BigInteger that takes advantage of the jbigi library for the modPow operation, which accounts for a massive segment of the processing cost of asymmetric crypto. It also takes advantage of the jbigi library for converting a BigInteger value to a double. Sun's implementation of the 'doubleValue()' method is _very_ lousy. The jbigi library itself is basically just a JNI wrapper around the GMP library - a collection of insanely efficient routines for dealing with big numbers.
Created attachment 165743 [details] nativebiginteger-0.6.2.ebuild Already in sunrise overlay: https://overlays.gentoo.org/proj/sunrise/browser/reviewed/net-libs/nativebiginteger