User trusted device for detecting a virtualized environment

A method for enabling a computer (101) to boot from a user trusted device (10), the user trusted device (10) comprising a connection interface (12) enabling connection (S2) with said computer (101), the method comprising:

• enabling (S3) said computer (101) to start booting from the user trusted device (10) upon connection (S2) of the user trusted device with said computer (101) via said connection interface (12);
• instructing a processor (105) of the computer (101) to
• execute (S7) virtualization sensitive code and
• issue (S8) completion data upon completion of execution, which completion data depends on the virtualization sensitive code and its execution by the processor (105);
• determining (S9-S13), based on said completion data, whether the execution was not performed in a virtualized environment;
• and
• enabling (S15) said computer (101) to complete booting from the user trusted device (10) upon determining that the execution was not performed in a virtualized environment.

A computer program product for enabling a computer (101) to boot from a user trusted device (10), the computer program product comprising a computer-readable storage medium having modules (15, 16, 17) embodied therewith, the modules allowing for performing a method, wherein the user trusted device (10) comprises a connection interface (12) enabling connection (S2) with said computer (101), the method comprising:

• enabling (S3) said computer (101) to start booting from the user trusted device (10) upon connection (S2) of the user trusted device with said computer (101) via said connection interface (12);
• instructing a processor (105) of the computer (101) to
• execute (S7) virtualization sensitive code and
• issue (S8) completion data upon completion of execution, which completion data depends on the virtualization sensitive code and its execution by the processor (105);
• determining (S9-S13), based on said completion data, whether the execution was not performed in a virtualized environment;
• and
• enabling (S15) said computer (101) to complete booting from the user trusted device (10) upon determining that the execution was not performed in a virtualized environment.