Hello Peter, Friday, August 11, 2006, 4:00:40 AM, you wrote:
OpenSSL's BN library is primarily tuned to support cryptography, particularly the generation of very large primes for public key cryptosystems. It is possible to separate the BN library out (I am having some success there already). It is also possible to use the library separately from Haskell using ForeignPtr; essentially doing everything through Haskell's FFI. I have honestly not benchmarked a FFI-ForeignPtr interface against the current internal-GMP implementation, partly because the overhead required to use ForeignPtr and the availability of garbage-collected memory for GMP indicate that an internal GHC Bignum library would clearly be faster.
why you say that ForeignPtr is slow? afaik, malloc/free is slow, but starting from ghc 6.6 speed of _using_ ForeignPtr is the same as for Ptr -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com