Video Broadcast : #198
January 16, 2021
- Public Speaking
- Telephony and Telegraphy
- Convergence of Computing and Communication
- Secure Communications
A Secure Channel is based on the concept that it is difficult if not impossible to access the messages passing through the channel. At one extreme is a dedicated channel with reliable protocols for handshaking (hardware, software) to start a communication session and to maintain the session for a specified period.
A Secure Message adds another level of security (if used with a Secure Channel). A secure message is based on the concept that it should be difficult if not impossible to intercept or access the message and decrypt it within a reasonable time. An assumption is that the value of a message is time-bounded and the system that generates it guarantee the security for a specified period.
If the sensitive data in the repository (data base, servers) and the media can be “disguised” (using cryptography …), yet another level of security can be achieved.
Securing data requires time, resource and adherence to privacy rules, ethics. Even some large corporations (e.g. which maintain credit scores) are lax in guarding the information of their employees and clients.
- Codes and Ciphers
- End to end encryption