At least according to the Tehran Times.
In related news, I am now dating Janice Joplin.
This is obviously not true.
However, it is entirely possible that Iran might be working on some stealth projects.
The basic science for computing radar cross sections has been known for years, the math was published in a Soviet mathematics journal in the 1960s, and if a Linux cluster can do Shreck, it can certainly work on that.
To do an operationally meaningful low radar cross section manned aircraft is very expensive, and at this point, they are reverse-engineering their 1960s vintage F-5 aircraft.
However, if you wanted to create a drone, or a missile with a low RCS in the forward hemisphere, that would sound to me quite doable, with the caveat that I have never worked on issues of radar cross section.