YUBICO-PIV-TOOL(1)

NAME
yubico-piv-tool - Tool for managing Personal Identity Verification credentials on Yubikeys

SYNOPSIS
yubico-piv-tool [OPTION]...

DESCRIPTION

-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]
    Management key to use, if no value is specified key will be asked for (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", "verify-bio", "change-pin", "change-puk", "unblock-pin", "selfsign-certificate", "delete-certificate", "read-certificate", "read-public-key", "status", "test-signature", "test-decipher", "list-readers", "set-ccc", "write-object", "read-object", "attest", "move-key", "delete-key")

    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", "82", "83", "84", "85", "86", "87", "88", "89", "8a", "8b", "8c", "8d", "8e", "8f", "90", "91", "92", "93", "94", "95", "f9")

    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

--to-slot=ENUM
    What slot to move an existing key to (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")

    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

-A, --algorithm=ENUM
    What algorithm to use (possible values="RSA1024", "RSA2048", "RSA3072", "RSA4096", "ECCP256", "ECCP384", "ED25519", "X25519" default=`RSA2048')

-H, --hash=ENUM
    Hash to use for signatures (possible values="SHA1", "SHA256", "SHA384", "SHA512" default=`SHA256')

-n, --new-key=STRING
    New management key to use for action set-mgm-key, if omitted key will be asked for

--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", "SSH" default=`PEM')

--compress
    Compress a large certificate using GZIP before import (default=off)

--global
    Reset the whole device over all applications (default=off)

-p, --password=STRING
    Password for decryption of private key file, if omitted password will be asked for

-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/

--serial=INT
    Serial number of the self-signed certificate

--valid-days=INT
    Time (in days) until the self-signed certificate expires (default=`365')

-P, --pin=STRING
    Pin/puk code for verification, if omitted pin/puk will be asked for

-N, --new-pin=STRING
    New pin/puk code for changing, if omitted pin/puk will be asked for

--pin-policy=ENUM
    Set pin policy for action generate or import-key. Only available on YubiKey 4 or newer (possible values="never", "once", "always", "matchonce", "matchalways")

--touch-policy=ENUM
    Set touch policy for action generate, import-key or set-mgm-key. Only available on YubiKey 4 or newer (possible values="never", "always", "cached")

--id=INT
    Id of object for write/read object

-f, --format=ENUM
    Format of data for write/read object (possible values="hex", "base64", "binary" default=`hex')

--attestation
    Add attestation cross-signature (default=off)

-m, --new-key-algo=ENUM
    New management key algorithm to use for action set-mgm-key (possible values="TDES", "AES128", "AES192", "AES256" default=`TDES')

--scp11
    Communication with the YubiKey is done over an encrypted channel. DEPRECATED! Please use the '--enc' flag instead (default=off)

--enc
    Communication with the YubiKey is done over an encrypted channel (default=off)