Works sorta

wiegand.go

@@ -1,7 +1,10 @@
 package main
 
 import (
+	"encoding/binary"
+	"encoding/hex"
 	"fmt"
+	"golang.org/x/crypto/scrypt"
 	"time"
 )
 
@@ -36,7 +39,7 @@ func printCardId(card uint64) {
 	fmt.Printf("\n")
 }
 
-func (w *Wiegand) cardRunner() {
+func (w *Wiegand) cardRunner(validUids ValidUids) {
 	for {
 		// Wait for bit timeout
 		fmt.Printf("Waiting for bit timeout\n")
@@ -56,6 +59,24 @@ func (w *Wiegand) cardRunner() {
 
 		printCardId(card)
 
+		b := make([]byte, 8)
+		binary.LittleEndian.PutUint64(b, card)
+		hashed, err := scrypt.Key(b, []byte("hashsah"), 16384, 8, 1, 64)
+		if err != nil {
+			panic(err)
+		}
+
+		hashedHex := hex.EncodeToString(hashed)
+		fmt.Println(hashedHex)
+
+		_, ok := validUids[hashedHex]
+		if ok {
+			fmt.Println("Opening door")
+			w.OpenDoor()
+		} else {
+			fmt.Println("Unknown card")
+		}
+
 		w.bitNr = 0
 	}
 }