justmoon/node-bignum — pull request #7 by mikepb (2012-12-07 06:17:49+00:00)
Title: Add support for binary XOR with positive numbers

Implements XOR for positive numbers. Negative numbers are not supported because `BN_bn2bin` converts to a positive big-endian byte array and `BN_bn2mpi` are not yet available in the node version of OpenSSL.