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by kragen
595 days ago
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You can't, that's true, and in particular you can't get over 184 bits out of it. But that's also true of, for example, PBKDF1, which I think is the algorithm the term "KDF" was invented to describe. And bcrypt is often included in lists of KDFs, for example by OWASP and Wikipedia. Arbitrary-length digests are certainly highly desirable for a KDF, but I don't think they are uncontroversially part of the definition of the term. |
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