(Wgu C839)Revision Test Questions With All Verified Solutions.

What is the block and key size for Blowfish - Answer - 64 bit block - 32-448 bit key What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? - Answer Steganography What term from the list below best describes a data concealment for covert communication that makes use of LSB replacement? - Answer Steganography Which block cipher below uses a block size of 128 bits and key sizes up to 256 bits? - Answer TwoFish Symmetric encryption is expressed mathematically as : - Answer C = E (k,p) Name all the Hashing algorithms - Answer - Tiger - SHA256 - Fork256 - SHA1 - Gost - MD5 - RIPEMD-160 What is the has value for TIGER? - Answer 192 bit What is the hash value for SHA256? - Answer 128 Bit What is the hash value for FORK 256? - Answer 128 bit What is the hash value for SHA1? - Answer 160 Bit What is the hash value of GOST? - Answer 256 bit What is the hash value of MD5? - Answer 128 Bit What is the hash value of RIPEMD-160 - Answer 160 bit What are all they symmetric block ciphers? - Answer - AES - IDEA - DES - Blowfish - TwoFish