writing to the display of a pinpad reader

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writing to the display of a pinpad reader

Lars Silvén
Hello folks,

I have a ct710 reader from Gemalto.
The pcsc name for it is:
Gemalto Ezio Shield (S14C0138571943) 00 00

I want to write a string to the display using pcscd on linux with the
libccid driver.
Can anyone help me to find out how to do it?

First I tried to use SCardControl with FEATURE_WRITE_DISPLAY but found
out that this is not implemented by libccid.

My recent idea is to use SCardControl with FEATURE_CCID_ESC_COMMAND. But
I don't have any documentation of escape commands for the reader. Does
anyone know where I could find such documentation?
I have already tried gemalto.com but they neither have any documentation
nor support for their readers.

Alternatively I could get another pinpad reader.
Does anyone know how writing to the display of any reader is done with
the pcsc API ?

Any help would really be appreciated.

Cheers,
Lars


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Re: writing to the display of a pinpad reader

Martin Paljak-4

It is usually proprietary, you can try snooping windows apps with a vm and usbmon.


On Fri, 26 Aug 2016, 07:50 Lars Silvén, <[hidden email]> wrote:
Hello folks,

I have a ct710 reader from Gemalto.
The pcsc name for it is:
Gemalto Ezio Shield (S14C0138571943) 00 00

I want to write a string to the display using pcscd on linux with the
libccid driver.
Can anyone help me to find out how to do it?

First I tried to use SCardControl with FEATURE_WRITE_DISPLAY but found
out that this is not implemented by libccid.

My recent idea is to use SCardControl with FEATURE_CCID_ESC_COMMAND. But
I don't have any documentation of escape commands for the reader. Does
anyone know where I could find such documentation?
I have already tried gemalto.com but they neither have any documentation
nor support for their readers.

Alternatively I could get another pinpad reader.
Does anyone know how writing to the display of any reader is done with
the pcsc API ?

Any help would really be appreciated.

Cheers,
Lars


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[hidden email]
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