initial commit

server/node_modules/jose/dist/node/esm/runtime/verify.js

@@ -0,0 +1,36 @@
+import * as crypto from 'crypto';
+import { promisify } from 'util';
+import nodeDigest from './dsa_digest.js';
+import nodeKey from './node_key.js';
+import sign from './sign.js';
+import getVerifyKey from './get_sign_verify_key.js';
+import { oneShotCallback } from './flags.js';
+let oneShotVerify;
+if (crypto.verify.length > 4 && oneShotCallback) {
+    oneShotVerify = promisify(crypto.verify);
+}
+else {
+    oneShotVerify = crypto.verify;
+}
+const verify = async (alg, key, signature, data) => {
+    const keyObject = getVerifyKey(alg, key, 'verify');
+    if (alg.startsWith('HS')) {
+        const expected = await sign(alg, keyObject, data);
+        const actual = signature;
+        try {
+            return crypto.timingSafeEqual(actual, expected);
+        }
+        catch {
+            return false;
+        }
+    }
+    const algorithm = nodeDigest(alg);
+    const keyInput = nodeKey(alg, keyObject);
+    try {
+        return await oneShotVerify(algorithm, data, keyInput, signature);
+    }
+    catch {
+        return false;
+    }
+};
+export default verify;