.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.49.2.
.TH YUBICO-PIV-TOOL "1" "May 2022" "yubico-piv-tool 2.2.0" "User Commands"
.SH NAME
yubico-piv-tool \- Tool for managing Personal Identity Verification credentials on Yubikeys
.SH SYNOPSIS
.B yubico-piv-tool
[\fI\,OPTION\/\fR]...
.SH DESCRIPTION
.TP
\fB\-h\fR, \fB\-\-help\fR
Print help and exit
.TP
\fB\-\-full\-help\fR
Print help, including hidden options, and exit
.TP
\fB\-V\fR, \fB\-\-version\fR
Print version and exit
.TP
\fB\-v\fR, \fB\-\-verbose\fR[=\fI\,INT\/\fR]
Print more information  (default=`0')
.TP
\fB\-r\fR, \fB\-\-reader\fR=\fI\,STRING\/\fR
Only use a matching reader  (default=`Yubikey')
.TP
\fB\-k\fR, \fB\-\-key\fR[=\fI\,STRING\/\fR]
Management key to use, if no value is specified key
will be asked for
(default=`010203040506070801020304050607080102030405060708')
.TP
\fB\-a\fR, \fB\-\-action\fR=\fI\,ENUM\/\fR
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",
"list\-readers", "set\-ccc", "write\-object",
"read\-object", "attest")
.IP
Multiple actions may be given at once and will be executed in order
for example \fB\-\-action\fR=\fI\,verify\-pin\/\fR \fB\-\-action\fR=\fI\,request\-certificate\/\fR
.TP
\fB\-s\fR, \fB\-\-slot\fR=\fI\,ENUM\/\fR
What key slot to operate on  (possible
values="9a", "9c", "9d", "9e", "82",
"83", "84", "85", "86", "87", "88",
"89", "8a", "8b", "8c", "8d", "8e",
"8f", "90", "91", "92", "93", "94",
"95", "f9")
.IP
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)
82\-95 is for Retired Key Management
f9 is for Attestation
.TP
\fB\-A\fR, \fB\-\-algorithm\fR=\fI\,ENUM\/\fR
What algorithm to use  (possible values="RSA1024",
"RSA2048", "ECCP256", "ECCP384"
default=`RSA2048')
.TP
\fB\-H\fR, \fB\-\-hash\fR=\fI\,ENUM\/\fR
Hash to use for signatures  (possible
values="SHA1", "SHA256", "SHA384",
"SHA512" default=`SHA256')
.TP
\fB\-n\fR, \fB\-\-new\-key\fR=\fI\,STRING\/\fR
New management key to use for action set\-mgm\-key, if
omitted key will be asked for
.TP
\fB\-\-pin\-retries\fR=\fI\,INT\/\fR
Number of retries before the pin code is blocked
.TP
\fB\-\-puk\-retries\fR=\fI\,INT\/\fR
Number of retries before the puk code is blocked
.TP
\fB\-i\fR, \fB\-\-input\fR=\fI\,STRING\/\fR
Filename to use as input, \- for stdin  (default=`\-')
.TP
\fB\-o\fR, \fB\-\-output\fR=\fI\,STRING\/\fR
Filename to use as output, \- for stdout
(default=`\-')
.TP
\fB\-K\fR, \fB\-\-key\-format\fR=\fI\,ENUM\/\fR
Format of the key being read/written  (possible
values="PEM", "PKCS12", "GZIP", "DER",
"SSH" default=`PEM')
.TP
\fB\-p\fR, \fB\-\-password\fR=\fI\,STRING\/\fR
Password for decryption of private key file, if
omitted password will be asked for
.TP
\fB\-S\fR, \fB\-\-subject\fR=\fI\,STRING\/\fR
The subject to use for certificate request
.IP
The subject must be written as:
/CN=host.example.com/OU=test/O=example.com/
.TP
\fB\-\-serial\fR=\fI\,INT\/\fR
Serial number of the self\-signed certificate
.TP
\fB\-\-valid\-days\fR=\fI\,INT\/\fR
Time (in days) until the self\-signed certificate
expires  (default=`365')
.TP
\fB\-P\fR, \fB\-\-pin\fR=\fI\,STRING\/\fR
Pin/puk code for verification, if omitted pin/puk
will be asked for
.TP
\fB\-N\fR, \fB\-\-new\-pin\fR=\fI\,STRING\/\fR
New pin/puk code for changing, if omitted pin/puk
will be asked for
.TP
\fB\-\-pin\-policy\fR=\fI\,ENUM\/\fR
Set pin policy for action generate or import\-key.
Only available on YubiKey 4  (possible
values="never", "once", "always")
.TP
\fB\-\-touch\-policy\fR=\fI\,ENUM\/\fR
Set touch policy for action generate, import\-key or
set\-mgm\-key. Only available on YubiKey 4
(possible values="never", "always",
"cached")
.TP
\fB\-\-id\fR=\fI\,INT\/\fR
Id of object for write/read object
.TP
\fB\-f\fR, \fB\-\-format\fR=\fI\,ENUM\/\fR
Format of data for write/read object  (possible
values="hex", "base64", "binary"
default=`hex')
.TP
\fB\-\-attestation\fR
Add attestation cross\-signature  (default=off)