// Try PEM
	if block, _ := pem.Decode(priv); block != nil {
		return x509.ParsePKCS1PrivateKey(block.Bytes)
	}
	// Try base 64
	dst := make([]byte, base64.StdEncoding.DecodedLen(len(priv)))
	if n, err := base64.StdEncoding.Decode(dst, priv); err == nil {
		return x509.ParsePKCS1PrivateKey(dst[:n])
	}
	// Try Raw, return error
	return x509.ParsePKCS1PrivateKey(priv)
}

pkg encoding/base32, method (*Encoding) Decode([]uint8, []uint8) (int, error)
pkg encoding/base32, method (*Encoding) DecodeString(string) ([]uint8, error)
pkg encoding/base32, method (*Encoding) DecodedLen(int) int
pkg encoding/base32, method (*Encoding) Encode([]uint8, []uint8)
pkg encoding/base32, method (*Encoding) EncodeToString([]uint8) string
pkg encoding/base32, method (*Encoding) EncodedLen(int) int