Wednesday, February 15, 2017

Info-Sec Guideline: Information Cryptography

Guideline: Information Cryptography

Part of: Information Security Guidelines
OverviewBuilding a set of Guidelines for Security and Privacy

Data transport channels over which any type of information is being transmitted using a publicly available communications channel must always be encrypted using modern and open standards. In addition, data transported by physical means is always done using an encrypted carrier.

Wikipedia: The Enigma machine
Encryption is one of the key security controls that can help keep you data safe from prying eyes. It is as old as the ancient Romans and Greeks and played a major role in World War II with the Enigma machine. But encryption has a (sometimes significant) trade-off. And that is that of resources. It costs time and energy to do its work. The compute time varies across different algorithms, key-lengths and implementations. Despite these trade-offs, the mindset should be that of: “Encrypt Everything!”.

Whenever data is transported using physical carriers, at least the carrier itself should be encrypted. Think about USB-sticks utilizing hardware based encryption. In addition, think about encrypting the data itself also. When data is transported using communications channels, the channel over which the data flows should be encrypted. This can be done in multiple ways, depending on the needs and available options.

In short, make sure that no one can eavesdrop your data and encrypt the means that is used for the transport.

More information from Teusink.eu about Encryption and Hashing.
More information from Wikipedia about Cryptography and Encryption.
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