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Cryptographic Techniques, Security Vulnerabilities, and Protection Strategies In Computer Networks and Web Applications

A review of cryptographic techniques and security strategies for protecting web applications and computer networks.

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    Running Head: Outcome Assessment 1 Outcome Assessment Student 8/11/2015 Discuss various cryptographic techniques , security vulnerabilities , and attack methods related to computer networks and web applications. In your answer, address the following points: 1. Cryptographic Methods : o Explain the concept of transposition ciphers and provide an example. o Define Brute Force attacks and how they work in breaking encryption. o Discuss the transition from DES to AES encryption and the advantages of AES. o Explain the Attack Surface of an application and its significance in identifying vulnerabilities. o Describe Directory Traversal Attacks and the potential risks they pose. 2. Types of Computer Viruses and Malware : o List and explain Stealth , Multipartite , Polymorphic , and Worm viruses, along with the methods used to protect against them. 3. Encryption Algorithms : o Differentiate between symmetric encryption (stream and block ciphers) and asymmetric encryption algorithms. o Discuss the advantages and disadvantages of each encryption type.

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    Outcome Assessment 2 4. Application Layer Attacks : o Explain the following types of attacks and methods to defend against them:  ARP Spoofing  Botnets  Cache Poisoning  Computer Worms 5. Security Tools : o Describe at least three security tools that can be used to identify vulnerabilities in web applications, providing their functionalities. 6. Public Key Infrastructure (PKI) : o Explain the components and purpose of Public Key Infrastructure (PKI) in securing electronic transactions. Provide specific examples and detail how each of these security measures and techniques plays a role in protecting against various forms of cyberattacks. Word Count Requirement: 1000 - 1200 words.

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    Outcome Assessment 3 1 A. Transposition cipher type of cryptographic way creates cipher text with replacing individual character with one more from a “match - up list” a transposition cipher is a way of encryption with which the positions supposed by part s of plaintext are shifted stated to a usual system, consequently that the cipher text represent s a variation of the plaintext. B. Brute Force way of code breaking tries possible mixture s of characters in a try to “guess” the password and also key. Because Brute force attack is a try to guess a password with systematically attempt ing every possible mixture of letters, and also numbers, as well as symbols until you learn the one accurate mixture that works. C. AES encryption algorithm change d DES as the present standard because the Advanced Encryption Standard , as a substitute . The algorithm which was chooses as the AES was submitted with its designers below the name RIJNDAEL . D. The part of an application that is obtainable to client s (those who are genuine along with those who are not) is recognized as its attack outside . Attack Surface study is regarding mapping out what element s of a system require to be reviewed as well as tested for protection vulnerabilities. And also the point of Attack outside study is to understand the threat part s in an application, to create developers as well as protection specialists conscious of what element s of the application are release to attack, as well as also to discover ways of reducing this, along with to notice when as well as how the Attack outside transform s . E. When an attacker increase s access to restricted listing ( like as the root listing ) through HTTP it is described directory traversal bother . Directory traversal attacks are usually performed apply ing Web browsers. Some server in which input information from Web browsers is not confirmed is vulnerable to this kind of attack. (Kamal, 2014) 2. Four sorting s of viruses as well as the methods applied to defeat them

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