'Key distribution problem' presentation slideshows

Encryption & Cryptography

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Ciphers

Ciphers. Dan Fleck CS 469: Security Engineering. 1. 1. 1. These slides are modified with permission from Bill Young ( Univ of Texas). What is Good Encryption ?. The following are suggested as tests of worth for current cryptographic practice: is based on sound mathematics;

571 views • 46 slides

Introduction to Quantum Key Distribution

Introduction to Quantum Key Distribution. Gonen Krak. Classical Cryptography. Suppose Alice and Bob wish to communicate in the presence on an eavesdropper Eve A provably secure classical scheme exists for this, called the one-time pad. The One-Time Pad.

670 views • 40 slides

Cryptography A Brief History

541 views • 38 slides

Public Key Cryptography

Public Key Cryptography. Public Key Cryptography. why we might want to consider an alternative to a secret key system using key distribution, and what we're looking for in public key cryptography. Problem of Key Distribution. there is one difficultly inherent in all KDC mechanisms.

484 views • 35 slides

David Evans cs.virginia/~evans

358 views • 35 slides

Class 5

406 views • 29 slides

Certificates and network security

Certificates and network security. Aalto University , autumn 2013. Outline. X.509 certificates and PKI Network security basics: threats and goals Secure socket layer . Note : the SSL part overlaps with T-110.2100 course. X.509 certificates. Key distribution problem.

440 views • 25 slides

IEEE 802.11 Family

IEEE 802.11 Family. Dr. Muid Mufti ID Technologies Islamabad. 802.11 Variants. IEEE 802.11d Additional regulatory domains IEEE 802.11e for improved quality of service IEEE 802.11f to regulate inter-access point hand offs IEEE 802.11i to improve WLAN security IEEE 802.11n

566 views • 24 slides

Quantum Cryptography

Quantum Cryptography. Alok.T.J EC 11. Cryptography. Transmitting information with access restricted to the intended recipient even if the message is intercepted by others. Cryptography is of increasing importance

697 views • 23 slides

Introduction to Modern Cryptography Lecture 7

457 views • 21 slides

Protection authentication authorization confidentiality

Protection authentication authorization confidentiality. Crypto. Shared key k 1 = k 2 Public key k 1 ?k 2. (DES). (RSA). sign, verify. Security Primitives. encrypt, decrypt. Authentication Who is requesting? (same principal as before) Mesg that was sent = mesg recv. Model.

226 views • 10 slides