CRACKING CODES
WITH PYTHON
CRACKING CODES
WITH PYTHON
AN INTRODUCTION TO
BUILDING AND BREAKING CIPHERS
AL SWEIGART
SECRET CIPHERS
BY HACKING
LEARN PYTHON
SECRET CIPHERS
BY HACKING
LEARN PYTHON
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!
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.
www.nostarch.com
THE FINE ST IN GEEK E NTERTAINMENT
™
“I L IE FL AT.”
This book uses a durable binding that won’t sna p shut.
FSC FPO
SHELVE IN: PROGRAMMING
LANGUAGES/PYTHON
$29.95 ($39.95 CDN)
COVERS
PYTHON 3
CRACKING CODES WITH PYTHON
CRACKING CODES WITH PYTHON
SWEIGART
剩余417页未读，继续阅读
trismile
- 粉丝: 4
- 资源: 65
我的内容管理
收起
- 我的资源
快来上传第一个资源
我的收益 登录查看自己的收益
我的积分
登录查看自己的积分
我的C币
登录后查看C币余额
我的收藏 
我的下载 
下载帮助
评论0