Radio Code Kept Secret for Years Reveals Its Flaw—a Backdoor (www.wired.com)

submitted 1 year ago by stefenauris@pawb.social to c/tech@pawb.social

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Three Dutch security analysts discovered the vulnerabilities—five in total—in a European radio standard called TETRA (Terrestrial Trunked Radio), which is used in radios made by Motorola, Damm, Hytera, and others.

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[-] ret@furry.engineer 2 points 1 year ago

@cosmo @stefenauris @bersl2 agree except that TEA2/3 weren’t vulnerable *in this particular study*. ETSI/TCCA are (foolishly, I think) sticking to their guns on the algorithms being tightly controlled. Without proper, widespread academic scrutiny there is little confidence that they are *actually* secure.

[-] ret@furry.engineer 3 points 1 year ago

@cosmo @stefenauris @bersl2 I like how the researchers in their release squarely blame the TEA1 issues on failure to adhere to Kerckhoffs's principle; but ETSI in their response completely fail to address that and adopt a “this is fine” stance.

this post was submitted on 24 Jul 2023

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