IT Security: Defense against the digital dark arts. Week2: Pelcgbybtl (Cryptology) Already Passed

IT Security: Defense against the digital dark arts. Week2: Pelcgbybtl (Cryptology) Already Passed What are the components that make up a cryptosystem? Check all that apply encryption algorithms decryption algorithms key generation algorithms; A cryptosystem is a collection of algorithms needed to operate an encryption service. This involves generating encryption keys, as well as encryption and decryption operations. What is steganography? the practice of hiding messages; Steganography involves hiding messages, but not encoding them. What makes an encryption algorithm symmetric? the same keys used for encryption and decryption; The symmetry of a symmetric algorithm refers to one key being used for both encryption and decryption. What's the difference between a stream cipher and a block cipher? Stream ciphers encrypt data as a continuous stream, while block ciphers operate on chunks of data; A stream cipher takes data in as a continuous stream, and outputs the ciphertext as a continuous stream, too. A block cipher encrypts the data in chunks, or blocks. True or false: The smaller the encryption key is, the more secure the encrypted data is. false; The reverse is true. The larger the key, the more secure the encrypted data will be. Which of the following do asymmetric cryptosystems provide? Check all that apply. confidentiality authenticity