Q: What is cryptography? A: The practice of securing information by converting plaintext into ciphertext using encryption schemes. Q: What key characteristic defines symmetric encryption? A: Both the sender and receiver use the same key for encryption and decryption. Q: How does asymmetric encryption differ from symmetric encryption? A: It uses a pair of keys – a public key for encryption and a private key for decryption. Q: What does confidentiality ensure in cryptography? A: That information is accessible only to those authorized to access it. Q: What does integrity mean in the context of cryptography? A: Preventing unauthorized changes to data or resources. Q: What is the purpose of authentication in cryptography? A: To assure that the communication, document, or data is genuine. Q: What does nonrepudiation guarantee? A: That the sender of a message cannot deny having sent it, and the recipient cannot deny having received it. https://quizlet.com/au/928590928/module-20-cryptography-flash-cards/?i=2hfw1u&x=1jqt