Re: jcop 4 driver --test

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On Thu, Apr 16, 2026 at 10:30=E2=80=AFAM Frank Morgner <frankmorgner@gmail.=
com>
wrote:

> We deliberately removed the bluez card driver (jcop is a misnomer),
> because nobody was using or maintining either smart card software or
> java card applet as far as we know. I don't know why you want to bring
> this back. I assume you would be better off using your JCOP4 with a
> (open source) java card applet that is supported by OpenSC.
>

It's an already initialized card by my employer, because the porting of the
old
driver was easily done I asked myself if the --test option is known to work
flawlessly.

I assume this is not the case, for example:

The binary only pkcs11 driver for the card segfaults with --test and
reports verify errors too,
but overall works, so obviously, for the functioning not all tests need to
pass.

Currently I'm stuck with the MD5-RSA-PKCS test. Here I need padding :

https://www.ibm.com/docs/en/linux-on-systems?topic=3Dcryptography-pkcs-1-ha=
sh-formats

(case MD5) how can I tell opensc that it should be done by opensc?
I assume it's some flags (eg: SC_ALGORITHM_RSA_HASH_MD5) but currently I
have no luck.

best regards,

Martin

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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote g=
mail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Apr 16,=
 2026 at 10:30=E2=80=AFAM Frank Morgner &lt;<a href=3D"mailto:frankmorgner@=
gmail.com">[email protected]</a>&gt; wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex">We deliberately removed the bluez card dri=
ver (jcop is a misnomer), <br>
because nobody was using or maintining either smart card software or <br>
java card applet as far as we know. I don&#39;t know why you want to bring =
<br>
this back. I assume you would be better off using your JCOP4 with a <br>
(open source) java card applet that is supported by OpenSC.<br></blockquote=
><div><br></div><div>It&#39;s an already initialized card by my employer, b=
ecause the porting of the old</div><div>driver was easily done I asked myse=
lf if the --test option is known to work flawlessly.</div><div><br></div><d=
iv>I assume this is not the case, for example:</div><div><br></div><div>The=
 binary=C2=A0only pkcs11 driver for the card segfaults with --test and repo=
rts verify errors too,</div><div>but overall works, so obviously, for the f=
unctioning not all tests need to pass.=C2=A0</div><div><br></div><div>Curre=
ntly I&#39;m stuck with the MD5-RSA-PKCS test. Here I need padding :</div><=
div><br></div><div><a href=3D"https://www.ibm.com/docs/en/linux-on-systems?=
topic=3Dcryptography-pkcs-1-hash-formats">https://www.ibm.com/docs/en/linux=
-on-systems?topic=3Dcryptography-pkcs-1-hash-formats</a></div><div><br></di=
v><div>(case MD5) how can I tell opensc that it should be done by opensc?</=
div><div>I assume it&#39;s some flags (eg:=C2=A0SC_ALGORITHM_RSA_HASH_MD5) =
but currently I have no luck.</div><div><br></div><div>best regards,</div><=
div><br></div><div>Martin</div></div></div>

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