I have extracted a raw data file from a magnetic tape using the dd command
Afterwards, I managed to read the extracted data with Bless HexEditor and I found out that at offset 0x200000 there is a sequence of value which originally was stored in a table.
I would like to extract this data and import it in an Excel or CSV file, but above all I would like to understand the data encryption.
This is an example of the data extracted in hexadecimal format and its representation in unsigned int little endian:
Can you understand starting from this piece of converted data how the raw file is encoded and how I can create a bash script to decode it??
Thanks
Moderator's Comments:
Please use code tags next time for your code and data. Thanks
Last edited by NICEPeppino; 07-30-2014 at 08:03 AM..
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Discussion started by: mrreds
2 Replies
LEARN ABOUT HPUX
_decodedecimal64
_decodedecimal64(3M)_decodedecimal64(3M)NAME
_decodedecimal64(), _decodedecimal128(), _decodedecimal32() - decode decimal-encoded decimal data
SYNOPSIS DESCRIPTION
There are two standard bit-encodings for decimal floating-point data: binary and decimal. Both encoding provide exactly the same data
(analogous to big endian and little endian encodings). The HP-UX decimal floating-point types use the binary encoding.
The function decodes x, interpreted as a decimal-encoded 64-bit decimal datum, into the encoding for
is a version of it takes a argument and returns a result.
is a version of it takes a argument and returns a result.
These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward.
USAGE
To use any of these functions, compile with the option.
Make sure your program defines and then includes
Link in the math library by specifying or on the linking command line.
For more information, see the at the following site:
RETURN VALUE
returns x in the encoding for
raises no exceptions.
ERRORS
No errors are defined.
SEE ALSO _decodebinary64(3M), _encodebinary64(3M), _encodedecimal64(3M), math(5).
STANDARDS CONFORMANCE
These functions are not specified in any standard.
HP Integrity Server Only _decodedecimal64(3M)