Computer Applet Links and Exercises

Chapter 2

Cryptogram solving tool link for Substitution Ciphers

Chapter 2 Substitution Cipher Example and Exercises



Chapter 5

Modular Arithmetic Calculator

Encryption/Decryption Shift Ciphers

Section 5.3 Shift Cipher Cryptanalysis Examples and Exercises

Encryption/Decryption Affine Ciphers

Section 5.5 Affine Cipher Cryptanalysis Examples and Exercises


Chapter 6

Encryption/Decryption Vigenere Ciphers

Friedman Test

Section 6.3 Friedman Test Examples and Exercises

Kasiski Test

Section 6.4 Kasiki Test Examples and Exercises

Internet Site For Breaking Vigenere Cipher

Section 6.5 Signature/Scrawl Examples and Exercises


Chapter 7

Extensive Modular Arithmetic Calculator

RSA Key Creation and Encryption