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+# go-pkcs11uri
+
+Welcome to the go-pkcs11uri library. The implementation follows [RFC 7512](https://tools.ietf.org/html/rfc7512) and this [errata](https://www.rfc-editor.org/errata/rfc7512).
+
+# Exampe usage:
+
+The following example builds on this library [here](https://github.com/miekg/pkcs11) and are using softhsm2 on Fedora.
+
+## Example
+
+This example program extending the one found [here](https://github.com/miekg/pkcs11/blob/master/README.md#examples):
+
+```
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+
+	"github.com/miekg/pkcs11"
+	pkcs11uri "github.com/stefanberger/go-pkcs11uri"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		panic("Missing pkcs11 URI argument")
+	}
+	uristr := os.Args[1]
+
+	uri, err := pkcs11uri.New()
+	if err != nil {
+		panic(err)
+	}
+	err = uri.Parse(uristr)
+	if err != nil {
+		panic(err)
+	}
+
+	module, err := uri.GetModule()
+	if err != nil {
+		panic(err)
+	}
+
+	slot, ok := uri.GetPathAttribute("slot-id", false)
+	if !ok {
+		panic("No slot-id in pkcs11 URI")
+	}
+	slotid, err := strconv.Atoi(slot)
+	if err != nil {
+		panic(err)
+	}
+
+	pin, err := uri.GetPIN()
+	if err != nil {
+		panic(err)
+	}
+
+	p := pkcs11.New(module)
+	err = p.Initialize()
+	if err != nil {
+		panic(err)
+	}
+
+	defer p.Destroy()
+	defer p.Finalize()
+
+	session, err := p.OpenSession(uint(slotid), pkcs11.CKF_SERIAL_SESSION|pkcs11.CKF_RW_SESSION)
+	if err != nil {
+		panic(err)
+	}
+	defer p.CloseSession(session)
+
+	err = p.Login(session, pkcs11.CKU_USER, pin)
+	if err != nil {
+		panic(err)
+	}
+	defer p.Logout(session)
+
+	p.DigestInit(session, []*pkcs11.Mechanism{pkcs11.NewMechanism(pkcs11.CKM_SHA_1, nil)})
+	hash, err := p.Digest(session, []byte("this is a string"))
+	if err != nil {
+		panic(err)
+	}
+
+	for _, d := range hash {
+		fmt.Printf("%x", d)
+	}
+	fmt.Println()
+}
+```
+
+## Exampe Usage
+
+```
+$ sudo softhsm2-util --init-token --slot 1 --label test --pin 1234 --so-pin 1234
+The token has been initialized and is reassigned to slot 2053753261
+$ go build ./...
+$ sudo ./pkcs11-example 'pkcs11:slot-id=2053753261?module-path=/usr/lib64/pkcs11/libsofthsm2.so&pin-value=1234'
+517592df8fec3ad146a79a9af153db2a4d784ec5
+```
+