.

docs/docs/noir/standard_library/cryptographic_primitives/hashes.mdx

@@ -1,32 +1,19 @@
 ---
 title: Hash methods
 description:
-  Learn about the cryptographic primitives ready to use for any Noir project, including sha256,
-  blake2s and pedersen
+  Learn about the cryptographic primitives ready to use for any Noir project
 keywords:
   [cryptographic primitives, Noir project, sha256, blake2s, pedersen, hash]
 sidebar_position: 0
 ---
 
 import BlackBoxInfo from '@site/src/components/Notes/_blackbox';
 
-## sha256
+## sha256 compression
 
-Given an array of bytes, returns the resulting sha256 hash.
-Specify a message_size to hash only the first `message_size` bytes of the input.
-
-#include_code sha256 noir_stdlib/src/hash/sha256.nr rust
-
-example:
-#include_code sha256_var test_programs/execution_success/sha256/src/main.nr rust
-
-```rust
-fn main() {
-    let x = [163, 117, 178, 149]; // some random bytes
-    let hash = std::sha256::sha256_var(x, 4);
-}
-```
+Performs a sha256 compression on an input and initial state, returning the resulting state.
 
+#include_code sha256_compression noir_stdlib/src/hash/sha256.nr rust
 
 <BlackBoxInfo to="../black_box_fns"/>
 

noir_stdlib/src/hash/mod.nr

@@ -10,7 +10,9 @@ use crate::uint128::U128;
 
 pub mod sha256 {
     #[foreign(sha256_compression)]
+    // docs:start:sha256_compression
     pub fn sha256_compression(input: [u32; 16], state: [u32; 8]) -> [u32; 8] {}
+    // docs:end:sha256_compression
 }
 
 pub mod keccak256 {