# FACTUM-NOTES

Cryptographically Secured Forensic Logging Utility

![Logo](resources/gemini-logo.png)


## ABSTRACT

**Factum-Notes** is a note-taking application built for the demands of a forensic investigation. It addresses the requirement for integrity within the analytic process by implementing immediate cryptographic signing of all analyst entries, while this is optional and configurable by the analyst.

Designed for operation in forensic-grade, air-gapped environments, the system ensures that every note, observation is timestamped, hashed, and optionally signed via GPG upon creation. This architecture provides a verifiable, court-admissible audit trail, ensuring that the investigative timeline remains immutable and tamper-proof.


## GUI Draft

![Image](resources/gui-mockup.png)

***Work in progress:***
*This is a mockup how the GUI would look, drafted with Claude.*

## DESIGN

The design of Factum-Notes prioritizes integrity and fast input.

### Integrity Functions

* **Hashing:** All entries along with their timestamp are immediately SHA-256 hashed.
* **Cryptographic Signing:** The hashes are signed using the analyst's provided GPG/PGP key.

### User Interface

The program has multiple ways to interact with it:

* **Command Line:** Quick data entry and rapid logging during working in the terminal, while never switching from the terminal.

```bash
factum "This note is immediately saved into the currently active case. When the IP address 123.45.67.89 is contained in the note, it will also show up in the IoC Panel. We can also assign #tags for any note which enables efficient retreival"
```

* **Graphical Interface:** PySide6 interface for case management, review and anything else which might be implemented.


## COPYRIGHT & LICENSE

Copyright © 2025

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

**THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.**