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  • Cracking Codes with Python: An Introduction to Building and Breaking Ciphers

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Cracking Codes with Python: An Introduction to Building and Breaking Ciphers

by Al Sweigart (Author) Format: Paperback
4.7 out of 5 stars (400)
90 days free of Amazon Music with purchase Terms
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Learn how to program in Python while making and breaking ciphers—algorithms used to create and send secret messages! 

After a crash course in Python programming basics, you’ll learn to make, test, and hack programs that encrypt text with classical ciphers like the transposition cipher and Vigenère cipher. You’ll begin with simple programs for the reverse and Caesar ciphers and then work your way up to public key cryptography, the type of encryption used to secure today’s online transactions, including digital signatures, email, and Bitcoin.

Each program includes the full code and a line-by-line explanation of how things work. By the end of the book, you’ll have learned how to code in Python and you’ll have the clever programs to prove it!

You’ll also learn how to:

- Combine loops, variables, and flow control statements into real working programs
- Use dictionary files to instantly detect whether decrypted messages are valid English or gibberish
- Create test programs to make sure that your code encrypts and decrypts correctly
- Code (and hack!) a working example of the affine cipher, which uses modular arithmetic to encrypt a message
- Break ciphers with techniques such as brute-force and frequency analysis

There’s no better way to learn to code than to play with real programs. Cracking Codes with Python makes the learning fun!
Read more
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  1. ISBN-10
    1593278225
  2. ISBN-13
    978-1593278229
  3. Edition
    Illustrated
  4. Publisher
    No Starch Press
  5. Publication date
    January 23, 2018
  6. Language
    English
  7. Dimensions
    7.05 x 0.94 x 9.25 inches
  8. Print length
    416 pages
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Editorial Reviews

Review

“Definitely worth the read even as an experienced Python developer. I learned more about cryptography and even a few new Python tricks.”
—Ray Doyle, The Ethical Hacker Network

“I recommend this book for anyone who wants to learn Python/programming and is interested in security or puzzles.”
—Jeanne Boyarsky, Code Ranch

“A fantastic programming and cryptography course for any high school-aged child.”
—The Old Schoolhouse Magazine

About the Author

Al Sweigart is a professional software developer who teaches programming to kids and adults. He is the author of Automate the Boring Stuff with Python, Invent Your Own Computer Games with Python, and Scratch Programming Playground, also from No Starch Press. His programming tutorials can be found at inventwithpython.com.

Product details

  • Publisher ‏ : ‎ No Starch Press
  • Publication date ‏ : ‎ January 23, 2018
  • Edition ‏ : ‎ Illustrated
  • Language ‏ : ‎ English
  • Print length ‏ : ‎ 416 pages
  • ISBN-10 ‏ : ‎ 1593278225
  • ISBN-13 ‏ : ‎ 978-1593278229
  • Item Weight ‏ : ‎ 1.75 pounds
  • Reading age ‏ : ‎ 12 years and up
  • Dimensions ‏ : ‎ 7.05 x 0.94 x 9.25 inches
  • Best Sellers Rank: #842,116 in Books (See Top 100 in Books)
  • Customer Reviews:
    4.7 out of 5 stars (400)

About the author

Follow authors for new release and deal updates, plus improved recommendations. See updates from all followed authors in Your Books.
Al Sweigart

Al Sweigart

Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

Al Sweigart is a software developer and tech book author living in Houston. He has written several programming books for beginners, including Automate the Boring Stuff with Python. His books are freely available under a Creative Commons license at his website https://inventwithpython.com.

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Customer reviews

4.7 out of 5 stars
400 global ratings

Customers say

Customers find the book to be a brilliant primer on basic Python programming practices. They appreciate its comprehensive approach, with one customer noting how it walks through from basic data types and decision structures, while another mentions the companion website with answers to practice problems.
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16 customers mention comprehensive, 13 positive, 3 negative
Customers find the book comprehensive and well-structured, serving as a brilliant primer on basic Python programming practices. One customer notes that it walks readers through from basic data types and decision structures, while another mentions that it provides a companion website with answers to all the practice problems.
...Codes with Python gets right into producing something that is comprehensive and useful. In this book you learn by doing....Read more
...& Network Security, this book makes learning python more interesting & useful. Highly recommended.Read more
...Covers most of the basics, not very deeply though, but in my opinion good enough....Read more
Nice book with all concepts clearly explainedRead more
11 customers mention content, 10 positive, 1 negative
Customers find the book engaging, with one mentioning it makes learning Python more interesting, while another notes it keeps beginners busy with exercises.
Great Book really breaks down the fundamentals of cracking.Read more
Good oneRead more
...I've recommended this book to folks who want to learn to code, and I'll keep doing so!...Read more
Nice book with all concepts clearly explainedRead more
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