diff options
| -rw-r--r-- | internal/stupidgcm/prefer.go | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/internal/stupidgcm/prefer.go b/internal/stupidgcm/prefer.go index a08d154..c067d09 100644 --- a/internal/stupidgcm/prefer.go +++ b/internal/stupidgcm/prefer.go @@ -6,11 +6,11 @@ import ( // PreferOpenSSL tells us if OpenSSL is faster than Go GCM on this machine. // -// Go GCM is only faster if the CPU: +// Go GCM is only faster if the CPU either: // -// 1) Is X86 -// 2) Has AES instructions -// 3) Go is v1.6 or higher +// 1) Is X86_64 && has AES instructions && Go is v1.6 or higher +// 2) Is ARM64 && has AES instructions && Go is v1.11 or higher +// (commit https://github.com/golang/go/commit/4f1f503373cda7160392be94e3849b0c9b9ebbda) // // See https://github.com/rfjakob/gocryptfs/wiki/CPU-Benchmarks // for benchmarks. @@ -19,8 +19,10 @@ func PreferOpenSSL() bool { return false } // Safe to call on other architectures - will just read false. - if cpu.X86.HasAES { + if cpu.X86.HasAES || cpu.ARM64.HasAES { + // Go stdlib is probably faster return false } + // Openssl is probably faster return true } |