[Cryptography] Severe flaw in all generality : key or nonce reuse

Tony Arcieri bascule at gmail.com
Fri Oct 20 21:15:15 EDT 2017


On Fri, Oct 20, 2017 at 2:20 PM, Ray Dillinger <bear at sonic.net> wrote:

> How about - and this may be a radical notion here - but how about NOT A
> STREAM CIPHER?
>

I'll note that AES(-CMAC)-SIV and AES-PMAC-SIV both use a stream cipher for
encryption (AES-CTR), but are not susceptible to nonce reuse
vulnerabilities because they're MRAE constructions.

The reality is a bit more nuanced than "NOT A STREAM CIPHER"

-- 
Tony Arcieri
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