Build and install libbswabe keg for cpabe

libbswabe is a library implementing core crypto operations for
ciphertext-policy attribute-based encryption. Installs as a keg only as
it conflicts with libbswabe for PIRATTE.
Build and install CPABE

Ciphertext-policy attributed-based encryption tools build on
libbswabe-cpabe.
Build and install libbswabe keg for piratte

libbswabe is a library implementing core crypto operations for
proxy-based intermediate revocation or attribute-based encryption.
Installs as a keg only as it conflicts with libbswabe for CPABE.
Build and install PIRATTE

Proxy-based intermediate revocation or attribute-based encryption tools
built on libbswabe-piratte.
Build and install MPIR

Multiple precision integers and rationals library provides arbitrary
precision arithmetic on integers, rational and floating-point numbers.
Build and install flint 2.x

Fast library for number theory.
Build and install fling 1.x

Fast library for number theory. Builds as a keg only as it conflicts
with the newer FLINT 2.x formula.
Build and install libpaillier

libpaillier is a library implementing core crypto operations for the
Paillier public key cryptosystem. This system somewhat homomorphic under
addition.
Buid and install libscarab

libscarab implements a fully homomorphic encryption scheme using large
integers.