crypt.hmac

Computes a Hash-based Message Authentication Code (HMAC) for the given data payload using a key and algorithm.

crypt.hmac(data: string, key: string, algorithm: string): string

Parameters

Parameter	Type	Description
data	string	The data message payload to sign.
key	string	The secret key.
algorithm	string	The hashing algorithm to use (e.g. 'sha256').

Returns

string - The resulting HMAC signature as a hex string.

Example

Example 1

local signature = crypt.hmac("payload", "secret_key", "sha256")
print("Signature: ", signature)

Used to verify both data integrity and authenticity of communication payloads.