homebrew-core/Formula/pbc.rb

61 lines
2.2 KiB
Ruby

class Pbc < Formula
desc "Pairing-based cryptography"
homepage "https://crypto.stanford.edu/pbc/"
url "https://crypto.stanford.edu/pbc/files/pbc-0.5.14.tar.gz"
sha256 "772527404117587560080241cedaf441e5cac3269009cdde4c588a1dce4c23d2"
head "http://repo.or.cz/r/pbc.git"
bottle do
cellar :any
sha256 "9ec971f355f67d0faf644e955a26e9a86b667066eac0791288b802bbe7c0f4aa" => :sierra
sha256 "5295bb2d5b2698685ff7ff8b64e0578a5b8c9b9f9602fc51583cae058ee24b81" => :el_capitan
sha256 "5ec07e1b5752aa02b6a479665ca8a57b85ed55d5cd3b05a34cf403d7b47ea142" => :yosemite
sha256 "3be60cf755e2d568867c2d5c53a46774627afe1fe7439b7f86437e718ba52ed8" => :mavericks
sha256 "f9f7455441a38df308bd433f1a13a208ef65a2081a1884f45156f3b63072c832" => :mountain_lion
end
depends_on "gmp"
def install
system "./configure", "--disable-dependency-tracking",
"--prefix=#{prefix}"
system "make", "install"
end
test do
(testpath/"test.c").write <<-EOS.undent
#include <pbc/pbc.h>
#include <assert.h>
int main()
{
pbc_param_t param;
pairing_t pairing;
element_t g1, g2, gt1, gt2, gt3, a, g1a;
pbc_param_init_a_gen(param, 160, 512);
pairing_init_pbc_param(pairing, param);
element_init_G1(g1, pairing);
element_init_G2(g2, pairing);
element_init_G1(g1a, pairing);
element_init_GT(gt1, pairing);
element_init_GT(gt2, pairing);
element_init_GT(gt3, pairing);
element_init_Zr(a, pairing);
element_random(g1); element_random(g2); element_random(a);
element_pairing(gt1, g1, g2); // gt1 = e(g1, g2)
element_pow_zn(g1a, g1, a); // g1a = g1^a
element_pow_zn(gt2, gt1, a); // gt2 = gt1^a = e(g1, g2)^a
element_pairing(gt3, g1a, g2); // gt3 = e(g1a, g2) = e(g1^a, g2)
assert(element_cmp(gt2, gt3) == 0); // assert gt2 == gt3
pairing_clear(pairing);
element_clear(g1); element_clear(g2); element_clear(gt1);
element_clear(gt2); element_clear(gt3); element_clear(a);
element_clear(g1a);
return 0;
}
EOS
system ENV.cc, "test.c", "-lgmp", "-lpbc", "-o", "test"
system "./test"
end
end