Table of Contents for
Hands-On Cryptography with Python

Version ebook / Retour

Cover image for bash Cookbook, 2nd Edition Hands-On Cryptography with Python by Samuel Bowne Published by Packt Publishing, 2018
  1. Hands-On Cryptography with Python
  2. Title Page
  3. Copyright and Credits
  4. Hands-On Cryptography with Python
  5. Packt Upsell
  6. Why subscribe?
  7. PacktPub.com
  8. Contributor
  9. About the author
  10. Packt is searching for authors like you
  11. Table of Contents
  12. Preface
  13. Who this book is for
  14. What this book covers
  15. To get the most out of this book
  16. Download the example code files
  17. Download the color images
  18. Conventions used
  19. Get in touch
  20. Reviews
  21. Obfuscation
  22. About cryptography
  23. Installing and setting up Python
  24. Using Python on Mac or Linux
  25. Installing Python on Windows
  26. Caesar cipher and ROT13
  27. Implementing the Caesar cipher in Python
  28. ROT13
  29. base64 encoding
  30. ASCII data
  31. Binary data
  32. XOR
  33. Challenge 1 – the Caesar cipher
  34. Challenge 2 – base64
  35. Challenge 3 – XOR
  36. Summary
  37. Hashing
  38. MD5 and SHA hashes
  39. What are hashes?
  40. Windows password hashes
  41. Getting hashes with Cain
  42. MD4 and Unicode
  43. Cracking hashes with Google
  44. Cracking hashes with wordlists
  45. Linux password hashes
  46. Challenge 1 – cracking Windows hashes
  47. Challenge 2 – cracking many-round hashes
  48. Challenge 3 – cracking Linux hashes
  49. Summary
  50. Strong Encryption
  51. Strong encryption with AES
  52. ECB and CBC modes
  53. ECB
  54. CBC
  55. Padding oracle attack
  56. Strong encryption with RSA
  57. Public key encryption
  58. RSA algorithm
  59. Implementation in Python
  60. Challenge – cracking RSA with similar factors
  61. Large integers in Python
  62. What's next?
  63. Cryptography within IoT
  64. ZigBee cryptographic keys
  65. Complexity of ZigBee key management
  66. Bluetooth – LE
  67. Summary
  68. Other Books You May Enjoy
  69. Leave a review - let other readers know what you think

What this book covers

Chapter 1, Obfuscation, covers the Caesar cipher and ROT13, simple character substitution ciphers, and base64 encoding. We then move on to XOR. In the end, there are challenges to test your learning  that involve cracking the Caesar cipher, reversing base64 encoding, and deciphering XOR encryption without the key. 

Chapter 2, Hashing, covers the older MD5 and the newer SHA hashing techniques and also Windows password hashes. The weakest type of hashing is common use, followed by Linux password hashes, which are the strongest type of hashing in common use. Afterward, there are some challenges to complete. The first is to crack some Windows hashes and recover passwords, then you will be tasked with cracking hashes where you don't even know how many rounds of hashing algorithm were used, and finally you will be asked to crack those strong Linux hashes.

Chapter 3, Strong Encryption, covers the primary mode used to hide data today. It is strong enough for the US military. Then, there are two of its modes, ECB and CBC; CBC being the stronger and more common one. We will also discuss the padding oracle attack, which makes it possible to overcome some parts of AES CBC if the designer makes an error and the overly informative error message gives information to the attacker. Finally, we introduce RSA, the main public key algorithm used today, which makes it possible to send secrets over an insecure channel without having exchanged a gives private key. Following all that, we will perform a challenge where, we will crack RSA in the case where it is erroneously created with two similar prime numbers instead of two random prime numbers.