Thales HSM Commands

[Mahmoud Yahya]

Hello all, I have an inquiry about any command that has a request containing Byte Key like EO command, I use Key block LMK ,it takes public key (n B) in the request ,in other command I was using a string message request and it worked well , but it's not working with any command that requires a key that it's format is bytes like EO,EW,GK ,I get error codes like B2,A1 and A3.  do I need to use jpos to connect and talk to hsm or there is a more simple way and if I need to use jpos can someone  help by providing how can it be done?                   

---by the way ,We used socket with inputstream,outputstream and bytearrayoutput stream in A0,Ei and GW and it worked well , but it's not working if request has key that is in bytes format.

[Mapfunde Venon]

Hello

This Blog https://andyorrock.typepad.com/paymentsystems/2006/08/implementing_th.html. can help you to get started.

Regards

Venon Mapfunde(PMP,Msc Software Engineering,Bsc Computer Science & Mathematics)
Tel:+263 775 091 262
Email:taka...@gmail.com
Skype: venon.mapfunde

On Wed, 20 Nov 2024 at 15:03, Mahmoud Yahya <mahmoud...@gmail.com> wrote:

Hello all, I have an inquiry about any command that has a request containing Byte Key like EO command, I use Key block LMK ,it takes public key (n B) in the request ,in other command I was using a string message request and it worked well , but it's not working with any command that requires a key that it's format is bytes like EO,EW,GK ,I get error codes like B2,A1 and A3.  do I need to use jpos to connect and talk to hsm or there is a more simple way and if I need to use jpos can someone  help by providing how can it be done?                   

---by the way ,We used socket with inputstream,outputstream and bytearrayoutput stream in A0,Ei and GW and it worked well , but it's not working if request has key that is in bytes format.

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[chhil]

I speculate but when you convert to bytes are you using a default or the 8589 character set?

Your string may not be getting encoded correctly into bytes where it does not know how to map it to a byte value.

-chhil

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[Mahmoud Yahya]

Thanks a lot my friends, Chhil I am using the default to change to bytes ,I can change that but the problem that when I convert my request to byte array ,I send it but don't receive any response from the hsm ,I only get response when I send a string so how can I send a byte array to the hsm and receive a response? Thanks in advance

[chhil]

In one of their manuals they show an example using python to convert hex data to binary binary_data = binascii.a2b_hex
Your input public key needs to be a hexstring  and you use ISOUtil.hex2byte to convert it. to a byte array pass the binary data to the command. Give it a try.
You can look at the Thales manuals which provides host command samples.

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[Chandrasekhar Rout]

You are trying to import your public key in Thales HSM .
Could you share your byte data that you are sending to HSM .

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[Mahmoud Yahya]

Thanks a lot everyone , I didn't have the  2-byte message length header in network byte order (big-endian) ,I included it in my bytearray that I am sending to hsm and now it's working , EO command worked and I am doing other commands now , I will send if anything blocked me ,Thanks again everyone.