Public-Key Cryptosystems (PKCSv1.5)

After completing this experiment, you will be able to:

  1. Understand Public-Key Cryptography Concepts

    • Comprehend the fundamental principles of asymmetric encryption and decryption
    • Recognize the importance of public-private key pairs in cryptographic systems
    • Understand the mathematical foundations of RSA encryption and the role of modular arithmetic
  2. Master PKCS#1 v1.5 Operations

    • Perform encryption using the PKCS#1 v1.5 padding scheme with RSA
    • Execute decryption operations to recover original messages
    • Understand how padding schemes enhance security and prevent certain attacks
  3. Analyze RSA Key Management

    • Generate RSA key pairs with different bit lengths and public exponents
    • Understand the relationship between key parameters (n, e, d, p, q)
    • Evaluate the impact of key size on security and performance
  4. Explore Advanced RSA Parameters

    • Work with prime factors P and Q in RSA key generation
    • Understand the role of the Chinese Remainder Theorem in RSA optimization
    • Analyze the mathematical relationships between modulus, exponents, and prime factors
  5. Apply Practical Public-Key Cryptography

    • Implement RSA encryption/decryption operations using real parameters
    • Compare different key sizes and their security implications
    • Understand the practical challenges of public-key infrastructure
  6. Evaluate Cryptographic Security

    • Assess the security benefits of the PKCS#1 v1.5 padding scheme
    • Understand why padding is crucial for secure RSA implementation
    • Recognize the importance of proper key generation and management practices