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by fiddlerwoaroof
2609 days ago
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This example isn't particularly good: I'm much more likely to lose a random keycard in my pocket than my wallet so, although having the keycard in my wallet might make it easier to figure out what door it opens, it also makes it much less likely that I'd lose my keycard in the first place. |
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On this example, I don't think it's a problem as well. First, the keycard has a PIN. After 3 failed attempts, it would either self-destruct the private key or lock itself down until a secret recovery code is provided. Second, private keys on keycards that are reported as lost can be revoked immediately.