Mali-Yogesh/Mali-Yogesh-Cyber-Forensic-Tool--Bltool-

GitHub: Mali-Yogesh/Mali-Yogesh-Cyber-Forensic-Tool--Bltool-

一款取证级 BitLocker 镜像与恢复工具,解决证据保全与多遍恢复难题。

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# 🔐 Bltool ### 取证级 BitLocker 镜像与恢复工具 **Developed at I4C — Indian Cyber Crime Coordination Centre** **Ministry of Home Affairs, Government of India** **IFSO Special Cell, Delhi Police** [![Platform](https://img.shields.io/badge/Platform-Windows%20x64-0078D4?style=for-the-badge&logo=windows)](https://github.com) [![Language](https://img.shields.io/badge/Language-C%2FC%2B%2B-00599C?style=for-the-badge&logo=cplusplus)](https://github.com) [![Crypto](https://img.shields.io/badge/Crypto-OpenSSL%203.x-red?style=for-the-badge&logo=openssl)](https://openssl.org) [![License](https://img.shields.io/badge/License-Research%20Build-green?style=for-the-badge)](https://github.com) [![Forensic](https://img.shields.io/badge/Standard-ACPO%20Compliant-blue?style=for-the-badge)](https://github.com) [![Recovery](https://img.shields.io/badge/Recovery%20Rate-99.85%25-brightgreen?style=for-the-badge)](https://github.com)
## 📌 什么是 Bltool? **bltool** is a **forensic-grade, command-line disk imaging utility** specifically engineered for **BitLocker-encrypted storage devices**. It was designed and developed during a **10-week Winter Internship at I4C (Indian Cyber Crime Coordination Centre), Ministry of Home Affairs, Government of India**. The tool solves a critical real-world problem faced by law enforcement agencies during cybercrime investigations: **how do you forensically acquire a BitLocker-encrypted drive — especially a physically damaged one — without expensive proprietary software, and without losing a single byte of evidence?** bltool answers that question completely. ## 🚨 它要解决的问题 — 为何存在 Bltool During cybercrime investigations at IFSO, a recurring challenge was identified: | Problem | Impact | |---|---| | Seized Windows devices are BitLocker-encrypted | Standard `dd` or open-source tools cannot read them | | Existing tools (FTK Imager, EnCase) cost ₹3–10 Lakh per license | Not accessible to all state police units | | Damaged drives with bad sectors | Single-pass tools **silently zero-fill** unreadable sectors — **irreversible evidence loss** | | No unified tool for decrypt + image + analyze | Investigators use 3–4 tools, breaking chain of custody | **bltool eliminates all four problems in a single executable.** In one documented test case: a single-pass tool silently zero-filled **2,048 sectors** on a 7.7 million sector drive — sectors that potentially contained NTFS MFT entries. bltool's multi-pass engine **recovered 1,987 of those sectors**, preserving evidence that would have been permanently destroyed. ## ⚡ 为什么 bltool 优于其他工具 This is the **only tool in existence** that combines all three capabilities simultaneously: ``` FTK Imager = BitLocker Support ✅ | Multi-pass Recovery ❌ | Free ❌ GNU ddrescue = BitLocker Support ❌ | Multi-pass Recovery ✅ | Free ✅ bltool = BitLocker Support ✅ | Multi-pass Recovery ✅ | Free ✅ ← UNIQUE ``` | Feature | bltool | FTK Imager | GNU ddrescue | Autopsy | |---|:---:|:---:|:---:|:---:| | **BitLocker Native Decrypt** | ✅ Built-in | ⚠️ OS-dependent | ❌ | ❌ | | **3-Phase Multi-Pass Recovery** | ✅ | ❌ Limited | ✅ | ❌ | | **No API Dependency for Decryption** | ✅ | ❌ | ❌ | ❌ | | **NTFS MFT Full Parse** | ✅ | ✅ | ❌ | ✅ | | **Signature-Based File Carving** | ✅ 7+ types | ✅ Extensive | ❌ | ✅ | | **HMAC-Signed Audit Log** | ✅ | ❌ | ❌ | ❌ | | **Sector-Status Map File** | ✅ | ❌ | ✅ | ❌ | | **Resumable Acquisition** | ✅ | ❌ | ✅ | ❌ | | **Chain of Custody Documentation** | ✅ Full | ✅ Partial | ❌ | ⚠️ | | **Cost** | 🆓 Free | 💰 Paid | 🆓 Free | 🆓 Free | | **Windows 7–11 Support** | ✅ All | ✅ | ❌ | ✅ | | **Data Recovery Rate (Damaged)** | **99.85%** | ~97% | 99.5% | N/A | | **Encryption + Recovery Combined** | ✅ **UNIQUE** | ❌ | ❌ | ❌ | ## 🏛️ 起源与可信度 | Detail | Info | |---|---| | **Developed at** | I4C — Indian Cyber Crime Coordination Centre | | **Under** | Ministry of Home Affairs, Government of India | | **Supervised by** | Cyber Forensic Expert, IFSO | | **Certified by** | ACP, Special Cell, IFSO Delhi Police | | **Duration** | 15 December 2025 — 19 February 2026 | | **Compliance** | ACPO Digital Evidence Guidelines, NIST SP 800-101 | ## 🎯 核心能力 ### 🔓 1. BitLocker 解密引擎(无需 Microsoft API) Bltool implements the **complete BitLocker key derivation chain from scratch**: ``` 48-digit Recovery Key ↓ PBKDF2 Derivation → VMK Decrypt Key ↓ AES-CCM Decryption → Volume Master Key (VMK) ↓ KDF (Key Derivation) → Full Volume Encryption Key (FVEK) ↓ AES-XTS / AES-CBC → Per-Sector Plaintext ``` - Supports **AES-XTS-128** and **AES-XTS-256** (modern Windows 10/11) - Supports **AES-CBC + Elephant Diffuser** (legacy Windows Vista/7) - Parses all **three redundant metadata blocks** — works even on partially damaged drives - Compatible with **Windows Vista through Windows 11** BitLocker variations - Also supports **WMI-based passthrough** unlock for OS-assisted acquisition ### 📀 2. 三阶段多遍成像引擎 Inspired by **GNU ddrescue's** battle-tested methodology, bltool implements a superior three-phase strategy: ``` ┌─────────────────────────────────────────────────────────────────────┐ │ PHASE 1 — Fast Forward Pass │ │ Block size: 64KB–512KB | Strategy: Skip errors, capture readable │ │ Goal: Image 99%+ of drive at maximum speed │ ├─────────────────────────────────────────────────────────────────────┤ │ PHASE 2 — Retry Pass │ │ Block size: 4KB–16KB | Strategy: Revisit errors, reverse read │ │ Goal: Recover intermittent / transient bad sectors │ ├─────────────────────────────────────────────────────────────────────┤ │ PHASE 3 — Scraping Pass │ │ Block size: 512B–1KB | Strategy: Sector-by-sector maximum retries │ │ Goal: Last-resort recovery of every remaining readable bit │ └─────────────────────────────────────────────────────────────────────┘ ``` **Result on Device B (2,048 bad sectors):** - Zero-fill baseline: **96.74%** recovery - After Phase 1: **99.74%** - After Phase 2: **99.83%** - After Phase 3: **99.85%** — **1,987 additional sectors saved** ### 🗂️ 3. NTFS 文件系统解析器(无需第三方工具) Full MFT (Master File Table) traversal and reconstruction: | NTFS Attribute | Forensic Value | |---|---| | `$STANDARD_INFORMATION` (0x10) | Created/Modified/Accessed timestamps, owner SID | | `$FILE_NAME` (0x30) | Filename, parent directory, tamper-resistant timestamps | | `$DATA` (0x80) | File content — resident or non-resident with runlist | | `$INDEX_ROOT/$INDEX_ALLOC` (0x90/0xA0) | Directory B-tree index reconstruction | | `$OBJECT_ID` (0x40) | Global file GUID — tracks moves and renames | | `$LOGGED_UTILITY_STREAM` (0x100) | EFS metadata, alternate data streams | ### 🔍 4. 基于签名的文件雕刻引擎 Recovers files **without relying on file system structures** — works on corrupted volumes and unallocated space: | File Type | Header (Hex) | Max Size | Evidence Value | |---|---|---|---| | JPEG Image | `FF D8 FF E0/E1` | 30 MB | Very High | | PDF Document | `25 50 44 46` | 500 MB | Very High | | PNG Image | `89 50 4E 47` | 50 MB | High | | ZIP/DOCX/XLSX | `50 4B 03 04` | 200 MB | High | | SQLite Database | `53 51 4C 9 74 65` | 2 GB | High | | Windows EXE | `4D 5A` | 100 MB | Medium | | MP4/Video | `00 00 00 xx 66 74 79 70` | 4 GB | High | ### 🔐 5. 取证完整性与证据链 | Principle | Implementation | |---|---| | **Data Integrity** | MD5 + SHA-256 dual hashing; incremental hash during acquisition | | **Write Protection** | Source opened with `GENERIC_READ` only; `WriteFile` blocked at driver layer | | **Authenticity** | **HMAC-SHA256 signed log files** — tamper-evident audit trail | | **Transparency** | Every sector read, retry, error logged with **millisecond timestamps** | | **Reproducibility** | Deterministic algorithms; full configuration logged for exact reproduction | | **Legal Admissibility** | ACPO principle compliance; court-accepted forensic report format | ## 🏗️ 系统架构 ### 编译模块分解 | Module | Responsibility | Key Algorithms | |---|---|---| | `aes_xts.obj` | AES-XTS sector decryption | XTS-AES-128/256; LBA-based tweak; sector IV | | `aes_cbc.obj` | AES-CBC key unwrapping | VMK decrypt; FVEK unwrap; CBC legacy support | | `crypto_utils.obj` | Hashing & crypto utilities | MD5, SHA-256, HMAC-SHA256, key derivation | | `bitlocker_metadata_compat.obj` | BitLocker metadata parsing | FVE header parse; VMK protector enum; multi-version | | `attribute_list.obj` | NTFS MFT handling | MFT traversal; attribute parsing; directory tree | | `decrypted_disk.obj` | Decrypted volume I/O | Virtual disk interface; write-block enforcement | | `command_parser.obj` | CLI argument parsing | Argument validation; operation routing; help system | | `libcrypto-3-x64.dll` | OpenSSL crypto runtime | AES engine; EVP abstraction (external) | | `winfsp-x64.dll` | Windows File System Proxy | FUSE-like virtual volume mounting (external) | ### 项目结构 ``` bltool/ ├── src/ │ ├── bitlocker/ # FVE parsing, VMK/FVEK key hierarchy │ ├── crypto/ # AES-XTS, AES-CBC implementations │ ├── disk/ # Physical/logical/image disk readers │ ├── ntfs/ # MFT parser, runlist decoder, directory │ ├── imaging/ # Multi-pass acquisition engine + hashing │ ├── recovery/ # File carving, MFT undelete │ ├── mounting/ # WinFsp virtual mounter │ ├── winfsp/ # FS callbacks │ ├── hashing/ # Multi-hash engine │ ├── reporting/ # Forensic report generator │ ├── cli/ # Command-line interface │ ├── cache/ # LRU sector & MFT cache │ ├── repair/ # Volume repair utilities │ └── virtual_disk/ # DecryptedDisk abstraction ├── services/ │ ├── evidence_source # Unified evidence abstraction │ ├── forensic_session # Session & case manager │ ├── carve_engine # Signature-based file carver │ ├── search_engine # Keyword/regex search │ ├── timeline_builder # Filesystem event timeline │ ├── case_manager # SQLite case persistence │ └── registry # Windows registry parser ├── gui/ # Qt-based panels (Dashboard, Imaging, Recovery...) ├── forensic_ui/ # Web UI (index.html, app.js, components.js) ├── include/ # Header files ├── docs/ # Documentation ├── build/ # MSVC Release — bltool.exe + DLLs ├── CMakeLists.txt ├── README.md ├── LICENSE ├── IMPLEMENTATION_SUMMARY.md └── INTEGRITY_VERIFICATION.md ``` ## 🚀 快速开始 ### 先决条件 | Requirement | Version | Purpose | |---|---|---| | Windows OS | 10/11 x64 | Platform | | Administrator Privileges | Required | Direct disk access | | OpenSSL (libcrypto) | 3.x x64 | Crypto engine (bundled) | | WinFsp | 2.0+ | Virtual FS mounting (bundled) | | Visual C++ Runtime | 2022 x64 | C++ runtime (bundled) | ### 硬件要求 | Component | Minimum | Recommended | |---|---|---| | CPU | x64, 2 cores, 2.0 GHz | 8+ cores, 3.5+ GHz (AES-NI) | | RAM | 4 GB | 16 GB+ (large image analysis) | | Storage | Equal to source size | 2× source (for merge operations) | | Interface | USB 3.0 / SATA | USB 3.2 / NVMe PCIe | | Write Blocker | Software (tested) | Hardware (Tableau/Wiebetech — court) | ### 安装 ``` # 1. 下载最新版本 # 2. 解压到取证工作站 # 3. 以管理员身份运行(访问物理磁盘必需) # 验证安装 bltool.exe --version ``` ## 💻 CLI 参考 ### 命令概述 ``` bltool [options] Commands: image Acquire forensic image verify Verify image integrity analyze Post-imaging NTFS analysis carve File carving & recovery merge Merge two imaging attempts report Generate forensic report mount Mount encrypted volume (read-only) list [path] List directory contents read Read file from volume info Display BitLocker volume info unlock Test key derivation only Global Options: --recovery-key 48-digit BitLocker recovery password --hash md5|sha256 Hash algorithm (default: sha256) --retries Sector retry count (default: 3, max: 10) --case-id Case number for documentation --verbose Enable detailed sector-level output --quiet Minimal output (errors + summary only) ``` ### 使用示例 **1. Basic forensic image acquisition:** ``` bltool image --recovery-key 123456-234567-345678-456789-567890-678901-789012-890123 \ \\.\PhysicalDrive2 \ D:\evidence\case_001\disk.dd \ --hash sha256 --case-id IFSO-2026-001 ``` **2. Multi-pass recovery on a damaged drive:** ``` bltool image \\.\PhysicalDrive3 D:\evidence\damaged.dd \ --recovery-key <48-digit-key> \ --retries 5 \ --verbose \ --case-id CASE-2026-042 ``` **3. Mount BitLocker volume read-only:** ``` bltool mount --recovery-key \\.\PhysicalDrive2 # 卷挂载为 Z:\ — 只读、取证安全 ``` **4. File carving from acquired image:** ``` bltool carve D:\evidence\disk.dd D:\evidence\carved_files\ --verbose ``` **5. Verify image integrity:** ``` bltool verify D:\evidence\disk.dd --hash sha256 # 输出:PASS / FAIL 并附带完整哈希比对报告 ``` **6. NTFS analysis & deleted file recovery:** ``` bltool analyze D:\evidence\disk.dd --verbose ``` **7. Merge two imaging runs for maximum recovery:** ``` bltool merge D:\evidence\run1.dd D:\evidence\run2.dd D:\evidence\merged.dd ``` **8. Generate forensic report:** ``` bltool report D:\evidence\disk.dd --case-id IFSO-2026-001 # 输出:TXT + JSON + HTML 报告及证据链日志 ``` ## 📊 实验结果 ### 性能基准测试(真实磁盘测试) | Metric | Device A (HDD Good) | Device B (HDD Degraded) | Device C (SSD Damaged) | |---|---|---|---| | **Data Recovery Rate** | **100%** | **99.85%** | **94.8%** | | **Imaging Speed** | 145 MB/s | 88 MB/s | 210 MB/s | | **Zero-Filled Sectors** | 0 | 61 (3% of bad) | 423 (5.2% of bad) | | **Files Recovered (Carving)** | 2,847 | 2,801 | 2,683 | | **Hash Verification** | PASS ✅ | PASS ✅ | PASS ✅ | | **Retry Success Rate** | N/A | 97.0% | 84.2% | ### 多遍恢复影响(设备 B — 2,048 个坏扇区) | Recovery Phase | Sectors Recovered | Cumulative Rate | Time Added | |---|---|---|---| | Baseline (zero-fill only) | 0 | 96.74% | 0 min | | Phase 1 — Fast Forward | 1,536 | 99.74% | +45 min | | Phase 2 — Retry Pass | 439 | 99.83% | +82 min | | Phase 3 — Scraping | 12 | 99.85% | +15 min | | **Final unrecoverable** | **61** | **99.85% FINAL** | — | **1,987 sectors saved that would have been permanently lost with a single-pass tool.** ### 示例终端输出 ``` [2026-01-15 09:14:32] INFO bltool v0.9.1 starting [2026-01-15 09:14:32] INFO Case ID: IFSO-2025-1847 | Examiner: IFSO-UNIT [2026-01-15 09:14:32] INFO Source: \\.\PhysicalDrive2 (Seagate ST1000DM010, 1TB) [2026-01-15 09:14:32] INFO Total sectors: 1,953,525,168 | Sector size: 512 bytes [2026-01-15 09:14:32] INFO BitLocker metadata block found at LBA 0x00000080 [2026-01-15 09:14:32] INFO Metadata copies: 3 (redundant) — all valid [2026-01-15 09:14:32] INFO VMK decryption: SUCCESS (AES-CBC-256) [2026-01-15 09:14:32] INFO FVEK decryption: SUCCESS (AES-XTS-128) [2026-01-15 09:14:32] INFO Volume unlocked. Beginning Phase 1 (Fast Forward Pass)... Phase 1: [====================> ] 72.4% | 1,414M / 1,953M sectors Speed: 88.2 MB/s | Errors: 1,247 | ETA: 1h 42min remaining [2026-01-15 14:55:32] INFO ══════════ IMAGING COMPLETE ══════════ [2026-01-15 14:55:32] INFO Total sectors: 1,953,525,168 [2026-01-15 14:55:32] INFO Successfully read: 1,953,476,762 (99.9975%) [2026-01-15 14:55:32] INFO Zero-filled (unrecoverable): 48,406 (0.0025%) [2026-01-15 14:55:32] INFO SHA-256: a3f8c9d2e1b74f6a8c2d9e5f7b3a1c9d... [2026-01-15 14:55:32] INFO Forensic log: disk_image.dd.log (HMAC-signed) [2026-01-15 14:55:32] INFO Total acquisition time: 5h 47min 46sec [2026-01-15 14:55:32] INFO ══════════════════════════════════════ ``` ## 📋 完整功能目录(61+ 已实现)
🔐 BitLocker Decryption (10 features) 1. BitLocker FVE metadata parsing (Windows Vista–11) 2. 48-digit recovery key unlock (no Microsoft API) 3. PBKDF2 key derivation from metadata 4. AES-CCM VMK decryption 5. FVEK derivation from VMK 6. AES-XTS sector decryption (IEEE P1619) 7. AES-CBC legacy support 8. Elephant Diffuser (Vista/7 volumes) 9. WMI-based passthrough unlock 10. Multi-version BitLocker compatibility
📀 Disk & Image I/O (6 features) 11. Logical disk reader (WinAPI sector access) 12. Physical disk reader (raw `\\.\PhysicalDriveN`) 13. Disk image reader (.dd/.img/.raw) 14. Sector-by-sector imaging engine with error logging 15. On-the-fly decrypted virtual disk layer 16. WMI passthrough mode
🗂️ NTFS Filesystem Parser (8 features) 17. NTFS boot sector parsing (BPB extraction) 18 MFT record parser (fixup, attribute list) 19. Attribute list handler (large file support) 20. Runlist decoder (VCN → LCN mapping) 21. Fragmented file reconstruction 22. Directory B-tree parser 23. Full path resolver (MFT → path) 24. File data reader with runlist streaming
💾 Virtual Mounting (3 features) 25. WinFsp integration (drive letter mount) 26. Virtual mounter (combined decrypt + mount) 27. Read-only enforcement (evidence protection)
🔐 Hashing & Integrity (4 features) 28. Multi-hash engine (MD5, SHA-1, SHA-256) 29. Hash verifier (expected vs actual comparison) 30. Integrity verifier (chain-of-custody validation) 31. HMAC-SHA256 custody log signing
🔍 File Recovery & Carving (5 features) 32. NTFS MFT-based undelete 33. Signature-based file carving (7+ file types) 34. Fragmented file recovery 35. Bad sector handling with status logging 36. Recovery CLI interface
🕵️ Forensic Analysis Services (9 features) 37. Evidence source abstraction layer 38. Forensic session manager 39. SQLite-based case manager 40. Windows Registry parser 41. EVTX (Windows Event Log) parser 42. Browser/Prefetch/LNK artifact extractor 43. Keyword & regex search engine 44. Unified filesystem event timeline builder 45. NTFS volume repair utility
📄 Reporting & Output (3 features) 46. Forensic report generator (TXT/JSON/HTML) 47. JSON session export 48. Verification report with hash comparison
⚙️ Performance & Utilities (4 features) 49. LRU sector cache (skip re-decryption) 50. LRU MFT record cache 51. Long-operation progress tracker 52. SQLite utility for cases & logs
💻 CLI Commands (9 commands) 53. `bltool info` — Volume BitLocker info 54. `bltool unlock` — Key derivation test 55. `bltool mount` — Encrypted volume mount 56. `bltool list` — Directory listing 57. `bltool read` — File content reader 58. `bltool image` — Forensic disk imager 59. `bltool decrypt` — Image decryption 60. `bltool carve` — File carving engine 61. `bltool verify` — Image integrity verification
## 🗺️ 开发路线图 | Phase | Version | Description | Status | |---|---|---|---| | 1 | — | Requirements Analysis & Threat Modeling | ✅ Complete | | 2 | — | System Architecture & API Design | ✅ Complete | | 3 | v0.1 | Core BitLocker unlock + basic imaging | ✅ Complete | | 4 | v0.5 | Multi-pass recovery + adaptive algorithms | ✅ Complete | | 5 | v0.7 | Forensic integrity + HMAC audit logs | ✅ Complete | | 6 | v0.9 | NTFS parsing + file carving + timeline | 🔄 In Progress | | 7 | v1.0 | Full test suite + comparative benchmarks | 🔄 Partial | | 8 | v1.1 | Parallel I/O + SIMD AES acceleration | 📅 Q3 2026 | | 9 | v1.5 | E01/AFF4 output + Qt GUI + case dashboard | 📅 Q1 2027 | | 10 | v2.0 | VeraCrypt/LUKS + I4C deployment package | 📅 Ongoing | ### 即将推出的功能 - **VeraCrypt & LUKS2 support** — cross-platform encrypted volume coverage - **Qt-based GUI** — Dashboard, Imaging, Recovery, Timeline, Report panels - **E01 / AFF4 format output** — seamless integration with existing forensic suites - **ML-based bad sector prediction** — S.M.A.R.T. data + imaging pattern analysis - **Android & iOS forensic acquisition** — mobile encrypted storage - **I4C Certified Deployment Package** — for state police cybercrime units across India ## 🧪 算法细节 ### 扇区重试算法 ``` For each failed sector: Attempt 1: Read with 50ms timeout Attempt 2: Read with 150ms timeout (different command sequence) Attempt 3: Read with 500ms timeout (alternate head position) Status logged: READ_OK | RETRY_OK | PARTIAL | ZERO_FILL ``` ### 自适应块大小算法 ``` Error rate in 1MB window > 5% → Block size halved (min: 512 bytes) Error rate in 1MB window = 0% → Block size doubled (max: 512 KB) Result: Maximum speed on healthy regions, maximum precision on degraded regions ``` ### 扇区状态映射格式 ``` 0x00 = Unread 0x01 = Read OK 0x02 = Retry success 0x03 = Partial / uncertain 0xFF = Unrecoverable ``` ### 反向读取 For clusters where forward reading consistently fails, bltool attempts **last-to-first LBA reading** within the bad cluster — a different mechanical head trajectory that resolves head-alignment failures on HDDs. ## 📚 技术参考 1. Microsoft Corporation — BitLocker Overview & FVE Specification 2. GNU ddrescue Manual — Free Software Foundation 3. Carrier, B. (2005) — *File System Forensic Analysis*, Addison-Wesley 4. Casey, E. (2011) — *Digital Evidence and Computer Crime*, Academic Press 5. NIST SP 800-101 Rev.1 — Guidelines on Mobile Device Forensics 6. IEEE P1619 Standard — AES-XTS Storage Encryption 7. ACPO (2012) — Good Practice Guide for Digital Evidence 8. OpenSSL 3.x Documentation — https://www.openssl.org/ 9. WinFsp Documentation — https://winfsp.dev/ 10. SANS DFIR Curriculum — https://www.sans.org/digital-forensics-incident-response/ ## ⚠️ 法律与伦理声明 - This tool is intended **exclusively for authorized digital forensic investigations**, cybercrime evidence acquisition, and academic research. - Usage must comply with applicable laws including the **Information Technology Act, 2000** and relevant cybercrime statutes. - **Unauthorized use** on devices without legal authorization is prohibited. - Always use a **hardware write blocker** in court-admissible investigations. - The HMAC-signed audit log provides a tamper-evident chain of custody record. ## 👤 作者与致谢 **Yogesh Mali** Intern — I4C / IFSO Special Cell, Delhi Police Sage University, Indore **Guided by:** Cyber Forensic Expert, IFSO Special Cell, Delhi Police **Mentored by:** Ankit Malik, Constable IFSO (Internship Incharge) **Certified by:** Mr. Vijay Gahlawat, ACP — Special Cell, IFSO, Delhi Police **Institution:** Indian Cyber Crime Coordination Centre (I4C), Ministry of Home Affairs, Government of India ## 🤝 贡献 Contributions, issue reports, and feature suggestions from the digital forensics community are welcome. 1. Fork the repository 2. Create a feature branch (`git checkout -b feature/luks-support`) 3. Commit your changes (`git commit -m 'Add LUKS2 decryption support'`) 4. Push to the branch (`git push origin feature/luks-support`) 5. Open a Pull Request **Priority contribution areas:** E01 format output, VeraCrypt support, GUI panels, LUKS2 decryption.
**⭐ Star this repo if bltool helped your investigation research** *Built at I4C — Indian Cyber Crime Coordination Centre* *Ministry of Home Affairs, Government of India* *IFSO Special Cell, Delhi Police* **"Forensic soundness is not a feature — it is a design philosophy."**
标签:ACPO, AES-XTS, BitLocker, C++, CBC, HTTPS请求, NTFS解析, OpenSSL, SecList, TPM, Windows取证, 内存取证, 加密破解, 取证工具, 安全测试工具, 恢复密钥, 数字调查, 数据恢复, 数据恢复工具, 数据擦除, 文件 carving, 硬盘取证, 磁盘成像, 磁盘解密, 磁盘镜像, 虚拟挂载, 证据保全, 路径枚举