SecArsenalSeed recovery tool for PRNGs.
Platforms: Linux · Last verified September 6, 2026
Seed recovery tool for PRNGs.
Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.
Install on BlackArch with `pacman -S untwister` (or add the BlackArch repository to an existing Arch Linux install). See the official BlackArch tool listing and upstream homepage linked above for details.
SecArsenal is an independent, educational reference. It does not host, distribute, or provide exploit code — only descriptions of, and links to, publicly available third-party tools and operating systems.
By continuing, you acknowledge that you will only use the tools and techniques referenced on this site against systems, networks, or accounts you own or are explicitly authorized to test; that unauthorized access to computer systems may be illegal in your jurisdiction; and that all information is provided "as is," and that SecArsenal and its contributors assume no liability for how it is used.
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Larger text
Increases text size across the site by ~20%.
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A thicker, higher-contrast outline for keyboard navigation.
Reduce motion
Turns off hover/focus transitions, regardless of OS settings.
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