+### Generate a Secure Random Key
+
+This generates a hex-encoded 128-bit random key.
+
+```bash
+node -p 'crypto.randomBytes(16).toString("hex")'
+```
+
+This generates a url-safe base64 256-bit random key.
+
+```bash
+node -p 'crypto.randomBytes(32).toString("base64")
+ .replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")'
+```
+