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