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> There is very little cryptography involved Wha? That may have been true about twenty years ago, but not now. BMW was using 256-bit RSA keys to validate ECU
by inferiorhuman 8y ago
> There is very little cryptography involved
Wha? That may have been true about twenty years ago, but not now. BMW was using 256-bit RSA keys to validate ECU firmware and authenticate privileged access in the early 2000s (they're up to 1024-bit keys now) and write-once memory in their instrument clusters for about as long. Other (Euro) car makers using the same vendors offer similar features.
Once you have physical access all bets are off though. That's why the thieves cut the alarm sensors.
- Tobba_ 8y agoWhy the hell does RSA ever get used anymore, esp. in smartcards etc? It's been obsolete for like 10 years thanks to ECC, and ECC is way easier to implement (esp. 127-bit and 521-bit).
- rocqua 8y agoRSA has value in encryption which ECC can't do. Beyond that, RSA is so much easier to understand and implement. Because computing powers of numbers is easier than computing multiples of points on a curve.