diaporamas de présentation

Distributed Security -- Issues & Technology Solutions

Distributed Security -- Issues & Technology Solutions. Learning Objectives. Clarify need for distributed security (what are we trying to protect?) Identify fundamental security objectives Review basic network attacks Classify typical attackers Examine technical safeguards

784 views • 66 slides

Session 4

Session 4. Asymmetric ciphers. Contents. Definition of asymmetric (public key) ciphers Applications of asymmetric ciphers The public key encipherment procedure The RSA public key cipher system. KEY. KEY. encipher. Ciphertext. decipher. Plaintext. Plaintext. A. B. Cryptanalysis.

737 views • 61 slides

Computer Security Authentication in Distributed Systems

677 views • 46 slides

Authentication Approaches over Internet

Authentication Approaches over Internet. Jia Li jl3272@columbia.edu. What is authentication? Authentication is a process by which the identity of a user accessing a network or other source of information is verified. Why do we need authentication?

413 views • 23 slides

EMBEDDED SECURITY

EMBEDDED SECURITY. EEN 417 Fall 2013. 9 /6/13, Dr. Eric Rozier , V1.0, ECE Thanks to Edward Lee and Sanjit Seshia of UC Berkeley. SECURITY. Compare with:

290 views • 21 slides

Kerberos: Structure

User (U). Kerberos Server (K). Ticket Granting Server (tgs). Client (C). user secret key database. server secret key database. Server. Kerberos: Structure. Requirements: each user has a private password known only to the user

234 views • 6 slides