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Feb 5, 2020 at 17:09 comment added Neeraj @fivedogit Password only protects your private key from an attacker who has physical/remote access to your device. Your password would be of no use when reversing (brute-force) a private key from public.
May 25, 2019 at 8:46 history edited eth CC BY-SA 4.0
clarify account abstraction
Jul 4, 2017 at 13:04 comment added fivedogit @bekah Thanks. So even though a quantum computer can't get the password, they'd have the private key and therefore wouldn't need the password to steal the funds, correct? So someone with a quantum computer and the password has no advantage over someone with a quantum computer and no password?
Jul 4, 2017 at 8:59 comment added bekah @fivedogit the key can be derived from the transaction signature, so yep available on the blockchain forever. the password is fed into some algo and used to encrypt the private key while it's at rest on your computer -- so quantum computers won't be able to recover your password from the signature. They'd require access to your machine for that to be a threat, which is a totally different threat model :)
Jul 4, 2017 at 3:35 comment added fivedogit Two questions: First, prob dumb: "sending from an address will reveal the public key" Does that mean an observer has to be "recording" it live or is it on or derivable from the chain forever? Second, prob also dumb: You say quantum will be able to deduce the private key. Does that include or exclude the user's password to the account?
Apr 13, 2017 at 13:01 history edited CommunityBot
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Apr 13, 2017 at 12:48 history edited CommunityBot
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Apr 13, 2017 at 12:47 history edited CommunityBot
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Apr 4, 2017 at 6:19 history edited eth CC BY-SA 3.0
link to easy way to get the public key
Mar 27, 2017 at 9:59 history edited eth CC BY-SA 3.0
users do not need to stick with ECDSA
Feb 8, 2016 at 13:29 vote accept clewisjr1
Feb 8, 2016 at 8:57 history answered eth CC BY-SA 3.0