> ## Documentation Index
> Fetch the complete documentation index at: https://docs.starknet.io/llms.txt
> Use this file to discover all available pages before exploring further.

# core::sha256::compute_sha256_u32_array

Computes the SHA-256 hash of an array of 32-bit words.

## Signature

```rust theme={null}
pub fn compute_sha256_u32_array(
    mut input: Array, last_input_word: u32, last_input_num_bytes: u32,
) -> [u32; 8]
```

#### Arguments

* `input` - An array of `u32` values to hash
* `last_input_word` - The final word when input is not word-aligned
* `last_input_num_bytes` - Number of bytes in the last input word (must be less than 4)

#### Returns

* The SHA-256 hash of the `input array` + `last_input_word` as big endian

## Examples

```rust theme={null}
use core::sha256::compute_sha256_u32_array;

let hash = compute_sha256_u32_array(array![0x68656c6c], 0x6f, 1);
assert!(hash == [0x2cf24dba, 0x5fb0a30e, 0x26e83b2a, 0xc5b9e29e, 0x1b161e5c, 0x1fa7425e,
0x73043362, 0x938b9824]);
```