Basic ghost plugin

plugos/syscalls/jwt.ts

@@ -0,0 +1,22 @@
+import jwt, { Algorithm } from "jsonwebtoken";
+import { SysCallMapping } from "../system";
+
+export function jwtSyscalls(): SysCallMapping {
+  return {
+    "jwt.jwt": (
+      ctx,
+      hexSecret: string,
+      id: string,
+      algorithm: Algorithm,
+      expiry: string,
+      audience: string
+    ): string => {
+      return jwt.sign({}, Buffer.from(hexSecret, "hex"), {
+        keyid: id,
+        algorithm: algorithm,
+        expiresIn: expiry,
+        audience: audience,
+      });
+    },
+  };
+}