# ODIS file unpacker

> ODIS file unpacker extracts protected Java classes from ODIS plugin JARs and files from its DIDB data archives. The author traces AES class decryption and Blowfish ECB data decryption through debugging, a Java agent and decompiled class code; some extracted files also require GZIP decompression.

- Type: Tool
- Targets: App
- Category: JVM bytecode tools
- Relationship: Foundation tool
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-06
- Original resource: <https://github.com/kartoffelpflanze/ODIS-file-unpacker>
- Primary source: <https://github.com/kartoffelpflanze/ODIS-file-unpacker/blob/f2408cd2d9dbf4a812ccab058c5836598773fddd/README.md>
- Catalog page: <https://awesomerea.org/resources/odis-file-unpacker/>
- Record JSON: <https://awesomerea.org/resources/odis-file-unpacker/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/odis-file-unpacker/index.md)

## Requirements & limits

- **Prerequisites:** User-supplied ODIS plugin and DIDB data files.
- **Prerequisites:** Python with pycryptodome and blowfish installed.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/kartoffelpflanze/ODIS-file-unpacker/blob/f2408cd2d9dbf4a812ccab058c5836598773fddd/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.