const crypto/ed25519.PrivateKeySize

3 uses

	crypto/ed25519 (current package)
		ed25519.go#L33: 	PrivateKeySize = 64
		ed25519.go#L121: 	privateKey := make([]byte, PrivateKeySize)
		ed25519.go#L158: 	if l := len(privateKey); l != PrivateKeySize {