On 8 Jun 2012, at 13:51, Dag-Erling Smørgrav wrote: > We still have MD5 as our default password hash, even though known-hash > attacks against MD5 are relatively easy these days. We've supported > SHA256 and SHA512 for many years now, so how about making SHA512 the > default instead of MD5, like on most Linux distributions?
Has anyone looked at how long the SHA512 password hashing actually takes on modern computers? The "real" solution for people who care significantly about this seems something like the algorithm pjd implemented (I think he did it at least) for GELI, where the number of rounds is variable and calculated so it takes X/0.X seconds on the specific hardware used. That's of course a lot more complicated, and I'm not sure if it would work with the crypt() API. Also, does anyone know if our SHA512 is compatible with the format used by Linux, other BSD's etc? -- Simon L. B. Nielsen _______________________________________________ freebsd-security@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "freebsd-security-unsubscr...@freebsd.org"
