10장. Troubleshooting authentication with smart cards

Procedure

1. Using the lsusb command, verify that the smart card reader is visible to the operating system:

   $ lsusb
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 072f:b100 Advanced Card Systems, Ltd ACR39U
   Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

   For more information about the smart cards and readers tested and supported in RHEL, see Smart Card support in RHEL 10.

2. Ensure that the pcscd service and socket are enabled and running:

   $ systemctl status pcscd.service pcscd.socket
   
   ● pcscd.service - PC/SC Smart Card Daemon
         Loaded: loaded (/usr/lib/systemd/system/pcscd.service; indirect;
   vendor preset: disabled)
         Active: active (running) since Fri 2021-09-24 11:05:04 CEST; 2
   weeks 6 days ago
   TriggeredBy: ● pcscd.socket
           Docs: man:pcscd(8)
       Main PID: 3772184 (pcscd)
          Tasks: 12 (limit: 38201)
         Memory: 8.2M
            CPU: 1min 8.067s
         CGroup: /system.slice/pcscd.service
                 └─3772184 /usr/sbin/pcscd --foreground --auto-exit
   
   ● pcscd.socket - PC/SC Smart Card Daemon Activation Socket
         Loaded: loaded (/usr/lib/systemd/system/pcscd.socket; enabled;
   vendor preset: enabled)
         Active: active (running) since Fri 2021-09-24 11:05:04 CEST; 2
   weeks 6 days ago
       Triggers: ● pcscd.service
         Listen: /run/pcscd/pcscd.comm (Stream)
         CGroup: /system.slice/pcscd.socket

3. Using the p11-kit list-modules command, display information about the configured smart card and the tokens present on the smart card:

   $ p11-kit list-modules
   p11-kit-trust: p11-kit-trust.so
   [...]
   opensc: opensc-pkcs11.so
       library-description: OpenSC smartcard framework
       library-manufacturer: OpenSC Project
       library-version: 0.20
       token: MyEID (sctest)
           manufacturer: Aventra Ltd.
           model: PKCS#15
           serial-number: 8185043840990797
           firmware-version: 40.1
           flags:
                  rng
                  login-required
                  user-pin-initialized
                  token-initialized

4. Verify you can access the contents of your smart card:

   $ pkcs11-tool --list-objects --login
   Using slot 0 with a present token (0x0)
   Logging in to "MyEID (sctest)".
   Please enter User PIN:
   Private Key Object; RSA
     label:      Certificate
     ID:         01
     Usage:      sign
     Access:     sensitive
   Public Key Object; RSA 2048 bits
     label:      Public Key
     ID:         01
     Usage:      verify
     Access:     none
   Certificate Object; type = X.509 cert
     label:      Certificate
     subject:    DN: O=IDM.EXAMPLE.COM, CN=idmuser1
     ID:         01

5. Display the contents of the certificate on your smart card using the certutil command:

   1. Run the following command to determine the correct name of your certificate:

      $ certutil -d /etc/pki/nssdb -L -h all
      
      Certificate Nickname                                         Trust Attributes
                                                                   SSL,S/MIME,JAR/XPI
      
      Enter Password or Pin for "MyEID (sctest)":
      Smart Card CA 0f5019a8-7e65-46a1-afe5-8e17c256ae00           CT,C,C
      MyEID (sctest):Certificate                                   u,u,u

   2. Display the contents of the certificate on your smart card:

      참고

      Ensure the name of the certificate is an exact match for the output displayed in the previous step, in this example MyEID (sctest):Certificate.

      $ certutil -d /etc/pki/nssdb -L -n "MyEID (sctest):Certificate"
      
      Enter Password or Pin for "MyEID (sctest)":
      Certificate:
          Data:
              Version: 3 (0x2)
              Serial Number: 15 (0xf)
              Signature Algorithm: PKCS #1 SHA-256 With RSA Encryption
              Issuer: "CN=Certificate Authority,O=IDM.EXAMPLE.COM"
              Validity:
                  Not Before: Thu Sep 30 14:01:41 2021
                  Not After : Sun Oct 01 14:01:41 2023
              Subject: "CN=idmuser1,O=IDM.EXAMPLE.COM"
              Subject Public Key Info:
                  Public Key Algorithm: PKCS #1 RSA Encryption
                  RSA Public Key:
                      Modulus:
                          [...]
                      Exponent: 65537 (0x10001)
              Signed Extensions:
                  Name: Certificate Authority Key Identifier
                  Key ID:
                      e2:27:56:0d:2f:f5:f2:72:ce:de:37:20:44:8f:18:7f:
                      2f:56:f9:1a
      
                  Name: Authority Information Access
                  Method: PKIX Online Certificate Status Protocol
                  Location:
                      URI: "http://ipa-ca.idm.example.com/ca/ocsp"
      
                  Name: Certificate Key Usage
                  Critical: True
                  Usages: Digital Signature
                          Non-Repudiation
                          Key Encipherment
                          Data Encipherment
      
                  Name: Extended Key Usage
                      TLS Web Server Authentication Certificate
                      TLS Web Client Authentication Certificate
      
                  Name: CRL Distribution Points
                  Distribution point:
                      URI: "http://ipa-ca.idm.example.com/ipa/crl/MasterCRL.bin"
                      CRL issuer:
                          Directory Name: "CN=Certificate Authority,O=ipaca"
      
                  Name: Certificate Subject Key ID
                  Data:
                      43:23:9f:c1:cf:b1:9f:51:18:be:05:b5:44:dc:e6:ab:
                      be:07:1f:36
      
          Signature Algorithm: PKCS #1 SHA-256 With RSA Encryption
          Signature:
              [...]
          Fingerprint (SHA-256):
              6A:F9:64:F7:F2:A2:B5:04:88:27:6E:B8:53:3E:44:3E:F5:75:85:91:34:ED:48:A8:0D:F0:31:5D:7B:C9:E0:EC
          Fingerprint (SHA1):
              B4:9A:59:9F:1C:A8:5D:0E:C1:A2:41:EC:FD:43:E0:80:5F:63:DF:29
      
          Mozilla-CA-Policy: false (attribute missing)
          Certificate Trust Flags:
              SSL Flags:
                  User
              Email Flags:
                  User
              Object Signing Flags:
                  User