Anyone? I am sitting here waiting for a reply for the last three years 
How about finding a way to call C functions from Perl, I'm not familiar with Perl so here is a link: https://stackoverflow.com/questions/4048557/calling-c-function-from-perl-within-embedded-c-applicationThen you can use the library that bitcoin core uses known as libsec256k1: https://github.com/bitcoin-core/secp256k1
That way you don't have to worry about the library not being complete or having any bugs.