The fact that I had to look at the source of the function to even consider answering your question proves your point :)

Something like `xorWrapWrapKey` would probably be most accurate but, uh, WTF does *that* mean. Maybe `wrapOrUnwrapWrapKb`? (too many wraps!) 

Its used to go from wrapWrapKb -> wrapKb and wrapKb -> wrapWrapKb in the code so here's a crazy idea: have 2 names for the same function... `getWrapKb` and `getWrapWrapKb`? Silly but easier to read.