Hmm, I've always interpreted it as FIPS 180-4, which is truncated 512 with its own special IV.
I always thought the special IV was to avoid mistaken half-matches against actual-SHA-512. And using the right most bits == insane. Seems ok
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I always thought the special IV was to avoid mistaken half-matches against actual-SHA-512. And using the right most bits == insane. Seems ok