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1:38
YouTube
Cybersecurity Education Consortium
Types of Ciphers - What is a Book Cipher?
Ciphers are devices that encode secret messages. So, will you help us decode our message from Sparky’s Diary? What’s a Book Cipher? A book cipher uses a message hidden in the lines of a book. By using three key components, the page number, line number, and the word number. The plaintext or message is translated from this code. . . . The ...
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