Dependency upgrade + lib_um_crypto_rust (#78)

Co-authored-by: 鲁树人 <lu.shuren@um-react.app>
Co-committed-by: 鲁树人 <lu.shuren@um-react.app>

src/decrypt-worker/decipher/KugouMusic.ts

@@ -0,0 +1,33 @@
+import { DecipherInstance, DecipherOK, DecipherResult, Status } from '~/decrypt-worker/Deciphers';
+import { KuGou } from '@unlock-music/crypto';
+import type { DecryptCommandOptions } from '~/decrypt-worker/types.ts';
+import { chunkBuffer } from '~/decrypt-worker/util/buffer.ts';
+
+export class KugouMusicDecipher implements DecipherInstance {
+  cipherName = 'Kugou';
+
+  async decrypt(buffer: Uint8Array, _options: DecryptCommandOptions): Promise<DecipherResult | DecipherOK> {
+    let kgm: KuGou | undefined;
+
+    try {
+      kgm = KuGou.from_header(buffer.subarray(0, 0x400));
+
+      const audioBuffer = new Uint8Array(buffer.subarray(0x400));
+      for (const [block, offset] of chunkBuffer(audioBuffer)) {
+        kgm.decrypt(block, offset);
+      }
+
+      return {
+        status: Status.OK,
+        cipherName: this.cipherName,
+        data: audioBuffer,
+      };
+    } finally {
+      kgm?.free();
+    }
+  }
+
+  public static make() {
+    return new KugouMusicDecipher();
+  }
+}