feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/@simplewebauthn/server/esm/helpers/iso/isoCBOR.js

@@ -0,0 +1,35 @@
+/**
+ * A runtime-agnostic collection of methods for working with CBOR encoding
+ * @module
+ */
+import * as tinyCbor from '@levischuck/tiny-cbor';
+/**
+ * Whatever CBOR encoder is used should keep CBOR data the same length when data is re-encoded
+ *
+ * MOST CRITICALLY, this means the following needs to be true of whatever CBOR library we use:
+ * - CBOR Map type values MUST decode to JavaScript Maps
+ * - CBOR tag 64 (uint8 Typed Array) MUST NOT be used when encoding Uint8Arrays back to CBOR
+ *
+ * So long as these requirements are maintained, then CBOR sequences can be encoded and decoded
+ * freely while maintaining their lengths for the most accurate pointer movement across them.
+ */
+/**
+ * Decode and return the first item in a sequence of CBOR-encoded values
+ *
+ * @param input The CBOR data to decode
+ * @param asObject (optional) Whether to convert any CBOR Maps into JavaScript Objects. Defaults to
+ * `false`
+ */
+export function decodeFirst(input) {
+    // Make a copy so we don't mutate the original
+    const _input = new Uint8Array(input);
+    const decoded = tinyCbor.decodePartialCBOR(_input, 0);
+    const [first] = decoded;
+    return first;
+}
+/**
+ * Encode data to CBOR
+ */
+export function encode(input) {
+    return tinyCbor.encodeCBOR(input);
+}