2, 3, 4 and 5

e Caesar cipher was sometimes used in an odd way. A messenger would have shaved and the ciphertext would be written on his head using a permane Chapter 3 Basic cryptogi ap 2. Th method. Be grow until it covered up the ciphertext. This way, if captured by the enemy, the ciphertext would not be apparent. When the messenger got to his destination, his head would be fore the messenger was sent to deliver the message, his hair was a aved to reveal the coded message. Which of the following descriptors applies to this implementation of the Caesar cipher? (Choose all that apply) a. Steganography b. Symmetric encryption c. Asymmetric encryption d. Block cipher ls sh 3. Which of the following is a symmetric encryption algorithm? (Choose all that apply.) a. AES b. 3DES C. RSA d. SHA e following is an asymmetric encryption algorithm? (Choose all that apply) a. AES b. Diffie-Hellman C. RSA d. MD5 5. Which of the following security standards is used by the U.S. federal government to ensure the security of its information systems? a. FIPS b. SANS C. CERT-ACID d. ISO 17799