WGU C839-Practice test Questions and Answers Already Passed

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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? -Crypanalysi ... s -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 What is the block and key size for IDEA? ✔✔- 64 bit block - 128 bit key What is the block and key size for Blowfish ✔✔ [Show More]

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