The cipher needs to load the stream in LE order. Use the byte reversing loads on BE. Also, remove the unused variable poly1305Mask in the PPC64 asm file too. Change-Id: Ie90fe7bb0ea7a3bcb76583e0cf9c1e4133499541 Reviewed-on: https://go-review.googlesource.com/c/crypto/+/614298 Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Archana Ravindar <aravinda@redhat.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com>