How to replace many numbers with one number in a file.
Many numbers like 444565,454678,443298,etc. i want to replace these with one number (300).Please halp me out. (2 Replies)
Hi all,
I need to change the source port number of an outgoing TCP packet. First I have to bind the socket to a particular port(suppose 9001) but when I send the TCP packet I want to change the source port number lets say to 9002 still letting the socket to be bound to the same old port (9001).... (0 Replies)
Hi,
My requirement is I have an input file with a continuous series from 10000 to 99999. I have some numbers missing from those series. I want a output file which produces those missing numbers.
Eg: 10002, 99999 are missing from the series then the output file should contain those... (4 Replies)
Hello All,
I am having problem to find what is the smallest number from 90% of highest numbers from all numbers in file. I am having file with thousands of lines and hundreds of columns.
I am familiar mainly with bash but I am open to whatever suggestion witch will lead to the solutions.
If I... (11 Replies)
out of a range of numbers, how can i pick out the number that is the closest to any arbitrary/random number that a user supplies?
say the range of numbers are between 1 - 90000. but that doesn't mean each number exist between 1 - 90000. the range of numbers could be for example:
1, 3, 4, 6,... (6 Replies)
Hi All,
I am stuck with this problem.
I have some 100000 (.dat) 1.dat, 2.dat,3.dat etc until 100000.dat files which look like this:
1.dat
1
2
3
4
0.99
4.54
All my files 1.dat until 100000.dat look the same but with different numbers.
I have to first add all the numbers in each... (1 Reply)
Hi,
I want to remove the following code from Source files (or replace the code with empty.) from all the source files in given directory.
finally {
if (null != hibernateSession && hibernateSession.isOpen()) {
//hibernateSession.close();
}
}
It would be great if the script has... (2 Replies)
Hi, I have a list.txt file with number ranges and want to print/save new all.txt file with all the numbers and between the numbers.
== list.txt ==
65936
65938
65942 && 65943
65945 ... (7 Replies)
Hi Guys,
how to count number of files successfully copied while coping files from source to destination path
ex:10 files from source to target location copying
if 8 files copied successfully then
echo successfully copied=8
failure=2 files
if two files get error to coping files from... (23 Replies)
Discussion started by: sravanreddy
23 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)