WGU C839-Practice test Questions and Answers Already Passed

What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? -Crypanalysis -Stegnalysis -Steganography -Whitening Steganography Which block cipher below uses a block size of 128 bits and key sizes up to 256 bits? -DES -Blowfish -TwoFish -Tiger TwoFish Symmetric encryptionm is expressed mathematically as : - C=E(k,p) - P= E(k,c) - Me % n - y^2 = x^3 + Ax +B C = E (k,p) Name all the Hashing algorithms - Tiger - SHA256 - Fork256 - SHA1 - Gost- MD5 - RIPEMD-160 What is the has value for TIGER? 192 bit What is the hash value for SHA256? 128 Bit What is the hash value for FORK 256? 128 bit What is the hash value for SHA1? 160 Bit What is the hash value of GOST? 256 bit What is the hash value of MD5? 128 Bit What is the hash value of RIPEMD-160 160 bit What are all they symmetric block ciphers? - AES - IDEA - DES - Blowfish - TwoFish - Skipjack - Serpent What is the block and key size for AES? - 128 bit block - 128, 192 and 256 bit key What is the block and key size for DES? - 64 bit block - 56 bit key