Digital Signatures Scheme
After completing this experiment, you will be able to:
Understand Digital Signature Fundamentals
- Comprehend the basic principles of digital signatures and their role in cryptographic security
- Recognize the importance of authentication, integrity, and non-repudiation in digital communications
- Understand why digital signatures are essential for secure electronic transactions
Master Digital Signature Operations
- Perform hash generation using SHA-1 algorithm on plaintext messages
- Execute RSA-based digital signature creation using private keys
- Understand the relationship between hash functions and digital signature schemes
Analyze RSA Key Parameters
- Compare different RSA key sizes (512-bit vs 1024-bit) and their security implications
- Understand the significance of different public exponents (3 vs 65537/F4)
- Evaluate the trade-offs between key size and computational efficiency
Develop Cryptographic Implementation Skills
- Apply the complete digital signature process from plaintext to signature
- Convert between different encoding formats (hexadecimal and base64)
- Troubleshoot common issues in digital signature implementation
Apply Practical Knowledge
- Implement digital signature operations step-by-step
- Solve real-world authentication and integrity challenges
- Evaluate the security and practical applications of RSA-based digital signatures
- Software distribution (code signing)
- Financial transactions
Appreciate Cryptographic Workflow: Understand the step-by-step process from plaintext message to verifiable digital signature.
Connect Theory to Practice: Bridge the gap between theoretical cryptographic concepts and their practical implementation in digital signature systems.