base64 encoding for host

pkg/backy/ssh.go

@@ -2,6 +2,7 @@ package backy
 
 import (
 	"bufio"
+	"encoding/base64"
 	"errors"
 	"fmt"
 	"log"
@@ -140,7 +141,7 @@ func getHostKey(host string) ssh.PublicKey {
 		if len(fields) != 3 {
 			continue
 		}
-		if strings.Contains(fields[0], host) {
+		if strings.Contains(fields[0], base64.StdEncoding.EncodeToString([]byte(host))) {
 			var err error
 			hostKey, _, _, _, err = ssh.ParseAuthorizedKey(scanner.Bytes())
 			if err != nil {