{
  "added_at": "2026-11-06",
  "additional_evidence_urls": [
    "https://github.com/andrewseago/d3200-ble-note-downloader/blob/77356096b303bd8b68364ae21db2acd8194ac1ee/docs/BLE_DECRYPTION_GUIDE.md"
  ],
  "category": "reconstruction-cases",
  "description_en": "A Soundcore D3200 investigation reconstructs the BLE exchange used to list and transfer encrypted recordings. Its Python client performs a P-256 ECDH handshake, derives session and file keys, decrypts AES-256-CTR Opus packets and writes an Ogg/Opus file.",
  "description_zh": "该研究重建 Soundcore D3200 通过 BLE 列出和传输加密录音的消息流程。Python 客户端执行 P-256 ECDH 握手、派生会话与文件密钥、解密 AES-256-CTR Opus 数据包，并生成 Ogg/Opus 文件。",
  "entry_url": "https://awesomerea.org/resources/soundcore-d3200-ble-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/soundcore-d3200-ble-case/",
  "evidence_url": "https://github.com/andrewseago/d3200-ble-note-downloader/blob/77356096b303bd8b68364ae21db2acd8194ac1ee/README.md",
  "group": "cases",
  "id": "soundcore-d3200-ble-case",
  "json_url": "https://awesomerea.org/resources/soundcore-d3200-ble-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/soundcore-d3200-ble-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/soundcore-d3200-ble-case/index.md",
  "name": "Soundcore D3200: reconstructing BLE recording transfer and decryption",
  "name_zh": "Soundcore D3200：重建 BLE 录音传输与解密流程",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "testing",
    "license"
  ],
  "requirements": [
    "Python 3.12 or newer, a Bluetooth adapter and an available D3200 recorder are required.",
    "The recorder must be disconnected from the Soundcore app before connecting.",
    "A real-recording regression test requires the user's own capture fixtures.",
    "GPL-3.0-or-later licence."
  ],
  "requirements_zh": [
    "需要 Python 3.12 或更新版本、蓝牙适配器及可连接的 D3200 录音机。",
    "连接前须让录音机断开 Soundcore 应用。",
    "真实录音回归测试需要用户自行提供采集样本。",
    "采用 GPL-3.0-or-later 许可证。"
  ],
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/andrewseago/d3200-ble-note-downloader",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}