tree e91aaabe5f2a93b2dd263031af820930f49a0057
parent e6b1200d11b062b0e525730044b7de555b7ed66d
author Filippo Valsorda <filippo@golang.org> 1525824564 -0400
committer Filippo Valsorda <filippo@golang.org> 1528930053 +0000

internal/subtle: add Any/InexactOverlap (new package) and apply them across packages

AnyOverlap and InexactOverlap implement checks for the aliasing
requirements defined by the crypto/cipher interfaces. Apply them to all
implementations as the actual requirement could be architecture-dependent
and user code should not rely on undefined behavior.

Updates golang/go#21624

Change-Id: I465de02fb3fec4e0c6f1fdee1ef6ae7ed5abff10
Reviewed-on: https://go-review.googlesource.com/112236
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>