JMR-devandClaude Opus 4.8
2dcfcf5631
On Windows, recover the Adobe ADEPT user key from an installed/activated Adobe Digital Editions and use it automatically, so ADEPT EPUBs decrypt with no --key argument. Ported from adobekey.py: * Build the DPAPI entropy byte-for-byte: system-volume serial number, CPUID leaf-0 vendor (EBX|EDX|ECX) and leaf-1 signature, and the ADE username, packed as ">I12s3s13s". * CryptUnprotectData (DPAPI) recovers the key-encryption-key from the HKCU\Software\Adobe\Adept\Device "key" value, then each per-credential privateLicenseKey under ...\Activation is AES-128-CBC decrypted and the DER RSA key taken from byte 26 onward. Decryption now lazily auto-extracts and retries when no supplied key fits, and newly found keys are written back to the TOML config so later runs are offline. Uses the `windows` (DPAPI/volume info) and `winreg` crates behind cfg(windows); pure-Rust crypto unchanged. Verified end-to-end on a real ADEPT EPUB: the key was extracted from the local ADE and the book decrypted to a valid, DRM-free EPUB (rights.xml and encryption.xml removed, content readable). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
67 lines
2.3 KiB
Markdown
67 lines
2.3 KiB
Markdown
# DRMLibre
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A standalone, single-binary command-line tool (written in Rust, no runtime
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dependencies) for removing DRM from **Amazon Kindle** and **Adobe Digital
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Editions** ebooks. The decryption logic is ported from
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[DeDRM_tools](https://github.com/noDRM/DeDRM_tools); DRMLibre is therefore
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licensed **GPL-3.0-or-later**. See [CREDITS.md](CREDITS.md).
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> Use DRMLibre only on books you own, to exercise your own rights (format
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> shifting, backup, accessibility). Respect the law in your jurisdiction.
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## Status
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Under active development. Supported / planned formats:
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| Capability | Status |
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|---|---|
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| Adobe ADEPT EPUB (+ hardening, B&N PassHash, font de-obfuscation) | ✅ done |
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| Kindle MOBI / AZW / AZW3 | ✅ done |
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| Adobe key auto-extraction from installed ADE (Windows, DPAPI) | ✅ done |
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| Kindle-for-PC key (`.kinf`) / Android / macOS auto-extraction | planned |
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| Kindle KFX-ZIP | planned |
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| Adobe PDF, Kindle Topaz, eReader, Kobo, LCP | out of scope |
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On Windows with Adobe Digital Editions activated, ADEPT EPUBs decrypt with no
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extra arguments — the key is extracted from the local install and cached in the
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config for later offline use.
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## Usage
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```
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drmlibre remove <files...> [options] # remove DRM
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drmlibre passhash ... # generate/extract Adobe/B&N PassHashes
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drmlibre config # summarize keys in the config file
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```
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Common `remove` options: `-o/--output`, `--outputdir`, `-f/--force`,
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`--overwrite`, `--serial`, `--pid`, `--key`, `--passphrase`, `--android-backup`,
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`--config` (default `./drmlibre.toml`).
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Examples:
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```
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# Adobe EPUB, using an exported Adobe key:
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drmlibre remove "My Book.epub" --key adobe.der -o "My Book (no DRM).epub"
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# Kindle eInk book, using the device serial:
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drmlibre remove "My Book.azw" --serial 0123456789ABCDEF
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```
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## Architecture
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A Cargo workspace:
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- `crates/drmlibre-core` — the UI-agnostic engine (format detection, key
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management, decryptors). No printing or process exits; everything is a
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`Result` and progress goes through `tracing`. This is what a future GUI links.
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- `crates/drmlibre-cli` — the `drmlibre` binary (argument parsing, file I/O
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policy, exit codes).
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## Building
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```
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cargo build --release # binary at target/release/drmlibre
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cargo test # run the test suite
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```
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