diff --git a/docs/docs/dev_docs/contracts/portals/main.md b/docs/docs/dev_docs/contracts/portals/main.md
index e1450b98140..ac1a5ec8ed6 100644
--- a/docs/docs/dev_docs/contracts/portals/main.md
+++ b/docs/docs/dev_docs/contracts/portals/main.md
@@ -50,7 +50,8 @@ Computing the `content` must be done manually in its current form, as we are sti
 :::info
 The `content_hash` is a sha256 truncated to a field element (~ 254 bits). In Aztec-nr, you can use our `sha256_to_field()` to do a sha256 hash which fits in one field element:
 
-#include_code mint_public_content_hash_nr /yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/util.nr rust
+#include_code mint_public_content_hash_nr /yarn-project/noir-contracts/src/contracts/token_portal_content_hash_lib/src/lib.nr rust
+
 
 In solidity, you can use our `Hash.sha256ToField()` method:
 
diff --git a/yarn-project/noir-contracts/src/contracts/test_contract/Nargo.toml b/yarn-project/noir-contracts/src/contracts/test_contract/Nargo.toml
index c4818f6ba32..afa5e911ac9 100644
--- a/yarn-project/noir-contracts/src/contracts/test_contract/Nargo.toml
+++ b/yarn-project/noir-contracts/src/contracts/test_contract/Nargo.toml
@@ -6,3 +6,4 @@ type = "contract"
 
 [dependencies]
 aztec = { path = "../../../../aztec-nr/aztec" }
+token_portal_content_hash_lib = { path = "../token_portal_content_hash_lib" }
diff --git a/yarn-project/noir-contracts/src/contracts/test_contract/src/main.nr b/yarn-project/noir-contracts/src/contracts/test_contract/src/main.nr
index fd163e64771..76f4fd922b0 100644
--- a/yarn-project/noir-contracts/src/contracts/test_contract/src/main.nr
+++ b/yarn-project/noir-contracts/src/contracts/test_contract/src/main.nr
@@ -1,5 +1,3 @@
-mod utils;
-
 // A contract used for testing a random hodgepodge of small features from simulator and end-to-end tests.
 contract Test {
     use dep::aztec::{
@@ -15,7 +13,7 @@ contract Test {
         types::vec::BoundedVec,
         constants_gen::EMPTY_NULLIFIED_COMMITMENT,
     };
-    use crate::utils::{get_mint_private_content_hash, get_mint_public_content_hash};
+    use dep::token_portal_content_hash_lib::{get_mint_private_content_hash, get_mint_public_content_hash};
 
     #[event]
     struct ExampleEvent {
diff --git a/yarn-project/noir-contracts/src/contracts/test_contract/src/utils.nr b/yarn-project/noir-contracts/src/contracts/test_contract/src/utils.nr
deleted file mode 100644
index d3200fc2117..00000000000
--- a/yarn-project/noir-contracts/src/contracts/test_contract/src/utils.nr
+++ /dev/null
@@ -1,50 +0,0 @@
-use dep::aztec::hash::{sha256_to_field};
-
-// Computes a content hash of a deposit/mint_public message.
-// Refer TokenPortal.sol for reference on L1.
-pub fn get_mint_public_content_hash(amount: Field, owner_address: Field, canceller: Field) -> Field {
-    
-    let mut hash_bytes: [u8; 100] = [0; 100];
-    let amount_bytes = amount.to_be_bytes(32);
-    let recipient_bytes = owner_address.to_be_bytes(32);
-    let canceller_bytes = canceller.to_be_bytes(32);
-
-    for i in 0..32 {
-        hash_bytes[i + 4] = amount_bytes[i];
-        hash_bytes[i + 36] = recipient_bytes[i];
-        hash_bytes[i + 68] = canceller_bytes[i];
-    }
-
-    // Function selector: 0x63c9440d keccak256('mint_public(uint256,bytes32,address)')
-    hash_bytes[0] = 0x63;
-    hash_bytes[1] = 0xc9;
-    hash_bytes[2] = 0x44;
-    hash_bytes[3] = 0x0d;
-
-    let content_hash = sha256_to_field(hash_bytes);
-    content_hash
-}
-
-// Computes a content hash of a deposit/mint_private message.
-// Refer TokenPortal.sol for reference on L1.
-pub fn get_mint_private_content_hash(amount: Field, secret_hash_for_redeeming_minted_notes: Field, canceller: Field) -> Field {
-    let mut hash_bytes: [u8; 100] = [0; 100];
-    let amount_bytes = amount.to_be_bytes(32);
-    let secret_hash_bytes = secret_hash_for_redeeming_minted_notes.to_be_bytes(32);
-    let canceller_bytes = canceller.to_be_bytes(32);
-
-    for i in 0..32 {
-        hash_bytes[i + 4] = amount_bytes[i];
-        hash_bytes[i + 36] = secret_hash_bytes[i];
-        hash_bytes[i + 68] = canceller_bytes[i];
-    }
-
-    // Function selector: 0x25d46b0f keccak256('mint_private(uint256,bytes32,address)')
-    hash_bytes[0] = 0x25;
-    hash_bytes[1] = 0xd4;
-    hash_bytes[2] = 0x6b;
-    hash_bytes[3] = 0x0f;
-
-    let content_hash = sha256_to_field(hash_bytes);
-    content_hash
-}
diff --git a/yarn-project/noir-contracts/src/contracts/token_bridge_contract/Nargo.toml b/yarn-project/noir-contracts/src/contracts/token_bridge_contract/Nargo.toml
index cdad0512395..2dd5853eae1 100644
--- a/yarn-project/noir-contracts/src/contracts/token_bridge_contract/Nargo.toml
+++ b/yarn-project/noir-contracts/src/contracts/token_bridge_contract/Nargo.toml
@@ -5,4 +5,5 @@ compiler_version = "0.1"
 type = "contract"
 
 [dependencies]
-aztec = { path = "../../../../aztec-nr/aztec" }
\ No newline at end of file
+aztec = { path = "../../../../aztec-nr/aztec" }
+token_portal_content_hash_lib = { path = "../token_portal_content_hash_lib" }
\ No newline at end of file
diff --git a/yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/main.nr b/yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/main.nr
index 93dd19149a3..dad2866cdc9 100644
--- a/yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/main.nr
+++ b/yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/main.nr
@@ -1,4 +1,3 @@
-mod util;
 mod token_interface;
 
 // Minimal implementation of the token bridge that can move funds between L1 <> L2.
@@ -17,9 +16,9 @@ contract TokenBridge {
         types::address::{AztecAddress, EthereumAddress},
         selector::compute_selector,
     };
+    use dep::token_portal_content_hash_lib::{get_mint_public_content_hash, get_mint_private_content_hash, get_withdraw_content_hash};
 
     use crate::token_interface::Token;
-    use crate::util::{get_mint_public_content_hash, get_mint_private_content_hash, get_withdraw_content_hash};
 
     // Storage structure, containing all storage, and specifying what slots they use.
     struct Storage {
diff --git a/yarn-project/noir-contracts/src/contracts/token_portal_content_hash_lib/Nargo.toml b/yarn-project/noir-contracts/src/contracts/token_portal_content_hash_lib/Nargo.toml
new file mode 100644
index 00000000000..f3dfa0e4f2a
--- /dev/null
+++ b/yarn-project/noir-contracts/src/contracts/token_portal_content_hash_lib/Nargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "token_portal_content_hash_lib"
+authors = ["aztec-labs"]
+compiler_version = "0.1"
+type = "lib"
+
+[dependencies]
+aztec = { path = "../../../../aztec-nr/aztec" }
\ No newline at end of file
diff --git a/yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/util.nr b/yarn-project/noir-contracts/src/contracts/token_portal_content_hash_lib/src/lib.nr
similarity index 100%
rename from yarn-project/noir-contracts/src/contracts/token_bridge_contract/src/util.nr
rename to yarn-project/noir-contracts/src/contracts/token_portal_content_hash_lib/src/lib.nr