const github.com/refraction-networking/utls/dicttls.TLS_RSA_WITH_AES_256_CBC_SHA256

one use

	github.com/refraction-networking/utls/dicttls (current package)
		cipher_suites.go#L67: 	TLS_RSA_WITH_AES_256_CBC_SHA256       uint16 = 0x003D