search for: pcrs

...for UML. # umlknx.sh -no-kvm === How to use Trusted Boot ========================================================= Trusted GRUB and IMA(Integrity Measured Architecture) on TPM1.2 (Trusted Platform Module). The devices, blocks and files, which are used at boot time, are measured and registered at PCRs(Platform Configuration Register) of the secure chip TPM (Trusted Platform Module). Boot with the second option "KNOPPIX(2.6.19.1+ima)" on GRUB. At GRUB, we can check the TPM. Enter command line with "c". We can check the status, the values of PCRs and the event log with foll...

...check to release the bitlocker key on boot. Depending on whether your on a BIOS or EFI machine, there are slight differences, but definitely controllable by group policy. http://technet.microsoft.com/en-us/library/ee706521(v=ws.10).aspx#BKMK_depopt3 I have not tried to disable whichever one of the PCRs prevents boot deviations, but it may very well be possible. You can find more documentation on the PCRs in the TPM spec: http://technet.microsoft.com/en-us/library/ee706521(v=ws.10).aspx#BKMK_depopt3 Bear in mind though that this would make it trivial to load malicious code before boot, defeating...

...----- Now My question is, is this supposed to stop at "INFO[VTPM]: [2]: Waiting for DMI messages." I dont have a machine with onboard TPM, so thats the reason Iam using a TPM emulator, but emulator seems to be working fine. I start my VM and login to it, and do a cat /sys/devices/vtpm/pcrs -------------------------------------------------------- cat: /sys/devices/vtpm/pcrs: No such file or directory -bash-3.00# cd /sys/devices/vtpm/ -bash-3.00# ls cancel caps pcrs pubek -bash-3.00# -------------------------------------------------------- VM cofiguration file -----------------------...

Any deviation from the expected boot process will prevent BitLocker from accessing the volume key in the TPM. One reason this behavior exists is to prevent malicious code from being loaded (such as via booting first to CD / USB / PXE, loading malware, and then continuing to boot to Windows). So what's happening here is the deviation from firmware -> PXE -> HDD is detected and the volume

Hi, I want to calculate PLS package in R. Now I want to calculate R, MSEP, RMSEP and R2 of PLSR and PCR using this. I also add this in library of R. How I can calculate R, MSEP, RMSEP and R2 of PLSR and PCR in R. I s any other method then please also suggest me. Simply I want to calculate these value. Thanking you. -- Nitish Kumar Mishra Junior Research Fellow BIC, IMTECH, Chandigarh, India

...terminal console serial Caveats / Notes: ---------------- o x86_64 is not supported yet (IA64 does not support LT at this time). o The code only measures the hypervisor (and its command line), which is not the complete TCB. o It doesn''t cap (extend with invalid value) the dynamic TPM PCRs when the LT environment is torn down. Instead it disables the BIOS reboot option so that any shutdown/reboot will have to reset the platform and the TPM. o TPM locality 2 is not protected. The defined behavior for access to unpermitted localities is for reads to return 0xff''s and writes...

...terminal console serial Caveats / Notes: ---------------- o x86_64 is not supported yet (IA64 does not support LT at this time). o The code only measures the hypervisor (and its command line), which is not the complete TCB. o It doesn''t cap (extend with invalid value) the dynamic TPM PCRs when the LT environment is torn down. Instead it disables the BIOS reboot option so that any shutdown/reboot will have to reset the platform and the TPM. o TPM locality 2 is not protected. The defined behavior for access to unpermitted localities is for reads to return 0xff''s and writes...

...art_info=0xcb2e0 Thread "main": pointer: 0x2000803760, stack: 0x140000 "main" Shutting down () Shutdown requested: 3 Thread "shutdown" exited. vtpm.c:425: Info: starting TPM Emulator (1.2.0.7-475) vtpm.c:357: Info: Startup mode is `clear'' vtpm.c:387: Info: All PCRs initialized to default values vtpm.c:391: Info: TPM Maintenance Commands disabled vtpm.c:401: Info: Log level set to (null) ============= Init TPM BACK ================ Thread "tpmback-listener": pointer: 0x2000802fb0, stack: 0x130000 ============= Init TPM Front ================ Tpmfront...

...art_info=0xcb2e0 Thread "main": pointer: 0x2000803760, stack: 0x140000 "main" Shutting down () Shutdown requested: 3 Thread "shutdown" exited. vtpm.c:425: Info: starting TPM Emulator (1.2.0.7-475) vtpm.c:357: Info: Startup mode is `clear'' vtpm.c:387: Info: All PCRs initialized to default values vtpm.c:391: Info: TPM Maintenance Commands disabled vtpm.c:401: Info: Log level set to (null) ============= Init TPM BACK ================ Thread "tpmback-listener": pointer: 0x2000802fb0, stack: 0x130000 ============= Init TPM Front ================ Tpmfront...

...the cleanup of a vTPM upon guest shutdown can be relocated to the layer that starts the vTPM. This is necessary even without these patches because vTPMs have never automatically shut down if a guest encoutners an error in early boot or simply does not load (or have) the frontend driver. Locality-5 PCRs have been dropped since v4: this patch is not really suited for upstreaming until there is a domain using the extra PCRs. Mini-os driver patches: [PATCH 01/12] mini-os/tpm{back,front}: Change shared page ABI [PATCH 02/12] mini-os/tpm{back,front}: Allow device repoens [PATCH 03/12] mini...

Hi, I‘m trying to install vTPM based on Xen-4.2.2, linux-kernel 3.9.1 (Dom0) and TPM emulator. However, I cannot find the TPM backed driver in this version of Dom0 linux kernel. There is no CONFIG_XEN_TPMDEV_BACKEND in the kernel config file. The config file for Dom0 is attached. Maybe it provides some useful information. So, how to install a Xen TPM backend driver in the Dom0 linux-kernel.

Since the vTPM implementations are being incorproated into Xen and possibly upstream Linux, I would like to see if this protocol change could be added before we have significant legacy implementations. If not, I still think it would be useful as either a v2 or negotiated protocol change. The current vTPM protocol is a copy of the network protocol. This was likely done for ease of implementation,