- replace void * with BIGNUM * where applicable
- fixes#1622
- replace 0 with None when using a NULL pointer as parameter
- maybe needs more work in how the data is accessed
- EC_POINT struct is now defined but isn't used yet
Closes: #1707
- add blind signature functionality to pyelliptic as described in #1409
- add tests for blind signatures
- PEP8 fixes for pyelliptic
- some minor refactoring is necessary for further integration, this is just a
minimal implementation to pass a test