UEA-Prodem

2026-06-10 12:38:42 -03:00
parent 3f33154e16
commit c41625e542
9352 changed files with 1128292 additions and 14752 deletions
@@ -0,0 +1,19 @@
+import { JOSENotSupported } from '../util/errors.js';
+export function bitLength(alg) {
+    switch (alg) {
+        case 'A128GCM':
+        case 'A128GCMKW':
+        case 'A192GCM':
+        case 'A192GCMKW':
+        case 'A256GCM':
+        case 'A256GCMKW':
+            return 96;
+        case 'A128CBC-HS256':
+        case 'A192CBC-HS384':
+        case 'A256CBC-HS512':
+            return 128;
+        default:
+            throw new JOSENotSupported(`Unsupported JWE Algorithm: ${alg}`);
+    }
+}
+export const generateIv = (alg) => crypto.getRandomValues(new Uint8Array(bitLength(alg) >> 3));