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PostPosted: Sun May 05, 2013 4:20 am 
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Joined: Sun May 05, 2013 4:13 am
Posts: 3
I appear to be unable to either reset the user PIN or regenerate the GPG key without entering it.

I'd love to be able to reset this NEO to "factory". I do know (and did enter) the correct *admin* PIN.

Code:
$ gpg --version
gpg (GnuPG) 2.0.19
libgcrypt 1.5.0
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH, CAMELLIA128,
        CAMELLIA192, CAMELLIA256
Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
$ gpg --card-edit

scdaemon[20583]: updating slot 0 status: 0x0000->0x0007 (0->1)
Application ID ...: D2760001240102000000000000010000
Version ..........: 2.0
Manufacturer .....: test card
Serial number ....: 00000001
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: forced
Key attributes ...: 2048R 2048R 2048R
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 2 3
Signature counter : 5
Signature key ....: 4FE2 94B5 4F09 D6F9 DA2F  42B5 6CA8 5536 A7C3 08D6
      created ....: 2013-02-10 19:46:03
Encryption key....: CA53 7394 CB9C 08F9 AA09  23AD 0985 71BC BC97 27BA
      created ....: 2013-02-10 19:46:03
Authentication key: 94B5 51E6 D68B 8D83 BAC7  A735 A63C B5C9 B28A ABBB
      created ....: 2013-02-10 19:46:03
General key info..:
pub  2048R/A7C308D6 2013-02-10 ********* (Hardware Token) <***@**.***>
sec>  2048R/A7C308D6  created: 2013-02-10  expires: never     
                      card-no: 0000 00000001
ssb>  2048R/B28AABBB  created: 2013-02-10  expires: never     
                      card-no: 0000 00000001
ssb>  2048R/BC9727BA  created: 2013-02-10  expires: never     
                      card-no: 0000 00000001

gpg/card> admin
Admin commands are allowed

gpg/card> passwd
gpg: OpenPGP card no. D2760001240102000000000000010000 detected

1 - change PIN
2 - unblock PIN
3 - change Admin PIN
4 - set the Reset Code
Q - quit

Your selection? 2
scdaemon[20583]: 3 Admin PIN attempts remaining before card is permanently locked
scdaemon[20583]: DBG: asking for PIN '|A|Please enter the Admin PIN'
scdaemon[20583]: DBG: asking for PIN '|N|New PIN'
PIN unblocked and new PIN set.

1 - change PIN
2 - unblock PIN
3 - change Admin PIN
4 - set the Reset Code
Q - quit

Your selection? Q

gpg/card> verify
scdaemon[20583]: DBG: asking for PIN '||Please enter the PIN'
scdaemon[20583]: verify CHV2 failed: Card error
scdaemon[20583]: app_check_pin failed: Card error

Application ID ...: D2760001240102000000000000010000
Version ..........: 2.0
Manufacturer .....: test card
Serial number ....: 00000001
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: forced
Key attributes ...: 2048R 2048R 2048R
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 2 3
Signature counter : 5
Signature key ....: 4FE2 94B5 4F09 D6F9 DA2F  42B5 6CA8 5536 A7C3 08D6
      created ....: 2013-02-10 19:46:03
Encryption key....: CA53 7394 CB9C 08F9 AA09  23AD 0985 71BC BC97 27BA
      created ....: 2013-02-10 19:46:03
Authentication key: 94B5 51E6 D68B 8D83 BAC7  A735 A63C B5C9 B28A ABBB
      created ....: 2013-02-10 19:46:03
General key info..:
pub  2048R/A7C308D6 2013-02-10 ********* (Hardware Token) <***@**.***>
sec>  2048R/A7C308D6  created: 2013-02-10  expires: never     
                      card-no: 0000 00000001
ssb>  2048R/B28AABBB  created: 2013-02-10  expires: never     
                      card-no: 0000 00000001
ssb>  2048R/BC9727BA  created: 2013-02-10  expires: never     
                      card-no: 0000 00000001


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PostPosted: Fri Jun 14, 2013 11:26 pm 
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Joined: Sun May 05, 2013 4:13 am
Posts: 3
After reading another thread on these forums (at viewtopic.php?f=26&t=1074 ), I was able to reset the PIN.

First, I had to compile a whole stack of software to get gpshell working and connect the Yubikey as an OpenSC reader. This required an *old* version of the OpenSC plugin, before they transitioned from autotools to CMake.

After I had gpshell up, I sent a new version of the GPG applet to the card. The updated GPG applet wiped the PIN and keys, allowing me to recreate them.

After installing the updated applet, I am able to change the PIN with gpg --card-edit without problems.

Long story short, if you have problems changing the user PIN in GPG, it is likely due to an older (but shipped!) version of the GPG applet.


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PostPosted: Sun Jun 16, 2013 1:29 pm 
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Joined: Fri Mar 01, 2013 4:22 am
Posts: 1
I'm having similar problems. What version of the opensc plugin did you have to roll back to get gpshell working?


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PostPosted: Mon Jun 17, 2013 12:32 am 
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Joined: Sun May 05, 2013 4:13 am
Posts: 3
spmadden wrote:
I'm having similar problems. What version of the opensc plugin did you have to roll back to get gpshell working?


Sorry, it was the PC/SC connection plugin. My mistake. OpenSC is not involved here.

I used revision 351 from SVN ( http://sourceforge.net/p/globalplatform/code/351/ ). I believe this is the only version that will work with the applet posted in the other Yubico linked thread, as it is looking for version 1.0.0 of the library.

I use Linux. Building opensc itself was not an issue, but everything involved feels pretty crusty. I ended up using libglobalplatform.so.6+7.0.0 and gpshell 6.0.0, with the above-mentioned gppcscconnectionplugin 1.0.0.

EDIT: As an addendum, I had to upgrade my PC/SC (to 1.8.8) to get the Yubikey recognized. Just because it's usable as a USB keyboard (or even as a GPG smartcard!) doesn't mean gpshell can connect to it. You have to be able to see the card when you run pcsc_scan for the gpshell upload to work. I tried using an old OmniKey CardMan reader I've got floating around (which I know has contactless smartcard capabilities), but it didn't seem to see the Neo.


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PostPosted: Wed Jul 10, 2013 4:41 pm 
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Joined: Tue May 28, 2013 1:14 pm
Posts: 26
Borealid wrote:
I tried using an old OmniKey CardMan reader I've got floating around (which I know has contactless smartcard capabilities), but it didn't seem to see the Neo.


A note on Cardman reader, since it also took me a while to get it running - for NFC it requires binary driver blob to be downloaded from https://www.hidglobal.com/drivers. The driver library .so needs then to be placed in /usr/lib64/pcsc/drivers (or /usr/lib/ for x86), the driver zip contains readme file.

With that driver blob Neo is recognized fine, also any operation that works via USB CCID also works over NFC.


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PostPosted: Tue Aug 06, 2013 8:12 pm 
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Joined: Mon Aug 13, 2012 9:58 pm
Posts: 23
nm, after I restarted the daemon it works fine. seems i have to kill the dameon if i wanna eject my yubikey. or else it wont ask for a pin when i insert the key


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