Worksheetscryptography practise
Total questions: 20
Worksheet time: 28mins
In Cryptography, original message, before being transformed, is called
Simple Text
Plain Text
Cipher Text
Filled Text
An encryption algorithm transforms plain text into:
Cipher text
Simple Text
Empty Text
Plain Text
_______ is the science and art of transforming messages to make them secure and immune to attacks.
Cryptography
Cryptoanalysis
neither Cryptography nor Cryptoanalysis
either Cryptography or Cryptoanalysis
A(n) ______ algorithm transforms cipher text to plain text.
Encryption
Decryption
The _______ is a number or a set of numbers on which the cipher operates.
secret
cipher
key
none of the mentioned
The art and science of breaking the cipher text is known as
Cryptanalysis
Cryptography
Staganography
Watermarking
A method for determining a solution to a problem by sequentially testing all possible solutions.
brute force
relative frequency
cipher
paired keys
The process of converting a ciphertext into plaintext.
encryption
decryption
plaintext
cryptography
What is the term used to describe the science of making and breaking secret codes?
cryptology
impersonation
spoofing
factorization
jamming
A cipher is _________________________.
a person who makes up secret codes
an algorithm that is used to scramble text so that it can be passed in secret
a lock that can be used to lock a message in a lock box
any puzzle, such as a crossword or Sudoku puzzle
