Help: Algorithm for Load File Data Block Hash?

Hi guys
I would like to understand the algorithm of a field in INSTALL for LOAD command. It is "Load File Data Block Hash". I'm concerning about it in JCOP tool + Eclipse
(All I want to to is designing the new INSTALL for LOAD command, and I want to imitate JCOP tool)
Can I use DES algorithm for this field?
Thanks in advance.

The load file data block hash is described in GP Card Spec v2.1.1 sections 6.7.6.1, 7.7.7 and C.2 all titled Load File Data Block Hash.
The hash is a SHA-1 hash of the load file data block.
Cheers,
Shane

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binay codes are [50 4B 03 04 14 00 08 00 08 00 CF 56 86 3D 00 00 00 00 00 00 00 00 ....]
80 E8 00 00 FA C4 *82 0A 29* 50 4B 03 04 14 00 08 00 08 00... (binary code)...
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845467 wrote:load file data block means binary code of cap file , right?AFAIK no, not whole cap file. You have to find in cap file components such as "header.cap", "directory.cap" and others and download only them. These components are described in JCVM specification. You must download them in order defined in specification.
845467 wrote:80 E8 00 00 FA C4 82 0A 29 50 4B 03 04 14 00 08 00 08 00... (binary code)...APDU must look something like that
80 E8 00 00 FA C4 82 XX XX 01 YY YY DATA 02 ZZ ZZ DATA ....
XX XX - lenght of C4 tag
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02 ZZ ZZ - name and length of directory.cap component
Note, debug.cap and descriptor.cap are optional. In case of JCOP cards they are downloaded out of C4 tag.

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Download the data into a CSV file.
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No answer

Lock NOT set for: Loading master data attributes error

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mark
Message was edited by:
Mark Siongco
Message was edited by:
Mark Siongco

Hello Catherine
I have had this problem in the past (3.0B) --> the reason is that our system was too slow and could not crunch the data fast enough, therefore packets where loacking each other.
The fix: load the data into the PSA only, and then send it in background from the PSA to the info object. By doing this, only a background process will run, therefore locks cannot happen.
Fix#2: by a faster server (by faster, I mean more CPU power)
Now, maybe you have another issue with NW2004s, this was only my 2 cents quick thought
Good luck!
Ioan

Help: Algorithm for Load File Data Block Hash?

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