New Project

src/libs/crypto/index.ts

@@ -100,3 +100,14 @@ export const accessToken = async (identifier: IIdentifier) => {
   });
   return jwt;
 };
+
+export const sign = async (privateKeyHex: string) => {
+  const input = privateKeyHex.startsWith("0x")
+    ? privateKeyHex.substring(2)
+    : privateKeyHex;
+  const privateKeyBytes = u8a.fromString(input.toLowerCase(), "base16");
+
+  const signer = didJwt.ES256KSigner(privateKeyBytes, true);
+
+  return signer;
+};