package stupidgcm import ( "golang.org/x/sys/cpu" ) // PreferOpenSSL tells us if OpenSSL is faster than Go GCM on this machine. // // Go GCM is only faster if the CPU: // // 1) Is X86 // 2) Has AES instructions // 3) Go is v1.6 or higher // // See https://github.com/rfjakob/gocryptfs/wiki/CPU-Benchmarks // for benchmarks. func PreferOpenSSL() bool { if BuiltWithoutOpenssl { return false } // Safe to call on other architectures - will just read false. if cpu.X86.HasAES { return false } return true }