@alecmuffett bcrypt’s length limit is 72, not 55. The latter is an error originating from Blowfish’s 448-bit recommended maximum key size.
— Solar Designer (@solardiz) November 14, 2012
I found the “55” number in some white paper but I was shocked at how hard it was to get any info on max plaintext length.
Cryppies evidently care more about the entropy than advertising their length.
…now I shall go backpatch my articles.