Author(s): Janet Beissinger, Vera Pless
Publisher: A K Peters
Year: 2006
Language: English
Pages: 148
Title Page......Page 1
Copyright......Page 2
Contents......Page 3
Chapter 1: Caesar Ciphers......Page 5
Chapter 2: Sending Messages with Numbers......Page 8
Chapter 3: Breaking Caesar Ciphers......Page 16
Chapter 4: Keyword Ciphers......Page 22
Chapter 5: Letter Frequencies......Page 26
Chapter 6: Breaking Substitution Ciphers......Page 28
Chapter 7: Combining Caesar Ciphers......Page 32
Chapter 8: Cracking Vigenère Ciphers When You Know......Page 36
Chapter 9: Factoring......Page 40
Chapter 10: Using Common Factors to Crack......Page 52
Chapter 11: Introduction to Modular Arithmetic......Page 72
Chapter 12: More Modular Arithmetic......Page 80
Chapter 13: Multiplicative Ciphers......Page 86
Chapter 14: Using Inverses to Decrypt......Page 98
Chapter 15: Affine Ciphers......Page 112
Chapter 16: Finding Prime Numbers......Page 122
Chapter 17: Raising to Powers......Page 130
Chapter 18: The RSA Cryptosystem......Page 138
Chapter 19: Revisiting Inverses in Modular Arithmetic......Page 140
Chapter 20: Sending RSA Messages......Page 144
