By André Perez
Read Online or Download Network Security PDF
Best network security books
IPSec, moment version is the main authoritative, finished, available, and updated consultant to IPSec expertise. best experts conceal all elements of IPSec structure, implementation, and deployment; assessment vital technical advances because IPSec was once first standardized; and current new case reviews demonstrating end-to-end IPSec safeguard.
SpringerBriefs current concise summaries of state of the art learn and useful purposes throughout a large spectrum of fields. that includes compact volumes of fifty to a hundred pages (approximately 20,000- 40,000 words), the sequence covers more than a few content material from expert to educational. Briefs permit authors to provide their principles and readers to take in them with minimum time funding.
Unified Communications Forensics: Anatomy of universal UC assaults is the 1st booklet to provide an explanation for the problems and vulnerabilities and reveal the assaults, forensic artifacts, and countermeasures required to set up a safe (UC) surroundings. This e-book is written through major UC specialists Nicholas provide and Joseph W.
Community defense is a truly advanced enterprise. The Cisco snap shots Firewall plays a few very particular services as a part of the safety procedure. you will need to to be acquainted with many networking and community protection suggestions earlier than you adopt the CSPFA certification. This booklet is designed for safety execs or networking pros who're attracted to starting the safety certification technique.
Additional resources for Network Security
2. AES algorithm The advanced encryption standard (AES) algorithm is a symmetrical block algorithm. It operates on 128-bit data blocks and uses keys 128 bits, 192 bits, or 256 bits in length. The 16-byte data input block is represented by a four-line by four-column table, with each cell containing a byte. Input data: 32 43 f6 a8 88 5a 30 8d 31 31 98 a2 e0 37 07 34 The 16-byte key is represented by a four-line by fourcolumn table, with each cell containing a byte. Introduction to Cryptography 7 Initial 128-bit key: 2b 7e 15 16 28 ae d2 a6 ab f7 15 88 09 cf 4f 3c An exclusive OR is executed between the input data and the initial key.
7 shows the e primary iteration of the SH HA-2 algorrithm. 7. Primaryy iteration of the t SHA-2 alg gorithm Th he operating princip ple pertain ning to eacch iteration n is identtical for all a of the algorithmss in the SHA-2 S fam mily. How wever, these e algorithm ms differ in the t followin ng ways: – the SHA-2 256 and SHA-224 S allgorithms use a spe ecific initia alization ve ector; 20 Network Security – the SHA-512, SHA-384 and SHA-512/256 algorithms use a specific initialization vector; – the SHA-256 and SHA-224 algorithms, on the one hand, and the SHA-512, SHA-384 and SHA-512/256 algorithms, on the other hand, use Boolean functions (Ch, Ma), rotation operations (Σ0, Σ1), and specific k[i] constants.
Filling is always executed, even if the message is already congruent to 448 bits modulo 512. The filling value therefore varies from 1 to 512 bits. Filling is executed as follows: – the final filling bit is set at one; – the other filling bits are set at zero. The length of the data block is coded on 64 bits. This field is added to the structure previously defined so as to obtain 512-bit data blocks. 14 Network Security Calculation of the digest is based on registers A, B, C and D, which are 32 bits in length.