CRYPTO DICTIONARY

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2013

The year of Edward Snowden’s leaks about the NSA’s classified activities, a turning point in cryptography. End-to-end encryption suddenly becomes an appealing topic.

65537

The most common RSA public exponent; large enough to not be insecure, small enough to make exponentiation fast, and of a form that optimizes implementations’ speed (65537 = 2¹⁶ + 1).

A

A5/0

One of the three encryption modes in early mobile telephony standards (GSM). A5/0 just means no encryption; therefore, the audio content from a mobile call would be received and transmitted in the clear between a mobile device and the nearest base station. It’s as secure as early TLS versions’ null cipher.

A5/1

The default GSM cipher in Western countries (prior ...