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A brute-force attack is attempting to find a secret value by trying all possible values until the correct one is found.

2 votes
1 answer
1k views

How difficult is it to crack sha256(sha256(pin)) with a 6 digit pin and no salt?

My friend forgot the password to his electrum wallet but knows that it's a 6 digit pin. I looked into it and from what I can find electrum uses the sha256(sha256(pin)) to generate the key used to encr …