When will the PyPoly be available?

[EchizenG]

Hi,

Thank you for your great work! I was trying to use PyPoly in Pyfhel because I saw it in document and SEAL library. However, most of the PyPoly code is "Not Implement". I open this issue just want to know when can it be avaiable? Thank you again!

[AlexanderViand]

PyPoly is already available and should work as-is, for example, it's used in Demo_WAHC21 to demonstrate a simple key-recovery attack. The only thing that isn't implemented for PyPoly are the serialization functions, which might be the
"NotImplemented" you saw. There's also a few AfPoly functions in the Afseal backend that simply aren't supported by SEAL.

If you have a specific use case for PyPoly that isn't currently supported, please let us know! However, with SEAL no longer being actively developed, I'm not sure it'd be worth the effort to add new features to Afseal.

[EchizenG]

I followed the Demo_WAHC21 to implement poly_from_ciphertext and got RuntimeError: <Afseal>: Not yet implemented.
I tried to create PyPoly from ciphertext using PyPoly(ref=ciphertext) and got RuntimeError: <Afseal>: Not yet implemented., too.
Both of them are pointing to PyPoly.pyx line 34.

You may check the code there. It looks like the new AfsealPoly(deref(<Afseal*>ref._pyfhel.afseal), deref(_dyn_c(ref._ptr_ctxt)), <size_t>index) is not implemented yet.

[AlexanderViand]

Can you post a minimal reproducing file? I've had some issues getting Pyfhel installed again (as evidenced by other issues on the repo) but once I had it installed, the WAHC21 demo ran just fine?

[EchizenG]

You may just try WAHC21 demo. I tried with it and showed above issue.

[AlexanderViand]

As mentioned in my earlier comment, I can’t reproduce the error messages you’re seeing - the WACH21 demo seems to run fine? Please confirm the bug still appears for you and if it still does, post the specific steps you took, including any code you might have written, as well as information on your setup (operating system, python version, version of Pyfhel you’re using, etc).