Another Spark Auth issue

Hi Guys!

I’m trying to develop a little PHP page that uses Spark’s stored passwords to make the integration. Well searching on the web a found a information that spark uses 3Des encryption. Ok but, as i’m beginnig with this algorithm, i don’t know the reason to use a key and what’s the key used by spark.

Someone could help me telling me what’s the key used by spark?

ps.: another hint: i don’t know nothing of Java (someone told to me that hell was build in java, someone approves this?)

Thanks!