Here is what I did . . . . I FTP'd several *.pdf files from a web site to a UNIX server, and did not set the transfer mode to BIN, now Adobe thinks that the documents are corrupted. Is there a way to convert the *.pdf files to Binary so that Adobe can open them again. I would just re-download... (2 Replies)
Dear Experts
I need to read a binary file. I know for example in byte number 3801-3804 there is a 4 byte number embeded. Is there a way to extract this number from this file and then convert it to ascii via unix??
Your help would be highly appreciated.
Very Best Regards
Reza (5 Replies)
Hi All,
Is there any command which can convert binary decimal coded values to ascii values...
i have bcd values like below
0-- -v -
Pls suggest a way to convert this.
Thanks,
Deepti.Gaur (3 Replies)
Hi,
I have two strings aaa, bbb which contains text in UTF-8 format.
I am using Solaris OS. zsh shell, emacs editor. In the shell the text are represented like "fff'''(((#ip##iii^q##1.....
Example: aaa="fff'''(((#ip##iii^q##1"..
I need to compare the two strings, I feel that text in this... (3 Replies)
I have a file in below format(ISO ) and to be convert to readable (.txt/Ascii) format .send me the commands/code please
sample as follows
2043010101167157001190002010011120000000002144300000000000000000000 01022_ - %rE@
U...ug 47 56 d %rE@ 01022_ - $5
fy ... (1 Reply)
Hello,
I am trying to convert a 7bit ASCII file to UTF-8.
I have used iconv before though it can't recognize it for some reason and says unknown file encoding.
When I used ascii2uni package with different package, ./ascii2uni -a K -a I -a J -a X test_file > new_test_file
It still... (2 Replies)
I have variable that contains multiple values of number and also include overpunch(i.e. # $ % etc) character so we want to replace it with numbers.
here are the example:
Code:
11500#.0#
28575$.5$
527#.7#
42".2"
2794 .4
2279!.9!
1067&.7&
926#.6#
2279!.9!
885".5"
11714$.4$
27361'.1'... (1 Reply)
I am trying to develop a script which will work on a source UTF-8 file and perform one or more of the following
It will accept the target encoding as an argument e.g. US-ASCII or ISO-8859-1, etc
1. It should replace all occurrences of characters outside target character set by " " (space) or... (3 Replies)
Hi All,
I have an ascii file in which few columns are having hex values which i need to convert into ascii. Kindly suggest me what command can be used in unix shell scripting?
Thanks in Advance (2 Replies)
Discussion started by: HemaV
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)