var supportedMACs = []string{
	"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1", "hmac-sha1-96",
}

var supportedKexAlgos = []string{
	kexAlgoCurve25519SHA256,
	// P384 and P521 are not constant-time yet, but since we don't
	// reuse ephemeral keys, using them for ECDH should be OK.
	kexAlgoECDH256, kexAlgoECDH384, kexAlgoECDH521,
	kexAlgoDH14SHA1, kexAlgoDH1SHA1,
}

func (c *Config) SetDefaults() {

	if c.KeyExchanges == nil {
		c.KeyExchanges = supportedKexAlgos
	}

	if c.MACs == nil {
		c.MACs = supportedMACs
	}

}

var preferredMACs = []string{
	"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256",
}

var preferredKexAlgos = []string{
	kexAlgoCurve25519SHA256,
}

func (c *Config) SetDefaults() {

	if c.KeyExchanges == nil {
		c.KeyExchanges = preferredKexAlgos
	}

	if c.MACs == nil {
		c.MACs = preferredMACs
	}

}