Function hmac_sha256

pub fn hmac_sha256(key: &[u8], data: &[u8]) -> Result<[u8; 32], Error>

Computes an HMAC-SHA256 signature for the provided key and data.

This function generates an HMAC (Hash-based Message Authentication Code) using the SHA-256 hashing algorithm. The key and data are processed, and the resulting 256-bit (32-byte) signature is returned.

Parameters

• key: A byte slice representing the secret key used for the HMAC computation.
• data: A byte slice containing the data to be authenticated.

Returns

• [u8; 32]: A 32-byte array containing the HMAC-SHA256 signature.
• Err(error::Error): An error if there is a failure during the HMAC computation (e.g., key or data issues, cryptographic errors).

Example

use amebazii::util::hmac_sha256;

let key = b"secret";
let data = b"message";
let signature = hmac_sha256(key, data).unwrap();
assert_eq!(signature.len(), 32); // The HMAC-SHA256 signature should be 32 bytes.

Errors

This function may return an error if any step in the HMAC-SHA256 computation fails.