Initial commit with translated description

scripts/signChallenge.js

@@ -0,0 +1,92 @@
+const {
+  JWSPacker,
+  byteEncoder,
+  byteDecoder,
+  KmsKeyType,
+} = require("@0xpolygonid/js-sdk");
+const { getInitializedRuntime } = require("./shared/bootstrap");
+const {
+  parseArgs,
+  formatError,
+  outputSuccess,
+  createDidDocument,
+  getAuthResponseMessage,
+  buildEthereumAddressFromDid,
+} = require("./shared/utils");
+const { buildJsonAttestation } = require("./shared/attestation");
+
+async function signChallenge(challenge, entry, kms) {
+  const didDocument = createDidDocument(entry.did, entry.publicKeyHex);
+
+  const resolveDIDDocument = {
+    resolve: () => Promise.resolve({ didDocument }),
+  };
+
+  const jwsPacker = new JWSPacker(kms, resolveDIDDocument);
+
+  challenge.attestationInfo = buildJsonAttestation({
+    recipientDid: entry.did,
+    recipientEthAddress: buildEthereumAddressFromDid(entry.did),
+  });
+
+  const authMessage = getAuthResponseMessage(entry.did, challenge);
+  const msgBytes = byteEncoder.encode(JSON.stringify(authMessage));
+
+  let token;
+  try {
+    token = await jwsPacker.pack(msgBytes, {
+      alg: "ES256K-R",
+      issuer: entry.did,
+      did: entry.did,
+      keyType: KmsKeyType.Secp256k1,
+    });
+  } catch (err) {
+    throw new Error(`Failed to sign challenge: ${err.message}`);
+  }
+
+  return byteDecoder.decode(token);
+}
+
+async function main() {
+  try {
+    const args = parseArgs();
+
+    if (!args.challenge) {
+      console.error("Error: --challenge are required");
+      console.error(
+        "Usage: node scripts/signChallenge.js --challenge <challenge> [--did <did>]",
+      );
+      process.exit(1);
+    }
+
+    const { kms, didsStorage } = await getInitializedRuntime();
+
+    // Get DID entry - either specific DID or default
+    const entry = args.did
+      ? await didsStorage.find(args.did)
+      : await didsStorage.getDefault();
+
+    if (!entry) {
+      const errorMsg = args.did
+        ? `No DID ${args.did} found`
+        : "No default DID found";
+      console.error(errorMsg);
+      process.exit(1);
+    }
+
+    const challenge = JSON.parse(args.challenge);
+    const tokenString = await signChallenge(challenge, entry, kms);
+
+    outputSuccess({ success: true, data: { token: tokenString } });
+  } catch (error) {
+    console.error(formatError(error));
+    process.exit(1);
+  }
+}
+
+module.exports = { signChallenge };
+
+// Run main if this script is executed directly (not imported as a module)
+if (require.main === module) {
+  main();
+}