Lab 5 (29/03/2023)

Problems for lab session:

Demo of Assignment-4…

Practicals

Use the following plaintext for encryption in the following questions:

Plaintext: 2210ModernCrypto

Part-1:

1. Define a function LinearCongruentialGenerator() to generate Pseudo-Random Numbers (PRNs) with the following properties:

   • It MUST generate 8-digit PRNs
   • Seed should be your Roll Number
   • Generate 2 random numbers using LinearCongruentialGenerator()

2. Create a function Compress_M2N(mDigitBinNum, M, N) to compress a given M-bit binary string to N-bit with the following constraints:

   • M > N
   • Must operate on binary-string of even length (for both M and N)
   • It should create and use a p X q size table (here p = # rows, q = # columns) for the number generation, where
     • q = 2^N
     • p * q = 2^M

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