diff --git a/src/tasks/tasks01/gfmul.rs b/src/tasks/tasks01/gfmul.rs
index 9104114..dac7970 100644
--- a/src/tasks/tasks01/gfmul.rs
+++ b/src/tasks/tasks01/gfmul.rs
@@ -44,10 +44,13 @@ pub fn gfmul(args: &Value) -> Result<String> {
 
     if poly2.LSB_is_one() {
         result.xor_byte_arrays(&poly1);
+        poly2.right_shift();
+    } else {
+        poly2.right_shift();
     }
 
     while !poly2.is_empty() {
-        if !poly2.LSB_is_one() {
+        if poly2.LSB_is_one() {
             poly1.left_shift();
             poly1.xor_byte_arrays(&red_poly_bytes);
             eprintln!("Poly1 after reduction: {:01X?}", poly1);
diff --git a/src/utils/math.rs b/src/utils/math.rs
index 4392b86..5fff14a 100644
--- a/src/utils/math.rs
+++ b/src/utils/math.rs
@@ -69,8 +69,8 @@ mod tests {
 
     #[test]
     fn test_byte_array_shift2() {
-        let mut byte_array: ByteArray = ByteArray(vec![0x00, 0xFF]);
-        let shifted_array: ByteArray = ByteArray(vec![0x01, 0xFE]);
+        let mut byte_array: ByteArray = ByteArray(vec![0xFF, 0x00]);
+        let shifted_array: ByteArray = ByteArray(vec![0xFE, 0x01]);
         byte_array.left_shift();
 
         assert_eq!(
@@ -80,13 +80,29 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_byte_array_shift_right() {
+        let mut byte_array: ByteArray = ByteArray(vec![0x02]);
+        let shifted_array: ByteArray = ByteArray(vec![0x01]);
+        byte_array.right_shift();
+
+        assert_eq!(
+            byte_array.0, shifted_array.0,
+            "Failure: Shifted array was: {:?}",
+            byte_array.0
+        );
+    }
+
     #[test]
     fn test_lsb_one() {
         let mut byte_array: ByteArray = ByteArray(vec![0x00, 0xFF]);
-        assert!(byte_array.LSB_is_one());
+        assert!(!byte_array.LSB_is_one());
 
-        let mut byte_array2: ByteArray = ByteArray(vec![0x00, 0x02]);
+        let mut byte_array2: ByteArray = ByteArray(vec![0x02, 0xFF]);
         assert!(!byte_array2.LSB_is_one());
+
+        let mut byte_array3: ByteArray = ByteArray(vec![0xFF, 0x00]);
+        assert!(byte_array3.LSB_is_one());
     }
 
     #[test]