v0.4 Encrypted Storage

Use software encrypted storage for platforms, where native hardware encryption is not available.

Required changes in the firmware:

• WebCrypt: a14a49b
• Nitrokey/nitrokey-3-firmware@059d277
• trussed-dev/trussed@main...Nitrokey:trussed:webcrypt-devel
  • specifically: trussed-dev/trussed@2589313
• additional usb-ip runner update:
  • Nitrokey/nitrokey-websmartcard-usbip@3747992

Attachments:

• test report: test-report-u2f.zip
• firmware binary: webcrypt-nk3xn-v1.0.4-11-g059d277.bin
• solution documentation: documentation-fs-enc-poc.md