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ABCs of Cryptography
Terms in this set (20)
To decrypt an encrypted message, pass the encrypted message and the _____ to the decrypt function.
Cryptography is defined as:
The practice of encoding information so only authorized people can read it
What kind of information does encryption keep safe?
Why do we use cryptography?
To secure digital and non-digital data
What is the primary flaw with the Caesar Cipher and other substitution ciphers?
With enough frequency, a message could be decrypted
What was the role of the rotors in the Enigma machine?
To decipher WW2 messages
What was one specific feature that, other than the rotors, that made the Enigma so difficult to crack?
It was electro-mechanical.
How were the Rongorongo texts different from most other written forms of language?
They are symbols
What advantage did the Navajo Code Talkers have over other means of cryptography?
They were more capable
What makes the Rongorongo texts nearly indecipherable?
They change constantly.
What does the C stand for in the CIA triad?
What does the I stand for in the CIA triad?
What does the A stand for in the CIA triad?
What is the word "CAT" encrypted with the Caesar cipher with a key of 1?
What method is effective in cracking the Caesar cipher?
Brute force and frequent letter analysis
Advantage of Caesar Cipher
Easy to learn
Disadvantage of Caesar Cipher
Easy to crack
Public-key cryptography (a form of asymmetric cryptography) is an encryption method that's widely used because:
It is computationally infeasible to compute the private key based on the public key.
Uses the same key for encryption and decryption
Uses one key for encryption and a different key for decryption
THIS SET IS OFTEN IN FOLDERS WITH...
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