Intentional Flaw in GPRS Encryption Algorithm GEA-1
Schneier on Security
JUNE 17, 2021
General Packet Radio Service (GPRS) is a mobile data standard that was widely used in the early 2000s. The first encryption algorithm for that standard was GEA-1, a stream cipher built on three linear-feedback shift registers and a non-linear combining function. That’s basically the intelligence agencies of the EU countries.
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