How on earth can you both not accept the password I copied from my password safe and tell me that I cannot use the same pasaword again?
How on earth can you both not accept the password I copied from my password safe and tell me that I cannot use the same pasaword again?
Also suggests the user may be reusing the same prefix if only the changed bits are getting truncated.
Should use different random passwords every time. Completely random or a random string of words. While it doesn’t solve the cleartext password storage issue, a data breach won’t compromise all your other accounts to same degree.
Doesn’t hurt to also randomize usernames, emails, and even security question answers.
edit: or my new favorite passkeys, just make sure you trust whatever tool is managing your private keys.
Not how password hashing works. Demonstrated with sha256:
hunter2butitsreallylong
:a9953dfbfec699349341edc857dcfe5c7a617c81f312cf57297d5b852881bab3
hunter2
:f52fbd32b2b3b86ff88ef6c490628285f482af15ddcb29541f94bcf526a3f6c7
a hash algorithm encompasses all provided data and returns a single fixed length data response
https://en.wikipedia.org/wiki/Cryptographic_hash_function
Any changes, even just removing a few characters, drastically changes the output of the hash function (https://en.wikipedia.org/wiki/Avalanche_effect)
You have no way of knowing a user password when you are storing hashes, you can’t truncate them, and the user password length doesn’t matter (up to a certain point where it’s technologically dumb to hash user input over a certain amount of data)
I do agree however that changing / randomizing your password is important, as someone brute forcing or running rainbow tables etc on a hash dump can quickly attack a common password across different dumps