ssh: Implement authentication for new ssh server

pkg/sshx/sshx.go

@@ -0,0 +1,17 @@
+package sshx
+
+import "github.com/gliderlabs/ssh"
+
+// ParseAllKeys parses all keys from the list of bytes
+func ParseAllKeys(bytes []byte) (keys []ssh.PublicKey) {
+	var key ssh.PublicKey
+	var err error
+	for {
+		key, _, _, bytes, err = ssh.ParseAuthorizedKey(bytes)
+		if err != nil {
+			break
+		}
+		keys = append(keys, key)
+	}
+	return
+}