# Timeline for Why does SHA-1 rotate the variables A and B?

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Aug 29 '16 at 9:22 comment @fgrieu, thanks, I added something to that effect.
Aug 29 '16 at 9:19 history edited
Aug 28 '16 at 8:33 comment Thanks! Do you also know why the variable $B$ was chosen to rotate over, for example, $C$ or $D$?