init attribute-based encryption

Change-Id: Iba1a3d722110abf747a0fba366f3ebc911d25b25

1 files changed, 29 insertions, 0 deletions

diff --git a/moon-abe/pbc-0.5.14/guru/testindexcalculus.c b/moon-abe/pbc-0.5.14/guru/testindexcalculus.c
new file mode 100644
index 00000000..1bb36146
--- /dev/null
+++ b/moon-abe/pbc-0.5.14/guru/testindexcalculus.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <gmp.h>
+#include "pbc.h"
+
+int main(int argc, char **argv)
+{
+    mpz_t x;
+    mpz_t g, h, q;
+    mpz_init(x);
+    mpz_init(g);
+    mpz_init(h);
+    mpz_init(q);
+    int bits = 40;
+
+    if (argc == 2) {
+        bits = atoi(argv[1]);
+    }
+    mpz_setbit(q, bits);
+    pbc_mpz_random(q, q);
+    mpz_nextprime(q, q);
+    pbc_mpz_random(g, q);
+    pbc_mpz_random(h, q);
+    mpz_powm(h, g, h, q);
+
+    element_dlog_index_calculus(x, g, h, q);
+    element_printf("%Zd^%Zd %% %Zd = %Zd\n", g, x, q, h);
+
+    return 0;
+}