'32 bit word' diaporamas de présentation

Chapter3

Chapter3. Public-Key Cryptography and Message Authentication. OUTLINE. Approaches to Message Authentication Secure Hash Functions and HMAC Public-Key Cryptography Principles Public-Key Cryptography Algorithms Digital Signatures Key Management. Authentication.

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Hashes and Message Digest

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Network Security

Network Security. Lecture 3 Secret Key Cryptography http://web.uettaxila.edu.pk/CMS/coeCCNbsSp09/index.asp. Waleed Ejaz waleed.ejaz@uettaxila.edu.pk. Overview. Cryptography Data Encryption Standard (DES) International Data Encryption Algorithm (IDEA) Advanced Encryption Standard (AES)

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Network Security

Network Security. Lecture 2 Secret Key Cryptography http://web.uettaxila.edu.pk/CMS/coeCCNbsSp09/index.asp. Waleed Ejaz waleed.ejaz@uettaxila.edu.pk. Overview. Cryptography Data Encryption Standard (DES) International Data Encryption Algorithm (IDEA) Advanced Encryption Standard (AES)

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Floating Point

CPSC 252 Computer Organization Ellen Walker, Hiram College. Floating Point. Representing Non-Integers. Often represented in decimal format Some require infinite digits to represent exactly With a fixed number of digits (or bits), many numbers are approximated

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MD4

MD4. MD4. Message Digest 4 Invented by Rivest, ca 1990 Weaknesses found by 1992 Rivest proposed improved version (MD5), 1992 Dobbertin found 1st MD4 collision in 1998 Clever and efficient attack Nonlinear equation solving and differential. MD4 Algorithm. Assumes 32-bit words

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Instruction Set Architecture

Instruction Set Architecture. CSA 221 Chapter 4. Instruction Set Architecture. The Instruction Set Architecture (ISA) view of a machine corresponds to the machine and assembly language levels. Typical use: Compiler translates HLL to assembly

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ARM Architecture

ARM Architecture. Computer Organization and Assembly Languages Yung-Yu Chuang 2007/11/ 5. with slides by Peng-Sheng Chen, Ville Pietikainen. Announcements. Midterm exam on 11/12 Open-book (books, lecture notes and your own notes but not computers). ARM history.

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NAT/Firewall NSLP draft-ietf-nsis-nslp-natfw-06.txt

NAT/Firewall NSLP draft-ietf-nsis-nslp-natfw-06.txt. M. Stiemerling, H. Tschofenig, C. Aoun. Agenda. Mailing list discussion outcomes NATFW NSLP 06 updates Pending issues on issue tracker IETF 63 work plan. Mailing list discussions outcomes.

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