Cisco Designing VPN Security by PDF

Read Online or Download Cisco Designing VPN Security PDF

Best network security books

Download e-book for kindle: Network Sales and Services Handbook by Matthew J Castelli

A technical guide for community revenues and customer support personnelNetwork revenues and prone guide covers the following:* Foundational thoughts and discussions of ways networks interconnect* The OSI version and its primary value for relocating info among pcs on an internetwork* buyer premises apparatus, together with a dialogue of typically discovered at a shopper web site* Threats to a community and techniques for safeguarding a community opposed to such threats* thoughts of geographical networks and the three-tiered community hierarchy* QoS and a network's potential to supply larger provider to choose community site visitors over a number of internetworking applied sciences* equipment to be had to distant clients for securely having access to organizational assets* Public switched phone community prone and purchaser entry* Multiprotocol Label Switching (MPLS) and the way it truly is utilized in a community spine* the basics of fiber-optic networks, together with Synchronous Optical Networks and Dense Wave department MultiplexingOne of the main major demanding situations in any technical association is wisdom move: getting the data from these "in the comprehend" (network engineers or experts) to these at the "front strains" (those people who are promoting and helping a client's community services).

Buffer Overflow Attacks: Detect, Exploit, Prevent - download pdf or read online

The SANS Institute continues an inventory of the "Top 10 software program Vulnerabilities. on the present time, over half those vulnerabilities are exploitable by means of Buffer Overflow assaults, making this classification of assault some of the most universal and most deadly weapon utilized by malicious attackers. this can be the 1st publication particularly aimed toward detecting, exploiting, and combating the most typical and unsafe assaults.

Information security management handbook by Harold F. Tipton, Micki Krause Nozaki PDF

On account that 1993, the data defense administration guide has served not just as a regular reference for info safeguard practitioners but in addition as a tremendous record for accomplishing the serious assessment essential to arrange for the qualified details procedure safety specialist (CISSP) exam.

Thomas Müller, Thomas Caspers's Trusted Computing Systeme: Konzepte und Anforderungen PDF

Der Begriff relied on Computing umschreibt eine Reihe neuer Ansätze zur Verbesserung der Computersicherheit durch den Aufbau von Computersystemen aus vertrauenswürdigen undefined- und Softwarekomponenten. Das Buch liefert erstmals einen umfassenden Überblick über die unterschiedlichen Konzepte des depended on Computing und ermöglicht dadurch einen einfachen Einstieg in das komplexe Thema.

Additional resources for Cisco Designing VPN Security

Sample text

0—1-1-11 Block Ciphers Block ciphers (encryption algorithms) transform a fixed-length block of plaintext into a block of ciphertext of the same length. Applying the reverse transformation to the ciphertext block, using the same secret key, results in decryption. The fixed length (block size) for many block ciphers is now typically 128 bits (Data Encryption Standard [DES] has a block size of 64 bits). Block algorithms always almost result in output data being larger than input data, as they need to work on chunks of specific sizes, and the length of ciphertext is therefore a multiple of the block size.

0 Copyright © 2003, Cisco Systems, Inc. RSA Basics • Each entity has two keys: – Public key (can be published) – Private key (must be kept secret) • It is not feasible to determine the private key from the public key. • One key encrypts, the other key decrypts a message. • Those keys are long-term (months/years). © 2003, Cisco Systems, Inc. All rights reserved. 0—1-1-30 The RSA algorithm is based on the fact that each entity has two keys, a public key and a private key. The public key can be published and given away, but the private key must be kept very secret.

That is, instead of applying subkeys 1 to 16, subkeys 16 to 1 are applied. Copyright © 2003, Cisco Systems, Inc. Encryption 1-1-21 One DES Round © 2003, Cisco Systems, Inc. All rights reserved. 0—1-1-16 The figure illustrates how the right half (32 bits) of the initial 64-bit block in the previous figure moves through one of the 16 DES rounds. DES provides it security by mixing the bits of the key with the bits of the data in a deterministic manner. Notice that the block expands and contracts as it moves through the round.

Download PDF sample

Cisco Designing VPN Security

by Kenneth

Rated 4.28 of 5 – based on 20 votes