Dear pamu,
How does your code react with the following input? :-
I regret that I get syntax errors for lines 2 & 3.
Robin
As per the OP
Quote:
Originally Posted by kcpoole
Reason being as the section of the file is only a selection from a much larger line that is processed as part of a much larger string. The rest of the code pulls out the numbers and then I need to stip the leading zeros before putting them in an array.
I only included the extracted part to avoid confusion with the rest of the code.
He has already have code to separate the numbers here so, He just want to remove leading zeros.
How to insert leading zeros into a left-justisfied zip code?
e.g. Zip code is written as 60320 which is left-justified to make it be read as 0060320.
We have to move it to right-justifiable then insert 2 leading zeros into it... ;) (1 Reply)
Hi All,
I am working with a fixed width file Forrmat.
C1 Number (10,3)
C2 Number (10,3)
e.g.
c1= 0000000100.000
c2= 0000000020.000
0000000100.0000000000020.000
I have to perform c1 - c2 . i.e. I want answer to be 0000000080.000. but I am loosing the leading zeros( only getting... (3 Replies)
Hi
I have a file in which I have 5 columns which are delimited by “|” as shown
ABC|12|YAK|METRIC|000000019.5
XYZ|10|ABX|META|000000002.5
Now my requirement is to take the last column trim the leading zero's for that column values and write back to the same file in the same... (7 Replies)
Hi all,
I have file with numeric values. I need to pad each value with leading zeros such that total lenght of each value is 16.
Example:
cat tmp.txt
502455
50255
5026
5027
5028
Output
0000000000502455
0000000000050255
0000000000005026
0000000000005027
0000000000005028
Any... (12 Replies)
Hi
i need help in adding leading zero to filenames
e.g file name in my folder are
1_234sd.txt
23_234sd.txt
the output i need is
001_234sd.txt
023_234sd.txt
can i do this shell scripting
please help (2 Replies)
Hello Gurus,
Quick question. I have a file with the following records:
A~000000000000518000~SLP ~99991231~20090701~88.50~USD~CS~
A~000000000000518000~SLP ~99991231~20090701~102.00~USD~CS~
A~000000000000772000~SLP ~99991231~20100701~118.08~USD~CS~
I wold like to do the following:
1. Add... (1 Reply)
Hi,
i have a variable which conatins values like 00001,0003,00067,00459.
I want to use the values one by one and in the same form as they are like 00001,0003,00067,00459.
Also can anyone tell me how to increment those numbers by 1,keeping the format as same like 00002,0004,00068,00460.... (5 Replies)
Hello,
I have a pipe separated file with two major lines. One is header and another is detail line. Header starts with H and Detail start with D.
Sample Content:
H|123456|Joes Watson|UK|4/5/2016|12/5/2016|3456|HC|NW||||||
D|123456|Joes... (13 Replies)
Hi All,
I am using a informatica job to create a csv file and a unix script the mail the generated file.Everything is working fine but I am not seeing leading zeros in the csv file sent in the mail.These zeros were present when the .csv file was generated by informatica procees.
Is there any... (11 Replies)
Discussion started by: karthik adiga
11 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)