feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/@simplewebauthn/server/script/metadata/verifyJWT.js

@@ -0,0 +1,40 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.verifyJWT = verifyJWT;
+const convertX509PublicKeyToCOSE_js_1 = require("../helpers/convertX509PublicKeyToCOSE.js");
+const index_js_1 = require("../helpers/iso/index.js");
+const cose_js_1 = require("../helpers/cose.js");
+const verifyEC2_js_1 = require("../helpers/iso/isoCrypto/verifyEC2.js");
+const verifyRSA_js_1 = require("../helpers/iso/isoCrypto/verifyRSA.js");
+/**
+ * Lightweight verification for FIDO MDS JWTs. Supports use of EC2 and RSA.
+ *
+ * If this ever needs to support more JWS algorithms, here's the list of them:
+ *
+ * https://www.rfc-editor.org/rfc/rfc7518.html#section-3.1
+ *
+ * (Pulled from https://www.rfc-editor.org/rfc/rfc7515#section-4.1.1)
+ */
+function verifyJWT(jwt, leafCert) {
+    const [header, payload, signature] = jwt.split('.');
+    const certCOSE = (0, convertX509PublicKeyToCOSE_js_1.convertX509PublicKeyToCOSE)(leafCert);
+    const data = index_js_1.isoUint8Array.fromUTF8String(`${header}.${payload}`);
+    const signatureBytes = index_js_1.isoBase64URL.toBuffer(signature);
+    if ((0, cose_js_1.isCOSEPublicKeyEC2)(certCOSE)) {
+        return (0, verifyEC2_js_1.verifyEC2)({
+            data,
+            signature: signatureBytes,
+            cosePublicKey: certCOSE,
+            shaHashOverride: cose_js_1.COSEALG.ES256,
+        });
+    }
+    else if ((0, cose_js_1.isCOSEPublicKeyRSA)(certCOSE)) {
+        return (0, verifyRSA_js_1.verifyRSA)({
+            data,
+            signature: signatureBytes,
+            cosePublicKey: certCOSE,
+        });
+    }
+    const kty = certCOSE.get(cose_js_1.COSEKEYS.kty);
+    throw new Error(`JWT verification with public key of kty ${kty} is not supported by this method`);
+}