TPM-Secured Yggdrasil Startup Implementation with 1000/1000 Successful Tests

[kiljoy001]

Hello Yggdrasil maintainers,

I've developed a bash script that significantly enhances Yggdrasil security by implementing TPM-based private key protection. This implementation:

• Stores Yggdrasil private keys securely in hardware TPM via tpm2_tools
• Uses RAM-only configuration (/dev/shm) to prevent disk exposure
• Implements secure cleanup procedures for sensitive data
• Uses randomized TPM handles for unpredictability
• Provides hardware-bound node identity

I've extensively tested this implementation with 1000/1000 successful iterations on real hardware TPM modules (Raspberry pi 5 with a TPM9670 GPIO module). The script is particularly valuable for high-security environments, critical infrastructure, and enterprise deployments.

I'm interested in contributing this to the Yggdrasil project, possibly as:

1. An official security enhancement module
2. A recommended security practice for high-security deployments
3. Documentation for enterprise users

Would you be interested in reviewing this implementation? I'd be happy to discuss how it could best fit into the Yggdrasil ecosystem.

Thank you,
kiljoy001

[kiljoy001]

repo: https://github.com/kiljoy001/tpm-backed-yggstartup