Cipher - ANSWER The set of rules you are using to encode the information
Key - ANSWER What tells you how to arrange the cipher's rules. _______ is applied
using an algorithm to a string or block of unencrypted text to produce encrypted.
Deciphering - ANSWER Analyzing the code and working back from it
Monoalphabetic Cipher - ANSWER A class of ciphers where the code is based on one
letter of the alphabet standing for another letter consistently throughout the message
Brute force - ANSWER Trying all the possible ways to crack a code
Frequency Analysis - ANSWER Based on the idea that every language has its own
specific patterns. The study of the frequency of letters or groups of letters in a ciphertext.
Polyalphabetic Cipher - ANSWER The way you scramble the alphabet actually changes
throughout the message
Example: Vigenère cipher
One time pad encryption - ANSWER Only way to create an unbreakable cipher. Uses
the key that is as long as the message itself. Once a sheet is used for a message you destroy
it. Then you use the next sheet for the next message so you never repeat a key. As long as
you keep the pad safe, no one can ever decrypt the message.
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Key - ANSWER What tells you how to arrange the cipher's rules. _______ is applied
using an algorithm to a string or block of unencrypted text to produce encrypted.
Deciphering - ANSWER Analyzing the code and working back from it
Monoalphabetic Cipher - ANSWER A class of ciphers where the code is based on one
letter of the alphabet standing for another letter consistently throughout the message
Brute force - ANSWER Trying all the possible ways to crack a code
Frequency Analysis - ANSWER Based on the idea that every language has its own
specific patterns. The study of the frequency of letters or groups of letters in a ciphertext.
Polyalphabetic Cipher - ANSWER The way you scramble the alphabet actually changes
throughout the message
Example: Vigenère cipher
One time pad encryption - ANSWER Only way to create an unbreakable cipher. Uses
the key that is as long as the message itself. Once a sheet is used for a message you destroy
it. Then you use the next sheet for the next message so you never repeat a key. As long as
you keep the pad safe, no one can ever decrypt the message.
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