Attention: Here be dragons

This is the latest (unstable) version of this documentation, which may document features not available in or compatible with released stable versions of Godot.

Checking the stable version of the documentation...

HMACContext¶

Inherits: RefCounted < Object

Used to create an HMAC for a message using a key.

Description¶

The HMACContext class is useful for advanced HMAC use cases, such as streaming the message as it supports creating the message over time rather than providing it all at once.

extends Node
var ctx = HMACContext.new()

func _ready():
    var key = "supersecret".to_utf8_buffer()
    var err = ctx.start(HashingContext.HASH_SHA256, key)
    assert(err == OK)
    var msg1 = "this is ".to_utf8_buffer()
    var msg2 = "super duper secret".to_utf8_buffer()
    err = ctx.update(msg1)
    assert(err == OK)
    err = ctx.update(msg2)
    assert(err == OK)
    var hmac = ctx.finish()
    print(hmac.hex_encode())

using Godot;
using System.Diagnostics;

public partial class MyNode : Node
{
    private HmacContext _ctx = new HmacContext();

    public override void _Ready()
    {
        byte[] key = "supersecret".ToUtf8Buffer();
        Error err = _ctx.Start(HashingContext.HashType.Sha256, key);
        Debug.Assert(err == Error.Ok);
        byte[] msg1 = "this is ".ToUtf8Buffer();
        byte[] msg2 = "super duper secret".ToUtf8Buffer();
        err = _ctx.Update(msg1);
        Debug.Assert(err == Error.Ok);
        err = _ctx.Update(msg2<