Cryptography and encryption cracking in Python
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Learn to program on Python, creating and hacking the ciphers with which secret messages are sent!
After meeting the basics of programming on Python, you will learn how to create, test and hack classic ciphers, including a double cipher and cipher Vicener. Gradually, we will switch from simple algorithms, such as the reverse cipher and cipher Caesar, to the discussion of cryptosystems with an open key used today to protect online transactions.
Each chapter provides a full -fledged program with a step -by -step description of the algorithm of its work. After reading the book, you will learn how to program on Python and you can create your own cryptographic systems!
The main topics of the book:
Creating cryptographic applications on Python,
The application of dictionaries to quickly check whether the deciphered message contains a meaningful text in English or a random set of letters,
Creating tests that allow you to make sure that encryption and decryption code is working correctly,
Programming (and hacking!) An affin cipher, in which modular arithmetic is used to encrypt a message,
Hacking of ciphers by the method of rough strength and using frequency analysis.
About the author
El Sveigart is a professional developer, the author of many programming books, including a bestseller automation of routine tasks using Python
After meeting the basics of programming on Python, you will learn how to create, test and hack classic ciphers, including a double cipher and cipher Vicener. Gradually, we will switch from simple algorithms, such as the reverse cipher and cipher Caesar, to the discussion of cryptosystems with an open key used today to protect online transactions.
Each chapter provides a full -fledged program with a step -by -step description of the algorithm of its work. After reading the book, you will learn how to program on Python and you can create your own cryptographic systems!
The main topics of the book:
Creating cryptographic applications on Python,
The application of dictionaries to quickly check whether the deciphered message contains a meaningful text in English or a random set of letters,
Creating tests that allow you to make sure that encryption and decryption code is working correctly,
Programming (and hacking!) An affin cipher, in which modular arithmetic is used to encrypt a message,
Hacking of ciphers by the method of rough strength and using frequency analysis.
About the author
El Sveigart is a professional developer, the author of many programming books, including a bestseller automation of routine tasks using Python
Author:
Author:Sveigart El
Cover:
Cover:Soft
Category:
- Category:Computer & Technology
Publication language:
Publication Language:Russian
Paper:
Paper:Offset
ISBN:
ISBN:978-5-907203-02-0
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