In cryptography, what is cipher?

Related MCQs

• On Encrypting “thepepsiisintherefrigerator” using Vignere Cipher System using the keyword “HUMOR” we get cipher text-
• A transposition cipher reorders (permutes) symbols in a
• An algorithm used in encryption is referred to as cipher.
• An asymmetric-key (or public-key) cipher uses
• A straight permutation cipher or a straight p-box has the same number of input as
• Choose from among the following cipher systems, from best to the worst, with respect to ease of decryption using frequency analysis.
• Chosen cipher text attack is based on
• What is the number of possible 3 x 3 affine cipher transformations
• In affine block cipher systems if f(m)=Am + t, what is f(m1+m2+m3) ?
• The DES Algorithm Cipher System consists of                            rounds (iterations) each with a round key