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Maniphest T2298

Unblocking a smartcard PIN not possible in 2.1
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Description

I am unable to unblock a blocked smartcard PIN with GPG 2.1.11. The card is
correctly recognized, but every PIN operation, especially "2 - unblock PIN"
results
in "Error unblocking the PIN: Conditions of use not satisfied". Unblocking the
card
with 2.0 works as expected.

The card is detected as expected, though (private data removed):

Reader ...........: REINER SCT cyberJack RFID standard (XXXXX) 00 00
Application ID ...: XXXXXX
Version ..........: 2.0
Manufacturer .....: Yubico
Serial number ....: XXXXXX
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 ...: rsa2048 rsa2048 rsa2048
Max. PIN lengths .: 127 127 127
PIN retry counter : 0 3 3
Signature counter : 3
Signature key ....: Some Stuff

created ....: Some Stuff

Encryption key....: Some Stuff

created ....: Some Stuff

Authentication key: Some Stuff

created ....: Some Stuff

General key info..: pub rsa2048/0xXXXXXXXXXXXXX somedate somename
<somemail@example.org>
sec> rsa2048/0xXXXXXXXXXXXXXXXX created: somedate expires: never

card-no: 0006 XXXXXX

ssb> rsa2048/0xXXXXXXXXXXXXXXXX created: somedate expires: never

card-no: 0006 XXXXXX

ssb> rsa2048/0xXXXXXXXXXXXXXXXX created: somedate expires: never

card-no: 0006 XXXXXX

Details

Version
2.1.11,2.1.12

Event Timeline

languitar set Version to 2.1.11.Mar 29 2016, 4:42 PM
languitar added a project: Bug Report.
languitar added a subscriber: languitar.
• werner added a subscriber: • werner.Apr 8 2016, 9:31 AM

Please describe exactly what you did.

You are using a Yubikey token which makes me wonder why there is another reader
given.

• werner added projects: scd, gnupg.Apr 8 2016, 9:31 AM
languitar added a comment.Apr 8 2016, 2:27 PM

This is a fidesmo privacy card with the yubikey applet installed. Therefore the second reader.

This was just a --card-edit and then any modification option like the one mentioned above.

On April 8, 2016 2:31:39 PM GMT+07:00, Werner Koch via BTS <gnupg@bugs.g10code.com> wrote:

Werner Koch <wk@gnupg.org> added the comment:

Please describe exactly what you did.

You are using a Yubikey token which makes me wonder why there is
another reader
given.

category: -> gnupg
status: unread -> chatting
topic: +scd

GnuPG's BTS <gnupg@bugs.g10code.com>
<T2298>

• gniibe added a subscriber: • gniibe.Apr 19 2016, 6:41 AM

Please describe the interaction. IIUC, isn't it pinentry problem?
Did you input your PIN? For "2 - unblock PIN" operation, you need to
authenticate as admin, did you input your PIN for admin? Wasn't it a failure of
PIN input for admin or user, whatever?

• gniibe claimed this task.Apr 19 2016, 6:41 AM
languitar added a comment.May 15 2016, 8:40 PM

Sorry for the delay. Here is the complete log:

  • SNIP ---

languitar@bird ~> gpg --card-edit

Reader ...........: REINER SCT cyberJack RFID standard (XXXXX) 00 00
Application ID ...: XXXXXX
Version ..........: 2.0
Manufacturer .....: Yubico
Serial number ....: XXXXXX
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 ...: rsa2048 rsa2048 rsa2048
Max. PIN lengths .: 127 127 127
PIN retry counter : 0 3 3
Signature counter : 3
Signature key ....: Some Stuff

created ....: Some Stuff

Encryption key....: Some Stuff

created ....: Some Stuff

Authentication key: Some Stuff

created ....: Some Stuff

General key info..: pub rsa2048/0xXXXXXXXXXXXXX somedate somename
<somemail@example.org>
sec> rsa2048/0xXXXXXXXXXXXXXXXX created: somedate expires: never

card-no: 0006 XXXXXX

ssb> rsa2048/0xXXXXXXXXXXXXXXXX created: somedate expires: never

card-no: 0006 XXXXXX

ssb> rsa2048/0xXXXXXXXXXXXXXXXX created: somedate expires: never

                                  card-no: 0006 XXXXXX

gpg/card> admin
Admin commands are allowed

gpg/card> unblock

[GUI asks for admin PIN and new PIN, which I entered]

gpg: OpenPGP card no. XXXXXX detected
Error changing the PIN: Conditions of use not satisfied

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

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

Your selection? 2
Error unblocking the PIN: Conditions of use not satisfied

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

Your selection? q

gpg/card> q
languitar@bird ~> gpg --version
gpg (GnuPG) 2.1.12
libgcrypt 1.7.0
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later https://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, ECDH, ECDSA, EDDSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,

CAMELLIA128, CAMELLIA192, CAMELLIA256

Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
languitar@bird ~> uname -a
Linux bird 4.5.4-1-ARCH #1 SMP PREEMPT Wed May 11 22:21:28 CEST 2016 x86_64 GNU/Linux

  • SNIP ---

Same thing works without problems using an older version of GPG on my mac.

• gniibe added a comment.May 18 2016, 1:18 PM

For some reason, I can't reproduce your problem in 2.1.x. Isn't it a problem of
your smartcard implementation?
Please describe the specific version number of GnuPG which is possible to
unblock this particular implementation of smartcard.

• gniibe added a comment.May 19 2016, 8:24 AM

My case with Gnuk Token.
First, I intentionally input wrong PIN for singing three times.
Then, I invoke gpg --card-edit (with 2.1.2 on Debian experimental) to unblock
the token by resetcode.

$ gpg --card-edit

Reader ...........: Free Software Initiative of Japan Gnuk (FSIJ-1.1.9-87021534)
00 00
Application ID ...: D276000124010200FFFE870215340000
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 87021534
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 0 2 3
Signature counter : 6
Signature key ....: 6E9A 631F 1997 F37C 7F4E 9952 8916 1D16 AA0D B710

created ....: 2016-05-19 05:09:13

Encryption key....: 0138 70C9 FA89 986F 2784 31A9 8AAA 8F21 ABD4 A70C

created ....: 2016-05-19 05:09:13

Authentication key: B2FE 8DAF 9494 3320 760F 38E2 30F6 A992 6870 02D6

created ....: 2016-05-19 05:11:14

General key info..: pub rsa4096/AA0DB710 2016-05-19 Chuji Kunisada
<chuji@gniibe.org>
sec> rsa4096/AA0DB710 created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/ABD4A70C created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/687002D6 created: 2016-05-19 expires: never

                        card-no: FFFE 87021534

gpg/card> unblock
gpg: OpenPGP card no. D276000124010200FFFE870215340000 detected

[ Resetcode ]
[ New PIN ]
[ Repeat New PIN ]

PIN changed.

gpg/card>

Reader ...........: Free Software Initiative of Japan Gnuk (FSIJ-1.1.9-87021534)
00 00
Application ID ...: D276000124010200FFFE870215340000
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 87021534
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 6
Signature key ....: 6E9A 631F 1997 F37C 7F4E 9952 8916 1D16 AA0D B710

created ....: 2016-05-19 05:09:13

Encryption key....: 0138 70C9 FA89 986F 2784 31A9 8AAA 8F21 ABD4 A70C

created ....: 2016-05-19 05:09:13

Authentication key: B2FE 8DAF 9494 3320 760F 38E2 30F6 A992 6870 02D6

created ....: 2016-05-19 05:11:14

General key info..: pub rsa4096/AA0DB710 2016-05-19 Chuji Kunisada
<chuji@gniibe.org>
sec> rsa4096/AA0DB710 created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/ABD4A70C created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/687002D6 created: 2016-05-19 expires: never

                        card-no: FFFE 87021534

gpg/card> quit

Please note that 'unblock' subcommand is to unblock with resetcode.

• gniibe added a project: Info Needed.May 19 2016, 8:24 AM
• gniibe changed Version from 2.1.11 to 2.1.11,2.1.12.

Here is another session after another three times failure.

This time, unblock by admin with Admin PIN.

$ gpg --card-edit

Reader ...........: Free Software Initiative of Japan Gnuk (FSIJ-1.1.9-87021534)
00 00
Application ID ...: D276000124010200FFFE870215340000
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 87021534
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 0 3 3
Signature counter : 6
Signature key ....: 6E9A 631F 1997 F37C 7F4E 9952 8916 1D16 AA0D B710

created ....: 2016-05-19 05:09:13

Encryption key....: 0138 70C9 FA89 986F 2784 31A9 8AAA 8F21 ABD4 A70C

created ....: 2016-05-19 05:09:13

Authentication key: B2FE 8DAF 9494 3320 760F 38E2 30F6 A992 6870 02D6

created ....: 2016-05-19 05:11:14

General key info..: pub rsa4096/AA0DB710 2016-05-19 Chuji Kunisada
<chuji@gniibe.org>
sec> rsa4096/AA0DB710 created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/ABD4A70C created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/687002D6 created: 2016-05-19 expires: never

                        card-no: FFFE 87021534

gpg/card> admin
Admin commands are allowed

gpg/card> passwd
gpg: OpenPGP card no. D276000124010200FFFE870215340000 detected

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

Your selection? 2

[ Admin PIN ]
[ New PIN ]
[ Repeat 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>

Reader ...........: Free Software Initiative of Japan Gnuk (FSIJ-1.1.9-87021534)
00 00
Application ID ...: D276000124010200FFFE870215340000
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 87021534
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 6
Signature key ....: 6E9A 631F 1997 F37C 7F4E 9952 8916 1D16 AA0D B710

created ....: 2016-05-19 05:09:13

Encryption key....: 0138 70C9 FA89 986F 2784 31A9 8AAA 8F21 ABD4 A70C

created ....: 2016-05-19 05:09:13

Authentication key: B2FE 8DAF 9494 3320 760F 38E2 30F6 A992 6870 02D6

created ....: 2016-05-19 05:11:14

General key info..: pub rsa4096/AA0DB710 2016-05-19 Chuji Kunisada
<chuji@gniibe.org>
sec> rsa4096/AA0DB710 created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/ABD4A70C created: 2016-05-19 expires: never

card-no: FFFE 87021534

ssb> rsa4096/687002D6 created: 2016-05-19 expires: never

                        card-no: FFFE 87021534

$

languitar added a comment.May 20 2016, 10:54 AM

This was possible on my mac with:

gpg (GnuPG) 2.0.30
libgcrypt 1.7.0
Copyright (C) 2015 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, RSA, 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

• gniibe added a comment.May 20 2016, 12:46 PM

Thank you for the version information which worked.

Speaking of the code of scdaemon, there is no difference for unblocking (by
resetcode and by admin) between 2.1.11/12 and 2.0.30.

Please note that there are two subcommands.

    admin -> passwd -> 2: unblocking by Admin
    unblock: unblocking by resetcode

Latter requires setting resetcode beforehand.

languitar added a comment.May 20 2016, 2:31 PM

is there any way to get better debug output so this can be tracked down?

• gniibe added a comment.Jul 29 2016, 2:53 AM

You can have a configuration file like:

.gnupg/gpg-agent.conf

enable-ssh-support
debug-level guru
debug-all

log-file /run/user/1000/gpg-agent.log

and

.gnupg/scdaemon.conf

debug-level guru
debug-all
debug-ccid-driver

log-file /run/user/1000/scd.log

so that the interactions can be recorded with debug information.

languitar added a comment.Jul 29 2016, 8:24 PM

Ok, I can record such files. Will there be any confidential information contained in
these logs?

languitar added a comment.Apr 30 2017, 2:35 PM

Ping? Otherwise I would provide the required information.

• gniibe added a comment.May 1 2017, 6:06 AM

The debug log includes communication between host PC and the reader, thus, it may include your input of PIN when you do that.

• gniibe closed this task as Resolved.Jun 4 2019, 2:29 AM