How can public key cryptography be used to ensure both confidentiality and authenticity in secure messaging systems?
Public key cryptography, also known as asymmetric cryptography, is an essential mechanism in the domain of secure messaging systems, providing both confidentiality and authenticity. This cryptographic paradigm leverages a pair of keys, a public key and a private key, to facilitate secure communication. The public key is openly distributed, while the private key remains confidential
- Published in Cybersecurity, EITC/IS/ACSS Advanced Computer Systems Security, Messaging, Messaging security, Examination review
What are the primary goals of secure messaging between two users, and how do confidentiality and authenticity sometimes conflict in this context?
The primary goals of secure messaging between two users encompass several critical aspects, including confidentiality, authenticity, integrity, and non-repudiation. Each of these objectives plays a vital role in ensuring that the communication remains secure and trustworthy. However, there can be inherent conflicts between these goals, particularly between confidentiality and authenticity, which necessitate careful consideration and