NAME

       yubico-piv-tool - Yubico PIV tool

SYNOPSIS

       yubico-piv-tool [OPTIONS]...

DESCRIPTION

       yubico-piv-tool 1.0.3

       -h, --help
              Print help and exit

       --full-help
              Print help, including hidden options, and exit

       -V, --version
              Print version and exit

       -v, --verbose[=INT]
              Print more information  (default=`0')

       -r, --reader=STRING
              Only use a matching reader  (default=`Yubikey')

       -k, --key=STRING
              Authentication                     key                    to                    use
              (default=`010203040506070801020304050607080102030405060708')

       -a, --action=ENUM
              Action to take  (possible  values="version",  "generate",  "set-mgm-key",  "reset",
              "pin-retries",        "import-key",        "import-certificate",       "set-chuid",
              "request-certificate",  "verify-pin",  "change-pin",  "change-puk",  "unblock-pin",
              "selfsign-certificate",    "delete-certificate",    "read-certificate",   "status",
              "test-signature", "test-decipher")

              Multiple actions may be given at once and will be executed  in  order  for  example
              --action=verify-pin --action=request-certificate

       -s, --slot=ENUM
              What key slot to operate on  (possible values="9a", "9c", "9d", "9e")

              9a is for PIV Authentication 9c is for Digital Signature (PIN always checked) 9d is
              for Key Management 9e is for Card Authentication (PIN never checked)

       -A, --algorithm=ENUM
              What  algorithm  to   use    (possible   values="RSA1024",   "RSA2048",   "ECCP256"
              default=`RSA2048')

       -H, --hash=ENUM
              Hash   to   use   for   signatures   (possible  values="SHA1",  "SHA256",  "SHA512"
              default=`SHA256')

       -n, --new-key=STRING
              New authentication key to use

       --pin-retries=INT
              Number of retries before the pin code is blocked

       --puk-retries=INT
              Number of retries before the puk code is blocked

       -i, --input=STRING
              Filename to use as input, - for stdin  (default=`-')

       -o, --output=STRING
              Filename to use as output, - for stdout  (default=`-')

       -K, --key-format=ENUM
              Format of the key being read/written   (possible  values="PEM",  "PKCS12",  "GZIP",
              "DER" default=`PEM')

       -p, --password=STRING
              Password for decryption of private key file

       -S, --subject=STRING
              The subject to use for certificate request

              The subject must be written as: /CN=host.example.com/OU=test/O=example.com/

       -P, --pin=STRING
              Pin/puk code for verification

       -N, --new-pin=STRING
              New pin/puk code for changing

EXAMPLES

       For  more  information  about  what's happening --verbose can be added to any command. For
       much more information --verbose=2 may be used.

       Display what version of the applet is running on the YubiKey Neo:

          yubico-piv-tool -a version

       Generate a new ECC-P256 key on device in slot 9a, will print the public key on stdout:

          yubico-piv-tool -s 9a -A ECCP256 -a generate

       Generate a certificate request with public  key  from  stdin,  will  print  the  resulting
       request on stdout:

          yubico-piv-tool -s 9a -S '/CN=foo/OU=test/O=example.com/' -P 123456 \
            -a verify -a request

       Generate a self-signed certificate with public key from stdin, will print the certificate,
       for later import, on stdout:

          yubico-piv-tool -s 9a -S '/CN=bar/OU=test/O=example.com/' -P 123456 \
            -a verify -a selfsign

       Import a certificate from stdin:

          yubico-piv-tool -s 9a -a import-certificate

       Set a random chuid, import a key and import a certificate from a PKCS12 file with password
       test, into slot 9c:

          yubico-piv-tool -s 9c -i test.pfx -K PKCS12 -p test -a set-chuid \
            -a import-key -a import-cert

       Import  a  certificate  which  is  larger than 2048 bytes and thus requires compression in
       order to fit:

         openssl x509 -in cert.pem -outform DER | gzip -9 > der.gz
         yubico-piv-tool -s 9c -i der.gz -K GZIP -a import-cert

       Change the management key used for administrative authentication:

          yubico-piv-tool -n 0807605403020108070605040302010807060504030201 \
            -a set-mgm-key

       Delete a certificate in slot 9a:

         yubico-piv-tool -a delete-certificate -s 9a

       Show some information on certificates and other data:

         yubico-piv-tool -a status

       Read out the certificate from a slot and then run a signature test:

         yubico-piv-tool -a read-cert -s 9a
         yubico-piv-tool -a verify-pin -P 123456 -a test-signature -s 9a