These polynomials are correct in modulus, but I would like to have positive coefficients everywhere, as later on in the algorithm there is some centerlifting involved, so I need to have positive coefficients. Now, I want to find the inverse polynomial of f_poly in the convolution polynomial ring Rp = (Z/pZ)/(x^N - 1)(Z/pZ) (similarly for q). In this code, f_poly is a polynomial with degree at most 6 (its degree is at most N-1), whose coefficients come from the list f (the first entry in f is the coefficient on the highest power of x, continuing in descending order). When I attempt to find a polynomial's inverse modulo p (in this example p = 3), SymPy always returns negative coefficients, when I want strictly positive coefficients. I am trying to code this in pure Python, purely as a hobby. So, take note of your most commonly used tools and make them part of your own custom user interface.I took a cryptography course this semester in graduate school, and once of the topics we covered was NTRU. Remember, if at any time you want to revert back to the default UI, just click Reset in the Custom User Interface dialog box. Keyboard Shortcuts and Quad Menus are a great way to customize your UI to allow you to work faster inside 3ds Max. To get the tool to work, you must have an Editable Poly object selected in your scene. ![]() You’ll notice your new Quad menu pops up with the PolyTool label and the Swift Loop tool under it. ![]()
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