Contents

1. Integers 2. Congruences and Residue Class Rings 3. Encryption 4. Probability and Perfect Secrecy 5. DES 6. AES 7. Prime Number Generation 8. Public-Key Encryption 9. Factoring 10. Discrete Logarithms 11. Cryptographic Hash Functions 12. Digital Signatures 13. Other Systems 14. Identification 15. Secret Sharing 16. Public-Key Infrastructures