diff --git a/src/binary/mod.rs b/src/binary/mod.rs
index 20916df..f348714 100644
--- a/src/binary/mod.rs
+++ b/src/binary/mod.rs
@@ -21,3 +21,8 @@ pub fn rotl32 (value: u32, count: u32) -> u32 {
 pub fn rotr32 (value: u32, count: u32) -> u32 {
     value.rotate_right(count as u32)
 }
+
+#[pyfunction]
+pub fn xor(a: u128, b: u128) -> u128 {
+    a | b
+}
diff --git a/src/lib.rs b/src/lib.rs
index 63bb029..e279819 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,6 +28,7 @@ fn register_binary_module(py: Python, parent_module: &PyModule) -> PyResult<()>
     let binary_module = PyModule::new(py, "binary")?;
     binary_module.add_function(wrap_pyfunction!(binary::rotl32, binary_module)?)?;
     binary_module.add_function(wrap_pyfunction!(binary::rotr32, binary_module)?)?;
+    binary_module.add_function(wrap_pyfunction!(binary::xor, binary_module)?)?;
     parent_module.add_submodule(binary_module)?;
     Ok(())
 }
diff --git a/src/main.rs b/src/main.rs
index 21d7e1b..d64bd9b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -81,6 +81,7 @@ enum BinaryActions {
     /// bit rotation/circular shifting (only 32bit)
     #[command(name="rotate")]
     Rotate(RotateArgs),
+    Xor(XorArgs)
 }
 
 #[derive(Args, Clone, Debug, PartialEq, Eq)]
@@ -91,6 +92,12 @@ struct RotateArgs {
     shift_width: u32,
 }
 
+#[derive(Args, Clone, Debug, PartialEq, Eq)]
+struct XorArgs {
+    a: u128,
+    b: u128,
+}
+
 /*************************************************************************************************/
 /// main function of plexcryptool.
 ///
@@ -131,6 +138,15 @@ pub fn main() {
                     else {
                         println!("result is {}", result)
                     }
+                },
+                BinaryActions::Xor(bin_xor_args) => {
+                    let result: u128 = binary::xor(bin_xor_args.a, bin_xor_args.b);
+                    if args.machine {
+                        println!("{}", result)
+                    }
+                    else {
+                        println!("result is {}", result)
+                    }
                 }
             }