Download e-book for iPad: Cryptography and Network Security: Principles and Practice by William Stallings

By William Stallings

ISBN-10: 0133354695

ISBN-13: 9780133354690

For one-semester, undergraduate- or graduate-level classes in Cryptography, laptop safeguard, and community safety. The e-book is appropriate for self-study and so offers a pretty good and up to date educational. The e-book is usually a entire remedy of cryptography and community defense and so is appropriate as a reference for a approach engineer, programmer, procedure supervisor, community supervisor, product advertising group of workers, or approach help specialist.

A useful survey of cryptography and community protection with unrivaled help for teachers and students

In this age of common digital connectivity, viruses and hackers, digital eavesdropping, and digital fraud, safeguard is paramount. this article presents a pragmatic survey of either the rules and perform of cryptography and community protection. First, the elemental matters to be addressed via a community safeguard strength are explored via an academic and survey of cryptography and community safety expertise. Then, the perform of community safety is explored through functional functions which have been applied and are in use this present day. An remarkable aid package deal for teachers and scholars guarantees a profitable instructing and studying experience.

New issues for this variation comprise SHA-3, key wrapping, elliptic curve electronic signature set of rules (ECDSA), RSA probabilistic signature scheme (RSA-PSS), Intel’s electronic Random quantity Generator, cloud defense, community entry keep an eye on, own id verification (PIV), and cellular gadget safeguard.

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Additional info for Cryptography and Network Security: Principles and Practice (6th Edition)

Example text

1 Types of Attacks on Encrypted Messages Type of Attack Known to Cryptanalyst Ciphertext Only • Encryption algorithm • Ciphertext Known Plaintext • Encryption algorithm • Ciphertext • One or more plaintext–ciphertext pairs formed with the secret key Chosen Plaintext • Encryption algorithm • Ciphertext • Plaintext message chosen by cryptanalyst, together with its corresponding ciphertext generated with the secret key Chosen Ciphertext • Encryption algorithm • Ciphertext • Ciphertext chosen by cryptanalyst, together with its corresponding decrypted plaintext generated with the secret key Chosen Text • Encryption algorithm • Ciphertext • Plaintext message chosen by cryptanalyst, together with its corresponding ciphertext generated with the secret key • Ciphertext chosen by cryptanalyst, together with its corresponding decrypted plaintext generated with the secret key circumstances is the brute-force approach of trying all possible keys.

Replay involves the passive capture of a data unit and its subsequent retransmission to produce an unauthorized effect (paths 1, 2, and 3 active). Modification of messages simply means that some portion of a legitimate message is altered, or that messages are delayed or reordered, to produce an unauthorized effect (paths 1 and 2 active). ” The denial of service prevents or inhibits the normal use or management of communications facilities (path 3 active). , the security audit service). Another form of service denial is the disruption of an entire network, either by disabling the network or by overloading it with messages so as to degrade performance.

Examples include the encryption of the message, which scrambles the message so that it is unreadable by the opponent, and the addition of a code based on the contents of the message, which can be used to verify the identity of the sender. • Some secret information shared by the two principals and, it is hoped, unknown to the opponent. 6 A trusted third party may be needed to achieve secure transmission. 2 Model for Network Security 6 Part Two discusses a form of encryption, known as a symmetric encryption, in which only one of the two principals needs to have the secret information.

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Cryptography and Network Security: Principles and Practice (6th Edition) by William Stallings


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