Function parseDSA

internal/sshutil/sshutil.go:139–157

parseDSA parses an DSA key according to RFC 4253, section 6.6.

(in []byte)

// parseDSA parses an DSA key according to RFC 4253, section 6.6.
func parseDSA(in []byte) (*dsa.PublicKey, error) {
	var w struct {
		P, Q, G, Y *big.Int
		Rest       []byte `ssh:"rest"`
	}
	if err := ssh.Unmarshal(in, &w); err != nil {
		return nil, errors.Wrap(err, "error unmarshaling public key")
	}

	param := dsa.Parameters{
		P: w.P,
		Q: w.Q,
		G: w.G,
	}
	return &dsa.PublicKey{
		Parameters: param,
		Y:          w.Y,
	}, nil
}

// parseRSA parses an RSA key according to RFC 4253, section 6.6.
func parseRSA(in []byte) (*rsa.PublicKey, error) {