MOD 5 Flashcards
What is a German encryption machine that had a code book and switched codes daily?
Enigma
Which cipher converts a symbol of plain text into a symbol of ciphertext?
Stream ciphers
What is the most popular stream cipher?
RC4
Which cipher encrypts a group of plaintext symbols as one block?
Block ciphers
What became the first DES in 1977?
Lucifer
What is a Data Encryption Standard (DES)
a block cipher that puts input and outputs data into blocks of 64-bits
What type of DES uses 2-3 keys and spins through the algoritm 3 times?
3DES
Which Advanced Encryption standard was part of 15 proposals that ultimately won?
Rijindael
Advanced Encryption Standard uses _________ bit blocks
128
Which encryption standard uses shift row, mixing columns, and subkeys?
Advanced Encryption Standard (AES)
What is used for integrity?
Hash
What is a generic version of a hash algorithm that puts hash into the algorithm?
Message Digest (MD)
Which Message Direct is optimized for 32-bit computers, has a fast algorithm but isn’t secure?
MD4
Which Message Direct is similar to MD4, slower but more secure, and has no known attacks against it?
MD5
What was developed in 1993 for secure hasing in the U.S. Digital Signature Standard?
SHA
