why doesn't charm work with user defined curves

[suneeth yadav]

How can i use user defined curves for ex: type A curve with 1024 bit, 2048 bit, 3072 bit .

By default charm provides "SS512" Type A curve it means r=159 and q=512 

For my purpose i want to en cooperate Type A curve with following properties

1. " SS1024" (r=160,q=1024)

2.  "SS2048" (r=224,q=2048)

3. "SS3072" (r=256, q=3072)

4. "SS7680" (r=384, q =7680)

[mpor...@gmail.com]

Verify how the SS512 curve is implemented (how the object is described, etc.) and then attempt to define new ones by changing the parameters that describe the curve.

[suneeth yadav]

Yes, sir, we did that, but it's not working by changing the parameters of curves.
There is a file in the charm toolbox (pairingcurves.py) where we need to add the required curve parameters.
We accessed those curves in our code by changing the curve name, but the results showed an error when we compiled the code after adding the user curves; however, it still takes SS512 as the default.
We also gave the file's path (user-defined curve parameters file) as an argument in the code and tried to access the curves defined in it, but it's still not working.