MAC = sha1(code of 35 characters + your data)<br/>
The "base MAC", without any appended data: 6137f2b8396ccef953d1b6e9aacdee2ec68100ee
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<b>Validate a MAC</b>
<form>
	Data to validate the MAC for: <input name="data"><br/>
	The Message Authentication Code: <input name="mac"><br/>
	<input type="submit" value="Validate">
</form>