修改后台权限

node_modules/jose/dist/webapi/lib/signing.js

@@ -0,0 +1,68 @@
+import { JOSENotSupported } from '../util/errors.js';
+import { checkSigCryptoKey } from './crypto_key.js';
+import { invalidKeyInput } from './invalid_key_input.js';
+export function checkKeyLength(alg, key) {
+    if (alg.startsWith('RS') || alg.startsWith('PS')) {
+        const { modulusLength } = key.algorithm;
+        if (typeof modulusLength !== 'number' || modulusLength < 2048) {
+            throw new TypeError(`${alg} requires key modulusLength to be 2048 bits or larger`);
+        }
+    }
+}
+function subtleAlgorithm(alg, algorithm) {
+    const hash = `SHA-${alg.slice(-3)}`;
+    switch (alg) {
+        case 'HS256':
+        case 'HS384':
+        case 'HS512':
+            return { hash, name: 'HMAC' };
+        case 'PS256':
+        case 'PS384':
+        case 'PS512':
+            return { hash, name: 'RSA-PSS', saltLength: parseInt(alg.slice(-3), 10) >> 3 };
+        case 'RS256':
+        case 'RS384':
+        case 'RS512':
+            return { hash, name: 'RSASSA-PKCS1-v1_5' };
+        case 'ES256':
+        case 'ES384':
+        case 'ES512':
+            return { hash, name: 'ECDSA', namedCurve: algorithm.namedCurve };
+        case 'Ed25519':
+        case 'EdDSA':
+            return { name: 'Ed25519' };
+        case 'ML-DSA-44':
+        case 'ML-DSA-65':
+        case 'ML-DSA-87':
+            return { name: alg };
+        default:
+            throw new JOSENotSupported(`alg ${alg} is not supported either by JOSE or your javascript runtime`);
+    }
+}
+async function getSigKey(alg, key, usage) {
+    if (key instanceof Uint8Array) {
+        if (!alg.startsWith('HS')) {
+            throw new TypeError(invalidKeyInput(key, 'CryptoKey', 'KeyObject', 'JSON Web Key'));
+        }
+        return crypto.subtle.importKey('raw', key, { hash: `SHA-${alg.slice(-3)}`, name: 'HMAC' }, false, [usage]);
+    }
+    checkSigCryptoKey(key, alg, usage);
+    return key;
+}
+export async function sign(alg, key, data) {
+    const cryptoKey = await getSigKey(alg, key, 'sign');
+    checkKeyLength(alg, cryptoKey);
+    const signature = await crypto.subtle.sign(subtleAlgorithm(alg, cryptoKey.algorithm), cryptoKey, data);
+    return new Uint8Array(signature);
+}
+export async function verify(alg, key, signature, data) {
+    const cryptoKey = await getSigKey(alg, key, 'verify');
+    checkKeyLength(alg, cryptoKey);
+    const algorithm = subtleAlgorithm(alg, cryptoKey.algorithm);
+    try {
+        return await crypto.subtle.verify(algorithm, cryptoKey, signature, data);
+    }
+    catch {
+        return false;
+    }
+}