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Recovery signing, rollback protection, and less brittle PCRs

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@osresearch osresearch released this 23 Aug 16:34
· 190 commits to master since this release
09da63b

image

Lots of improved features:

  • Added signed PCRs (#58)
  • Predict PCR4 and PCR2 based on sbsign --hash-only
  • Added TPM counters for rollback protection (#62)
  • TPM unsealing PINs (#5 )
  • safeboot.conf is now included in the initrd, fewer params on command line (#13 )
  • Recovery boot can now sign and hash root filesystem (#65)
  • Helpers for recovery boot to unlock cryptdisk, mount filesystems, etc (#56)
  • No more perl in /sbin/safeboot (#56)