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EMTM 553: E-commerce Systems Lecture 6: Basic Cryptography

Jun 18, 2013

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4/20/01. EMTM 553. 2. Outline. How cryptography worksSecrete key cryptographyPublic key cryptographyDigital signatureMessage digestDistribution of public keysReal-world systems. 4/20/01. EMTM 553. 3. Cryptography: Basic Terminology. Plaintext (or cleartext)The message.Denoted by M or P.Encryption (encipher)Encoding of message.Denoted by E.CiphertextEncrypted message.Denoted by C.Decryption (decipher)decoding of ciphertextdenoted by D..

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EMTM 553: E-commerce Systems Lecture 6: Basic Cryptography

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EMTM 553 Electronic Commerce Systems

EMTM 553 Electronic Commerce Systems. Insup Lee Department of Computer and Information Science University of Pennsylvania lee@cis.upenn.edu www.cis.upenn.edu/~lee. March 9, 2001. Instructor: Insup Lee Office hours: 4:30-5:30 Friday after class

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Public Key Cryptography

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AMA University

AMA University. Course code: ABI 204 Introduction to E-Commerce Chapter 7: Payment Systems for Electronic Commerce. Objectives . In this chapter, you will learn about: The basic functions of payments systems that are used in electronic commerce

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Cryptography and Cryptanalysis. Reference Matt Bishop, Computer Security , Addison Wesley, 2003. Cryptography and Cryptanalysis (p.2). Cryptography The art and science of concealing meaning. The basic component of cryptography is a cryptosystem . Cryptanalysis The breaking of codes.

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Lecture 8 Term 2. 28/2/12. Management Information Systems Chapter 10 E-Commerce: Digital Markets, Digital Goods. Electronic Commerce. B2B e-commerce: New efficiencies and relationships Electronic data interchange (EDI)

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CRYPTOGRAPHY &amp; NETWORK SECURITY. Introduction and Basic Concepts Eng. Wafaa Kanakri Computer Engineering Umm Al- Qura University. CRYPTOGRAPHY &amp; NETWORK SECURITY. Textbook: W. Stallings. Cryptography &amp; Network Security, Fifth Edition. Overview of Cryptography &amp; Its Applications.

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Cryptography Basics ( ch 2)

Cryptography Basics ( ch 2). IT443 – Network Security Administration Instructor: Bo Sheng. Outline. Basic concepts in cryptography system Secret key cryptography Public key cryptography Hash functions. Encryption/Decryption. Plaintext: a message in its original form

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Lecture 24 Cryptography. CPE 401 / 601 Computer Network Systems. slides are modified from Jim Kurose and Keith Ross and Dave Hollinger. Cryptography. Encryption Scramble data so that only someone with a secret can make sense of the data. Decryption Descrambling encrypted data. K. K.

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COM 5336 Cryptography Lecture 6 Public Key Cryptography &amp; RSA. Scott CH Huang. COM 5336 Cryptography Lecture 6. Outline. One-way Trapdoor functions Basic Number Theory for RSA RSA Digital Signatures. One-Way Trapdoor Functions. One-Way Functions.

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Lecture 02 Symmetric Cryptography 1. Dr. Supakorn Kungpisdan supakorn@mut.ac.th. Roadmap. Overview of Cryptography Types of Cryptography Symmetric Cryptography Classical Cryptographic Techniques Block Ciphers Modern Cryptographic Techniques. Basic Terminology.

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EMTM 553: E-commerce Systems Lecture 6: Basic Cryptography

EMTM 553: E-commerce Systems Lecture 6: Basic Cryptography

Presentation Transcript

EMTM 553 Electronic Commerce Systems

Introduction to Cryptography

Public Key Cryptography

AMA University

Cryptography and Cryptanalysis

lecture 3 : systems and ST this lecture introduces basic systems and systems thinking concepts:

Lecture 8 Term 2

CRYPTOGRAPHY &amp;amp; NETWORK SECURITY

Cryptography Basics ( ch 2)

Security+ Guide to Network Security Fundamentals, Third Edition

Cryptography

Lecture 24 Cryptography

E-Commerce

Lecture 2.3: Private Key Cryptography III

COM 5336 Cryptography Lecture 6 Public Key Cryptography &amp;amp; RSA

Lecture 02 Symmetric Cryptography 1

Cryptography

CSC 474 Information Systems Security

Cryptography

Lecture 5 Quantum Information 1: Quantum Communication &amp;amp; Quantum Cryptography

COS 433: Cryptography

Signals and Systems Lecture 3

CRYPTOGRAPHY & NETWORK SECURITY

COM 5336 Cryptography Lecture 6 Public Key Cryptography & RSA

Lecture 5 Quantum Information 1: Quantum Communication & Quantum Cryptography