init

2025-05-19 20:36:21 -05:00
commit f5303487be
1865 changed files with 260387 additions and 0 deletions
@@ -0,0 +1,31 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.pkcs7Strip = exports.pkcs7Pad = void 0;
+function pkcs7Pad(data) {
+    const padder = 16 - (data.length % 16);
+    const result = new Uint8Array(data.length + padder);
+    result.set(data);
+    for (let i = data.length; i < result.length; i++) {
+        result[i] = padder;
+    }
+    return result;
+}
+exports.pkcs7Pad = pkcs7Pad;
+function pkcs7Strip(data) {
+    if (data.length < 16) {
+        throw new TypeError('PKCS#7 invalid length');
+    }
+    const padder = data[data.length - 1];
+    if (padder > 16) {
+        throw new TypeError('PKCS#7 padding byte out of range');
+    }
+    const length = data.length - padder;
+    for (let i = 0; i < padder; i++) {
+        if (data[length + i] !== padder) {
+            throw new TypeError('PKCS#7 invalid padding byte');
+        }
+    }
+    return new Uint8Array(data.subarray(0, length));
+}
+exports.pkcs7Strip = pkcs7Strip;
+//# sourceMappingURL=padding.js.map