IP Library Granted Patent US 8,473,747
Granted Patent B2
US 8,473,747 · App. 13/049,050 · Granted Jun 25, 2013

Secure boot with minimum number of re-boots

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Quick Facts
Patent No.
US 8,473,747
App. No.
13/049,050
Granted
Jun 25, 2013
Kind
B2
Abstract

Systems, methods and products are described that provide secure boot with a minimum number of re-boots. One aspect provides a method including receiving an indication to boot from a power off state at a computing device; responsive to authenticating a user at one or more input devices, releasing a value derived from authenticating the user at the one or more input devices; responsive to releasing the value, unlocking one or more encrypted drives with a previously established alternate credential; and thereafter proceeding to boot from the power off state. By not having to call the non-BIOS software each boot, this minimizes the number of reboots for each boot cycle.

Claims (42)

1. A method comprising:

in an initial boot process at a computing device, setting up an alternate credential in a pre-boot environment, wherein the pre-boot environment includes master boot record shadowing;

after the initial boot process, receiving an indication to boot from a power off state at the computing device;

responsive to authenticating a user at one or more input devices, releasing a value derived from authenticating the user at the one or more input devices;

responsive to releasing the value, unlocking one or more encrypted drives with the previously established alternate credential; and

thereafter proceeding to boot from the power off state.

2. The method according to claim 1 , wherein the one or more input devices comprise a biometric device.

3. The method according to claim 1 , wherein the one or more input devices comprise a fingerprint reader.

4. The method according to claim 1 , wherein one or more input devices comprise a smart card reader.

5. The method according to claim 1 , wherein the power off state is one of S4 and S5.

6. The method according to claim 1 , wherein the one or more encrypted drives comprise one or more self-encrypting drives encrypted with the previously established alternate credential.

7. The method according to claim 1 , wherein the value derived from authenticating the user at the one or more input devices is a hash.

8. The method according to claim 7 , further comprising:

comparing a hash of the alternate credential with the hash of the value derived from authenticating the user at the one or more input devices;

wherein said unlocking occurs responsive to a match between said hashes.

9. The method according to claim 8 , wherein the alternate credential is stored in a secure form and subsequently converted into a useable form.

10. A system comprising:

one or more processors;

one or more encrypted drives; and

one or more input devices;

wherein, responsive to execution of computer program instructions accessible to the one or more processors, the one or more processors are configured to:

in an initial boot process, set UP an alternate credential in a pre-boot environment, wherein the pre-boot environment includes master boot record shadowing;

after the initial boot process, receive an indication to boot from a power off state of the system;

responsive to authenticating a user at one or more input devices, release a value derived from authenticating the user at the one or more input devices;

responsive to releasing the value, unlock one or more encrypted drives with the previously established alternate credential; and

thereafter proceed to boot from the power off state.

11. The system according to claim 10 , wherein the one or more input devices comprise a biometric device.

12. The system according to claim 10 , wherein the one or more input devices comprise a fingerprint reader.

13. The system according to claim 10 , wherein the one or more input devices comprise a smart card reader.

14. The system according to claim 10 , wherein the power off state is one of S4 and S5.

15. The system according to claim 10 , wherein the value derived from authenticating the user at the one or more input devices is a hash.

16. The system according to claim 15 , wherein, responsive to execution of computer program instructions accessible to the one or more processors, the one or more processors are further configured to:

compare a hash of the alternate credential with the hash of the value derived from authenticating the user at the one or more input devices;

wherein said unlocking occurs responsive to a match between said hashes.

17. The system according to claim 16 , wherein the alternate credential is stored in a secure form and subsequently converted into a useable form.

18. A computer program product comprising:

a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising:

computer readable program code configured to, in an initial boot process at a computing device, set up an alternate credential in a pre-boot environment, wherein the pre-boot environment includes master boot record shadowing;

computer readable program code configured to, after the initial boot process, receive an indication to boot from a power off state at a computing device;

computer readable program code configured to, responsive to authenticating a user at one or more input devices, release a value derived from authenticating the user at the one or more input devices;

computer readable program code configured to, responsive to releasing the value, unlock one or more encrypted drives with the previously established alternate credential; and

computer readable program code configured to thereafter proceed to boot from the power off state.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2025
From: LENOVO PC INTERNATIONAL LIMITED
To: LENOVO SWITZERLAND INTERNATIONAL GMBH
Reel/Frame 069870/0670 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 3, 2019
From: LENOVO (SINGAPORE) PTE. LTD.
To: LENOVO PC INTERNATIONAL
Reel/Frame 049667/0259 →
NUNC PRO TUNC ASSIGNMENT Recorded Dec 4, 2015
From: LENOVO (SINGAPORE) PTE LTD.
To: LENOVO PC INTERNATIONAL
Reel/Frame 037208/0028 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 16, 2011
From: SPRINGFIELD, RANDALL S.; PENNISI, JOSEPH M.; LOCKER, HOWARD; SEETHALER, KENNETH S.
To: LENOVO (SINGAPORE) PTE. LTD.
Reel/Frame 025967/0630 →