'Conventional encryption' diaporamas de présentation

Network Security

Network Security. Section 1: Introduction to Network Security. Text Books. Network Security: Private Communication in a Public World, Charlie Kaufman, Pearson Education Inc., 2002

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Network Security

Network Security. The security problems in the networks may be subdivided in four cathegories : confidentiality authenticity non repudiation integrity confidentiality : requires that information sent on the network only be accessible for reading to authorized parts .

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Chapter 4

Chapter 4. Authentication Applications. Outline. Security Concerns Kerberos X.509 Authentication Service. Security Concerns. key concerns are confidentiality and timeliness to provide confidentiality must encrypt identification and session key info

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Network Security

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Network Security ( An Overview)

Network Security ( An Overview). Security Threats. Passive attacks Eavesdropping on, or monitoring, transmissions Electronic mail, file transfers, and client/server exchanges are examples of transmissions that can be monitored Active attacks Modification of transmitted data

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Chapter 2 Symmetric Encryption and Message Confidentiality

Chapter 2 Symmetric Encryption and Message Confidentiality. Slides by H. Johnson & S. Malladi - Modified & Translated by Sukchatri P. ICT, University of Phayao , Thailand. Overview. Conventional Encryption Principles Conventional Encryption Algorithms Cipher Block Modes of Operation

747 views • 41 slides

Chapter 2 Symmetric Encryption and Message Confidentiality

Chapter 2 Symmetric Encryption and Message Confidentiality. Slides by H. Johnson & S. Malladi - Modified & Translated by Sukchatri P. ICT, University of Phayao , Thailand. Overview. Conventional Encryption Principles Conventional Encryption Algorithms Cipher Block Modes of Operation

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Pretty Good Privacy (PGP)

Pretty Good Privacy (PGP). Pretty Good Privacy (PGP). PGP is a remarkable phenomenon. Largely the effort of a single person, Phil Zimmermann, PGP provides a confidentiality and authentication service that can be used for electronic mail and file storage applications. a fully

1.32k views • 37 slides

Cryptography

Cryptography. Cryptography is the technique of secret writing. A cipher is a method of secret writing. The purpose is to convert an intelligible message, referred to as plaintext, into apparently random nonsense text, referred to as ciphertext.

6.33k views • 36 slides

Outsourcing Search Services on Private Spatial Data

Outsourcing Search Services on Private Spatial Data. Man Lung Yiu , Gabriel Ghinita , Christian Jensen, and Panos Kalnis Presenter: Uma Kannan. Before we start: Security Attacks.

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Conventional Encryption & Message Confidentiality

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Conventional Encryption

Conventional Encryption. Outline. Conventional Encryption Principles Conventional Encryption Algorithms Cipher Block Modes of Operation Location of Encryption Devices Key Di s tribution. Symmetric Encryption. A.k.a. conventional / secret -key / single-key

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Chapter 20: Network Security

Chapter 20: Network Security. Business Data Communications, 4e. Security Threats. Passive attacks Eavesdropping on, or monitoring, transmissions Electronic mail, file transfers, and client/server exchanges are examples of transmissions that can be monitored Active attacks

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Computer Data Security & Privacy

Computer Data Security & Privacy. Lecture # 3 Symmetric & A Symmetric Encryption. Some Basic Terminology. Plaintext - original message Ciphertext - coded message Cipher - algorithm for transforming plaintext to ciphertext Key - info used in cipher known only to sender/receiver

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Dr. Shaoen Wu School of Computing networks.csm Shaoen.wu@usm

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Fluency with Information Technology Lawrence Snyder

Fluency with Information Technology Lawrence Snyder. Chapter 17 Privacy & Digital Security Encryption. Encryption And Decryption. Encryption Terminology Encryption : Transform representation so it is no longer understandable Cryptosystem : A combination of encryption and decryption methods

287 views • 15 slides

CPSC 3730 Cryptography

CPSC 3730 Cryptography. Chapter 1 Introduction. CPSC 3730 Cryptography and Network Security. Chapter 2 Classical Encryption Techniques. Fig 1.2 Model of Conventional Encryption.

141 views • 3 slides