Here is the text of the NIST sp800-63b Digital Identity Guidelines.
I usually do 256 characters. That's long enough that most password managers top out anyway (mine tops out at 128), and it shouldn't ever present a DOS risk. Anything much beyond that and you'll go beyond the hash length.
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I usually do 256 characters. That's long enough that most password managers top out anyway (mine tops out at 128), and it shouldn't ever present a DOS risk. Anything much beyond that and you'll go beyond the hash length.