Re: Smart cards

2018-12-13 Thread Andreas Schwier
On 13.12.2018 08:13, Werner Koch wrote: > If you care about side channel attacks, NFC communication is a bad idea > because the decrypted session key can easily be picked up. To avoid > this, /secure communication/ needs to be used but that is cumbersome > because this requires a shared secret

Smart cards

2018-12-13 Thread Andreas Schwier
ct Systems GmbH |.##> <##.| Schülerweg 38 |# #| D-32429 Minden, Germany |# #| Phone +49 571 56149 |'##> <##'| http://www.cardcontact.de -----Registergericht Bad Oeynhausen HRB 14880 Geschäftsführer Andreas Schwier __

Re: PCI DSS compliance

2016-11-11 Thread Andreas Schwier
-CardContact Systems GmbH |.##> <##.| Schülerweg 38 |# #| D-32429 Minden, Germany |# #| Phone +49 571 56149 |'##> <##'| http://www.cardcontact.de -Registergericht Bad Oeynhausen HRB 14880 Geschäftsführer Andrea

Re: Nitrokey HSM and GPG

2016-02-24 Thread Andreas Schwier
ard error > > Kind Regards > --martin konold > -- -CardContact Systems GmbH |.##> <##.| Schülerweg 38 |# #| D-32429 Minden, Germany |# #| Phone +49 571 56149 |'##> <##'| http://www.cardcontact.de -Registergericht Bad

Re: Yubikey NEO OpenPGP advisory

2015-04-22 Thread Andreas Schwier
Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http://www.openscdp.org http

Re: Enigmail speed geeking

2015-03-12 Thread Andreas Schwier
. -- -CardContact Software System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http

Re: German ct magazine postulates death of pgp encryption

2015-02-27 Thread Andreas Schwier
Software System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http://www.openscdp.org http

Re: Talking about Cryptodevices... which one?

2015-02-06 Thread Andreas Schwier
___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users -- -CardContact Software System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany

Re: Talking about Cryptodevices... which one?

2015-01-27 Thread Andreas Schwier
. With a retry counter of 3, I'd recommend a 6 digit PIN. Andreas -- -CardContact Software System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de

Re: Talking about Cryptodevices... which one?

2015-01-27 Thread Andreas Schwier
___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users -- -CardContact Software System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany

Re: Talking about Cryptodevices... which one?

2015-01-27 Thread Andreas Schwier
Software System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http://www.openscdp.org

Re: Talking about Cryptodevices... which one?

2015-01-24 Thread Andreas Schwier
|.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http://www.openscdp.org http://www.smartcard

Re: Talking about Cryptodevices... which one?

2015-01-24 Thread Andreas Schwier
System Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http://www.openscdp.org http

Re: OpenPGP card feature request: as many encryption-capable keys as technically possible

2014-08-15 Thread Andreas Schwier
The SmartCard-HSM allows you to store as many RSA/ECC keys as memory can hold. And we are splitting management of keys from application data, so that you can store keys for any application on the same device. So far this works for gpgsm / PKCS#11 / Minidriver / Java / Android, however you can't

Re: OpenPGP card feature request: as many encryption-capable keys as technically possible

2014-08-15 Thread Andreas Schwier
On 08/15/2014 12:31 PM, Peter Lebbing wrote: On 15/08/14 09:57, NdK wrote: Currently you have to generate your encryption key on the PC and copy it to the card. So you have a copy to reuse. I don't think you *have* to, but it is certainly something I'd recommend. If the only existing copy

scdaemon support for SmartCard-HSM

2014-07-18 Thread Andreas Schwier
Hi list, we've added support for the SmartCard-HSM to scdaemon. Please find the patch that applies to master at [1]. The driver allows read/only operations with keys and certificates on a SmartCard-HSM. To generate keys and certificates please use OpenSC, XCA or the tools in OpenSCDP. There are

APDU buffer in pcsc-wrapper too short

2014-07-18 Thread Andreas Schwier
937a7660c83cba6f126415a17dceb9dd054887ef Mon Sep 17 00:00:00 2001 From: Andreas Schwier andreas.schw...@cardcontact.de Date: Fri, 18 Jul 2014 18:22:26 +0200 Subject: [PATCH 2/2] pcsc: Enlarged APDU buffer to 4096, as most certificates exceed 1024 byte --- scd/pcsc-wrapper.c |2 +- 1 file changed, 1

Status of ECDSA in GPGSM/SCDAEMON

2014-07-17 Thread Andreas Schwier
Sorry, pressed the send button too early. Hi list, we are working on an integration of the SmartCard-HSM in scdaemon. We have the code working for RSA, but have trouble getting it to work with 320 bit and SHA-256. Signature generation works fine, but during verification gpgsm claims a 256 bit

Re: Any future for the Crypto Stick?

2013-12-02 Thread Andreas Schwier (ML)
Consulting |.## ##.| Andreas Schwier |# #| Schülerweg 38 |# #| 32429 Minden, Germany |'## ##'| Phone +49 571 56149 -http://www.cardcontact.de http://www.tscons.de http://www.openscdp.org