Macro Handler

Macro Handler

Android Automation Platform

Object MethodLicense and Security

Crypto.hmacSha256(key, data)

Returns the HMAC-SHA256 signature of the data under the key as hex.

Documented for app version 1.0.51Updated:

Detailed Explanation

This section explains when to use the API, how to call it, and which structures it works best with in production flow.

How To Call It

Crypto is a global table: call its functions with a dot (Crypto.<method>(...)), not a colon.

When To Use It

In security and licensing flow, re-check the result at critical checkpoints instead of trusting a single early validation.

Parameters and Return

Required: key, data. Returns a string.

Best Combined With

When paired with License and Runtime/System checks, it gives you stronger premium, trial, and security decisions.

Example Usage

The snippet below is a starter pattern that can be applied directly in runtime flow.

lua
Try in Editor →
local result = Crypto.hmacSha256("shared-secret", "payload")

Copyable Progressive Examples

From foundation to combined usage, each level is provided as a separate code block so you can copy the level you need and adapt it directly.

Foundation

Shows the shortest direct way to call the API.

Foundation
lua
Try in Editor →
local result = Crypto.hmacSha256("shared-secret", "payload")

Simple

Wraps the base call with minimal flow control.

Simple
lua
Try in Editor →
local stepOk = true
local result = Crypto.hmacSha256("shared-secret", "payload")
if stepOk then
  wait(200)
end

Practical Flow

A practical pattern for real macros with pcall, logging, and guards.

Practical Flow
lua
Try in Editor →
local ok, err = pcall(function()
  local result = Crypto.hmacSha256("shared-secret", "payload")
end)

if not ok then
  print("API step failed: Crypto.hmacSha256: " .. tostring(err))
  requestStop()
end

Detailed

This level packages the API into a reusable helper with error reporting.

Detailed
lua
Try in Editor →
-- In security and licensing flow, re-check the result at critical checkpoints instead of trusting a single early validation.
local function run_hmacsha256_step()
  local result = Crypto.hmacSha256("shared-secret", "payload")
end

local ok, err = pcall(run_hmacsha256_step)
if not ok then
  toast("Step failed")
  print(err)
end

Combined

Combines the API with related structures to form a more realistic workflow.

Combined
lua
Try in Editor →
local result = Crypto.hmacSha256("shared-secret", "payload")
wait(200)
print("Combined with logging and flow control")