NAME

       ykls - go-ykpiv

       go-ykpiv is a high level cgo wrapper around libykpiv.so.1 that implements an idiomatic go API fit for use
       when applications need to communicate with a Yubikey in PIV mode.

What's PIV?

       PIV Cards are cards defined by FIPS 201, a Federal US Government standard defining the ID cards employees
       use.  At its core, it's a set of x509 Certificates and corresponding private keys in a configuration that
       is standardized across implementations.

       For more details on how PIV Tokens can be used, the  FICAM  (Federal  Identity,  Credential,  and  Access
       Management)  team  at  GSA  (General  Services  Administration) has published some guides on GitHub under
       GSA/piv-guides https://github.com/GSA/piv-guides

How is this different than OpenSC?

       Most  PIV   tokens,   Yubikeys   included,   can   be   used   as   a   PKCS#11   device   using   OpenSC
       https://github.com/opensc/opensc,  and  Yubikeys are even capable of doing Signing and Decryption through
       that interface. However, some management functions are not exposed in the PKCS#11  OpenSC  interface,  so
       this library may be of use when one wants to write a new Certificate, or set PINs.

Testing

       To  run  the tests, you'll need to find a Yubikey that you're willing to wipe clean, and destroy all data
       on it. After you've found such a key, remove all other Yubikeys from your machine.

       The tests will panic if the YKPIV_YES_DESTROY_MY_KEY environment variable is unset.

       Running the tests will reset your Yubikey a few times (once per test), and you will wind up  with  a  key
       with the default PIN, PUK and Management Key.

Debian

       sudo apt install build-essential libykpiv-dev go get pault.ag/go/ykpiv

MacOS X

       brew install yubico-piv-tool go get pault.ag/go/ykpiv```go package main

       import (  "fmt"

           "pault.ag/go/ykpiv" )

       func main() {  yubikey, err := ykpiv.New(ykpiv.Options{          // Verbose: true,        Reader: "Yubico
       Yubikey NEO U2F+CCID 01 00",  })   if err != nil {          panic(err)     }    defer yubikey.Close()

           version, err := yubikey.Version()
           if err != nil {
                panic(err)
           }
           fmt.Printf("Application version %s found.\n", version) } ```

       1.  Download yubico-piv-tool-1.7.0-win64.zip from the official site

       2.  Create directory win in the root of the project

       3.  Copy lib and include directories from the downloaded archive to the win directory

       4.  Copy all DLLs from the bin directory in the archive to the root of your project

       5.  Copy libwinpthread-1.dll from C:\TDM-GCC-64\bin to the root of your project

       Eric Chiang has published piv-go https://github.com/ericchiang/piv-go, a go implementation of the yubikey
       piv bindings.``` Copyright (c) Paul R. Tagliamonte paultag@gmail.com, 2017

       Permission  is  hereby  granted,  free  of  charge,  to  any person obtaining a copy of this software and
       associated documentation files (the "Software"), to deal in the Software without  restriction,  including
       without  limitation  the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to  the
       following conditions:

       The  above  copyright  notice  and  this permission notice shall be included in all copies or substantial
       portions of the Software.

       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  IMPLIED,  INCLUDING  BUT  NOT
       LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
       EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
       IN  AN  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
       THE USE OR OTHER DEALINGS IN THE SOFTWARE. ```

The Debian Project                                  June 2025                                             YKLS()