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crypto/internal/fips/aes/gcm: fix PPC64 gcm debug option logic

AES-GCM is always supported, unless the debug option explicitly
turns it off.

Change-Id: Iac17fd8429307d48daa601249a2505bcd1b1f892
Reviewed-on: https://go-review.googlesource.com/c/go/+/629695
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Archana Ravindar <aravinda@redhat.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This commit is contained in:
Paul E. Murphy 2024-11-19 11:28:49 -06:00 committed by Paul Murphy
parent 48d260cbd9
commit fa52db6a3f

View File

@ -29,7 +29,7 @@ func counterCryptASM(nr int, out, in []byte, counter *[gcmBlockSize]byte, key *u
// at runtime with GODEBUG=cpu.something=off, so introduce a new GODEBUG // at runtime with GODEBUG=cpu.something=off, so introduce a new GODEBUG
// knob for that. It's intentionally only checked at init() time, to // knob for that. It's intentionally only checked at init() time, to
// avoid the performance overhead of checking it every time. // avoid the performance overhead of checking it every time.
var supportsAESGCM = godebug.New("#ppc64gcm").Value() == "off" var supportsAESGCM = godebug.New("#ppc64gcm").Value() != "off"
func init() { func init() {
impl.Register("gcm", "POWER8", &supportsAESGCM) impl.Register("gcm", "POWER8", &supportsAESGCM)