diff --git a/libpaket/src/locker/command.rs b/libpaket/src/locker/command.rs
index 7817b41..b4d085e 100644
--- a/libpaket/src/locker/command.rs
+++ b/libpaket/src/locker/command.rs
@@ -1,5 +1,6 @@
 use num_enum::TryFromPrimitive;
 use uuid::Uuid;
+use super::utils::{PrimitiveBuilder, PrimitiveReader};
 
 use crate::{LibraryError, LibraryResult};
 
@@ -81,104 +82,6 @@ pub struct Command {
     metadata: Vec<u8>
 }
 
-struct PrimitiveBuilder {
-    bin: Vec<u8>,
-}
-
-impl PrimitiveBuilder {
-    fn new() -> Self {
-        PrimitiveBuilder {
-            bin: Vec::new()
-        }
-    }
-
-    fn write_u8(self, number: u8) -> Self {
-        self.write_array(&[number])
-    }
-
-    fn write_u16(self, number: u16) -> Self {
-        self.write_array(&number.to_be_bytes())
-    }
-
-    fn write_u32(self, number: u32) -> Self {
-        self.write_array(&number.to_be_bytes())
-    }
-
-    fn write_array(mut self, new: &[u8]) -> Self {
-        for b in new {
-            self.bin.push(*b);
-        }
-        
-        self
-    }
-
-    fn write_array_with_len(self, bin: &[u8]) -> Self {
-        self
-        .write_u32(bin.len() as u32)
-        .write_array(bin)
-    }
-
-    fn finish(self) -> Vec<u8> {
-        self.bin
-    }
-}
-
-struct PrimitiveReader<'a> {
-    offset: usize,
-    vec: &'a [u8],
-}
-
-// Yes, I know Cursor exists and eio exists. from_be_bytes should be a stdlib trait tho. 
-impl<'a> PrimitiveReader<'a> {
-    fn read_u8(&mut self) -> u8 {
-        let number = self.vec[self.offset];
-        self.offset += 1;
-        number
-    }
-
-    fn read_u16(&mut self) -> u16 {
-        let arr: [u8; 2]  = self.read_arr_const();
-        u16::from_be_bytes(arr)
-    }
-
-    fn read_u32(&mut self) -> u32 {
-        let arr: [u8; 4]  = self.read_arr_const();
-        u32::from_be_bytes(arr)
-    }
-
-    fn read_u64(&mut self) -> u64 {
-        let arr: [u8; 8]  = self.read_arr_const();
-        u64::from_be_bytes(arr)
-    }
-
-    fn read_arr_const<const N: usize>(&mut self) -> [u8; N] {
-        let mut arr = [0u8; N];
-        for n in 0..N {
-            arr[n] = self.read_u8();
-        }
-        
-        return arr;
-    }
-
-    fn read_arr(&mut self, n: usize) -> Vec<u8> {
-        let mut arr: Vec<u8> = vec![];
-        for _ in 0..n {
-            arr.push(self.read_u8());
-        }
-
-        arr
-    }
-
-    fn read_arr_from_len(&mut self) -> Vec<u8> {
-        let size = self.read_u32() as usize;
-        self.read_arr(size)
-    }
-
-    fn left_to_process(&self) -> usize {
-        self.vec.len() - self.offset
-    }
-}
-
 impl Command {
     fn checksum(bin: &[u8]) -> u16 {
         // CRC16 of some kind...
diff --git a/libpaket/src/locker/mod.rs b/libpaket/src/locker/mod.rs
index eee28ae..991186a 100644
--- a/libpaket/src/locker/mod.rs
+++ b/libpaket/src/locker/mod.rs
@@ -8,6 +8,8 @@ pub use types::*;
 mod api;
 pub mod crypto;
 
+pub(crate) mod utils;
+
 #[cfg(feature = "locker_register_base")]
 mod register_base;
 #[cfg(feature = "locker_register_regtoken")]
diff --git a/libpaket/src/locker/utils.rs b/libpaket/src/locker/utils.rs
new file mode 100644
index 0000000..e6dff03
--- /dev/null
+++ b/libpaket/src/locker/utils.rs
@@ -0,0 +1,93 @@
+pub(crate) struct PrimitiveBuilder {
+    pub bin: Vec<u8>,
+}
+
+impl PrimitiveBuilder {
+    pub(crate) fn new() -> Self {
+        PrimitiveBuilder { bin: Vec::new() }
+    }
+
+    pub(crate) fn write_u8(self, number: u8) -> Self {
+        self.write_array(&[number])
+    }
+
+    pub(crate) fn write_u16(self, number: u16) -> Self {
+        self.write_array(&number.to_be_bytes())
+    }
+
+    pub(crate) fn write_u32(self, number: u32) -> Self {
+        self.write_array(&number.to_be_bytes())
+    }
+
+    pub(crate) fn write_array(mut self, new: &[u8]) -> Self {
+        for b in new {
+            self.bin.push(*b);
+        }
+
+        self
+    }
+
+    pub(crate) fn write_array_with_len(self, bin: &[u8]) -> Self {
+        self.write_u32(bin.len() as u32).write_array(bin)
+    }
+
+    pub(crate) fn finish(self) -> Vec<u8> {
+        self.bin
+    }
+}
+
+pub(crate) struct PrimitiveReader<'a> {
+    pub offset: usize,
+    pub vec: &'a [u8],
+}
+
+// Yes, I know Cursor exists and eio exists. from_be_bytes should be a stdlib trait tho.
+impl<'a> PrimitiveReader<'a> {
+    pub(crate) fn read_u8(&mut self) -> u8 {
+        let number = self.vec[self.offset];
+        self.offset += 1;
+        number
+    }
+
+    pub(crate) fn read_u16(&mut self) -> u16 {
+        let arr: [u8; 2] = self.read_arr_const();
+        u16::from_be_bytes(arr)
+    }
+
+    pub(crate) fn read_u32(&mut self) -> u32 {
+        let arr: [u8; 4] = self.read_arr_const();
+        u32::from_be_bytes(arr)
+    }
+
+    pub(crate) fn read_u64(&mut self) -> u64 {
+        let arr: [u8; 8] = self.read_arr_const();
+        u64::from_be_bytes(arr)
+    }
+
+    pub(crate) fn read_arr_const<const N: usize>(&mut self) -> [u8; N] {
+        let mut arr = [0u8; N];
+        for n in 0..N {
+            arr[n] = self.read_u8();
+        }
+
+        return arr;
+    }
+
+    pub(crate) fn read_arr(&mut self, n: usize) -> Vec<u8> {
+        let mut arr: Vec<u8> = vec![];
+        for _ in 0..n {
+            arr.push(self.read_u8());
+        }
+
+        arr
+    }
+
+    pub(crate) fn read_arr_from_len(&mut self) -> Vec<u8> {
+        let size = self.read_u32() as usize;
+        self.read_arr(size)
+    }
+
+    pub(crate) fn left_to_process(&self) -> usize {
+        self.vec.len() - self.offset
+    }
+}