COSC2536 - Security In Computing And Information Technology - IT Assignment Help

Assignment Task

Overview 
The objective of Assignment 1 is evaluating your knowledge on the topics covered in Lecture 1-4. Topics include Basic  Cryptographic Techniques, and Public-Key Cryptography (RSA, ElGamal and Paillier cryptosystems). Assignment 1 will  focus on developing your abilities in application of knowledge, critical analysis and decision making. Assignment 1 contains  several problems related to the topics mentioned above. You are required to prepare the solutions and upload them as a  single PDF or Word document in CANVAS. In this assignment, there are 5 (five) questions in total. The first question Q1 is on designing a cryptographic algorithm  for a secure vault with a sophisticated digital keypad. In this question, a scenario is given that describes how a secret key  for the digital keypad is generated and the digital keypad works. You need to design an algorithm that satisfies the  requirements of the security of the digital keypad. The second question Q2 is about designing an algorithm to perform cryptanalysis on a captured encrypted text. The term  Cryptanalysis is used to breach cryptographic security systems and gain access to the contents of encrypted messages,  even if the cryptographic key is unknown. Therefore, you are expected to apply cryptanalysis in order to obtain plaintext  from the given ciphertext in Q2. The second question Q3 is about the designing a Secure Online Property Auction System using the hash The fourth question Q4 is related to breaking the RSA Encryption algorithm. In this question, you are expected to perform  prime factorization to break RSA private-key d from the public-key (n, e). You should demonstrate the detail steps with  explanations how the RSA encryption algorithm can be broken. Marks will be deducted if you fail to show the detail  computation correctly, skip the computation steps, or do not provide explanations. The fifth question Q5 is about a real-life application of Public-Key cryptography. In this question, you are expected to show  how RSA and ElGamal Public-Key Cryptography techniques can be used in secure smart door. You should demonstrate  the detail steps with explanations how the RSA and ElGamal encryption and decryption work in the given context. Marks  will be deducted if you fail to show the detail computation correctly, skip the computation steps, or do not provide  explanations. 
 

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