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A comment on Ask HN: Is it possible to decrypt 256-bit encrypted radio in the battlefield?.

Re:Ask HN: Is it possible to decrypt 256-bit encrypted radio... by bityard on Friday May 19, 2023 @12:04PM (#36003529)
"256-bit encryption" doesn't tell us anything. What's the algorithm? Where's the implementation?

AES-256 for example, is considered uncrackable. But it's perfectly possible that Motorola is using something wacky and home-grown and calls it "256-bit" just to get the bullet-point on the box.

[ Parent | on HN ]
Re:Ask HN: Is it possible to decrypt 256-bit encrypted radio... by pipo234 on Friday May 19, 2023 @12:09PM (#36003584)
Or an RSA private key of a mere 256 bits, which would be way too small. :-)
[ Parent | on HN ]
Re:Ask HN: Is it possible to decrypt 256-bit encrypted radio... by The_Colonel on Friday May 19, 2023 @03:17PM (#36005778)
The standard in question (P25) is indeed using AES-256.
[ Parent | on HN ]
Re:Ask HN: Is it possible to decrypt 256-bit encrypted radio... by c4ptnjack on Friday May 19, 2023 @04:03PM (#36006234)
Not necessarily. It provides for all sorts of encryption schemes, including none.

That and they're likely LMR not P25 being in the part of Europe they're in.

[ Parent | on HN ]
Re:Ask HN: Is it possible to decrypt 256-bit encrypted radio... by The_Colonel on Friday May 19, 2023 @05:10PM (#36006887)
AES is the only one supported with 256bit key length.
[ Parent | on HN ]