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HLS 625 Assignment: Four Objectives of Cryptography
Answer each of the following questions concisely but completely.
Discuss the four objectives of cryptography. Explain how each of these objectives relates to information security management.
Distinguish between symmetrical and asymmetrical encryption. Give examples of symmetric and asymmetric ciphers.
Explain the purpose of digital signature algorithms and hash algorithm.
Discuss message authentication codes and how they relate to the four objectives of cryptography.
Discuss two principles of cryptographic key management.
Explain the difference between stream and block ciphers and when each is best used.
Explain what quantum cryptography is.
HLS 625 Written Assignment 2 Name Institute of affiliation Date HLS 625 Written Assignment 2 1 Objectives * Confidentiality of the message. Only the authorized recipient should be able to extract the message content of the cypher. Furthermore, obtaining information about the content of the message is not possible once the cryptographic analysis becomes easier. * Message integrity. The recipient must be able to determine if the message was altered during the transition. * Aut