2 files changed, 4 insertions, 3 deletions
diff --git a/challenge/c05.go b/challenge/c05.go
index 7f22663..96f0893 100644
--- a/challenge/c05.go
+++ b/challenge/c05.go
@@ -15,7 +15,7 @@ var key string = "ICE"
 
 func C5() {
 	es := lib.RepeatingXOR(icebaby, key)
-	hs := lib.BytesToHexStr([]byte(es))
+	hs := lib.AsciiStrToHexStr(es)
 
 	fmt.Printf("RepeatingXOR('%v', '%v') = %v\n", icebaby, key, hs)
 }
diff --git a/lib/hex.go b/lib/hex.go
index 5b1741f..0087f33 100644
--- a/lib/hex.go
+++ b/lib/hex.go
@@ -54,12 +54,13 @@ func ByteToHexStr(b byte) string {
 	return s
 }
 
-func BytesToHexStr(bs []byte) string {
+func AsciiStrToHexStr(as string) string {
 	hs := ""
-	if len(bs) < 1 {
+	if len(as) < 1 {
 		return hs
 	}
 
+	bs := []byte(as)
 	for i := 0; i < len(bs); i++ {
 		hs += ByteToHexStr(bs[i])
 	}