Why haven't asymmetrical keys replaced passwords yet?
imagined security scheme:
1.Generate public/private key pair
2. share public key when creating account with whomever.
3. when logging in, account will send you random string
4. your browser will encrypt string with private key
5. account will decrypt string with your public key, if it is the same string they sent, you are authenticated.
@zacharius The two issues I see with this is that 1) people are totally going to lose their USBs -- so then they're screwed. 2) USB sticks are a super easy to inject malicious code into a new computer. I've heard of companies with software that auto-formats USB devices upon being plugged into the computer.
How are you seeing this model as more secure than a password manager?
@sgparent I agree that portable drives are a problem and the best practice would be to only store keys on personal devices. This would be a limitation in that you wouldn't be able to log on through any device, but most people carry computers around with them everywhere so I don't think that is too much of an issue.
Keys beat passwords because I don't have to trust a 3rd party with my private key, like I do my passwords. Smart companies store hashes instead of keys anyway but I don't want to have to trust that companies have sane security practices.
Also it is much more manageable to keep track of a keypair than dozen of passwords. I am relatively educated on security and I still reuse most of my passwords. It's not functional to maintain sane security across dozens of account with passwords
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