NAME

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

SYNOPSIS

yubico-piv-tool [OPTION]...

-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", "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: Use encrypted communication as specified by Secure Channel Protocol 11 (SCP11b) (default=off)