I have launched telnet on nt and have connected to a unix server,
I'm trying to run a program on the unix server which will launch a gui, but when I try to launch it
I get the message
"display not set\n"
"By default set it to 0.0"
I can sit down at the unix machine and launch the program with... (3 Replies)
Hello,
in the application i'm writing i need to launch "recordmydesktop" to capture the screen,but i'm having a problem: when the recording stops,and the encoding of the saved file starts,the entire system hangs until the completion of the encoding.This happens if i launch recordmydesktop from my... (7 Replies)
Hi there, im new too shell scripting and was wondering if it is possible to create a shell script to take in a variable and load a c program.
My C program is a file monitor, and is started by using the terminal and using to following code
./monitor FileToBeMonitored
is it possible to have... (12 Replies)
Hi i wanted to know if any one can give me an example on how to launch a windows program in a perl script. I wanted to open the nmap software on my computer with a perl script, i heard this can be done with the system function. Would the function be in this format:
$text =... (1 Reply)
So I am attempting to get a short but complex perl script to be able to time out an application that I will launch from a command line. The terminal I use is MKS C SHELL and I am having trouble doing the a job spawn that will launch the application and keep time on it.
I know you could do this... (1 Reply)
Hey guys, first post! I want to write a script that will wait 1 second and then input the keys CTRL+ALT+J to the application i just opened.
The program is dosbox, and thay key combination starts video recording :) I have no idea how to program this, can anyone help please?
thanks in advance! (2 Replies)
Hi ULFers,
I am trying to setup a (very) simple startup script on a centos 6.4 computer and it kind of failed.... Here are the details :
As said just above the computer setup is running a CentOS 6.4 x64, on this computer a vncserver is automatically started (by a chkconfig vncserver on), i... (1 Reply)
Hello all.
I am a linux and linux scripting newbie so please forgive my ignorance. I have been tasked to write what I thought should be a pretty simple script that does the following:
1) Loads our forticlient ssl vpn command line client
2) sends the vpn password to the client
Pretty... (2 Replies)
I want to create a simple html page that should contain 2 fields in which the user can write the input. Then I want to have a button that should launch a shell script with the parameters inserted by user in the fields from the webpage.
This is the code behind my webpage:
<html>
<form... (2 Replies)
Discussion started by: black_fender
2 Replies
LEARN ABOUT CENTOS
tpm_quote_tools
TPM QUOTE TOOLS(8) TPM QUOTE TOOLS(8)NAME
TPM Quote Tools
PROGRAMS
tpm_mkuuid, tpm_mkaik, tpm_loadkey, tpm_unloadkey, tpm_getpcrhash, tpm_updatepcrhash, tpm_getquote, tpm_verifyquote
DESCRIPTION
TPM Quote Tools is a collection of programs that provide support for TPM based attestation using the TPM quote operation.
A TPM contains a set of Platform Configuration Registers (PCRs). In a well configured machine, some of these registers are set to known
values during the boot up process or at other times. For example, a PCR might contain the hash of a boot loader in memory before it is
run.
The TPM quote operation is used to authoritatively verify the contents of a TPM's Platform Configuration Registers (PCRs). During provi-
sioning, a composite hash of a selected set of PCRs is computed. The TPM quote operation produces a composite hash that can be compared
with the one computed while provisioning.
To use the TPM quote operation, keys must be generated. During provisioning, an Attestation Identity Key (AIK) is generated for each TPM,
and the public part of the key is made available to entities that validate quotes.
The TPM quote operation returns signed data and a signature. The data that is signed contains the PCRs selected for the operation, the
composite hash for the selected PCRs, and a nonce provided as input, and used to prevent replay attacks. At provisioning time, the data
that is signed is stored, not just the composite hash. The signature is discarded.
An entity that wishes to evaluate a machine generates a nonce, and sends it along with the set of PCR used to generate the composite PCR
hash at provisioning time. For this use of the TPM quote operation, the signed data is ignored, and the signature returned is used to val-
idate the state of the TPM's PCRs. Given the signature, the evaluating entity replaces the nonce in the signed data generated at provi-
sioning time, and checks to see if the signature is valid for the data. If so, this check ensures the selected PCRs contain values that
match the ones measured during provisioning.
A typical scenario for an enterprise using these tools follows. The tools expect AIKs to be referenced via one enterprise-wide Universally
Unique Identifier (UUID). The program tpm_mkuuid creates one.
For each machine being checked, an AIK is created using tpm_mkaik. The key blob produced is bound to the UUID on its machine using
tpm_loadkey. The public key associated with the AIK is sent to the entities that verify quotes. Finally, the expected PCR composite hash
is obtained using tpm_getpcrhash. When the expected PCR values change, a new hash can be generated with tpm_updatepcrhash.
The program to obtain a quote, and thus measure the current state of the PCRs is tpm_getquote. The program that verifies the quote
describes the same PCR composite hash as was measured initially is tpm_verifyquote.
SEE ALSO tpm_mkuuid(8), tpm_mkaik(8), tpm_loadkey(8), tpm_unloadkey(8), tpm_getpcrhash(8), tpm_updatepcrhash(8), tpm_getquote(8), tpm_verifyquote(8)
Oct 2010 TPM QUOTE TOOLS(8)