I wish markets would get rid of this "feature". Got an encrypted message from a that when decrypted gave a message integrity error. I look closer and see it's encrypted using Hanewin.....hmmmm I google it and it's a site that allows you to autoencrypt messages using javascript.
Is there any way to tell if they use the market autoencrypt?
Edited
Who are "they?" Are you asking this as a vendor? A buyer? Are you asking if the market itself is using a 3rd party encryption service (the answer is no...there are standard, recommended, very easy to use libraries on Linux that make integrating with another service a rather pointless venture)?
Not sure what you're trying to ask here.