pkg/tlsutil/cipher_suites.go
func GetCipherSuite(s string) (uint16, bool) {
	v, ok := cipherSuites[s]
	return v, ok
}
func GetCipherSuite(s string) (uint16, bool) {
	v, ok := cipherSuites[s]
	return v, ok
}
// GetCipherSuite returns the corresponding cipher suite,
// and boolean value if it is supported.