init attribute-based encryption

Change-Id: Iba1a3d722110abf747a0fba366f3ebc911d25b25

1 files changed, 49 insertions, 0 deletions

diff --git a/moon-abe/pbc-0.5.14/include/pbc_mnt.h b/moon-abe/pbc-0.5.14/include/pbc_mnt.h
new file mode 100644
index 00000000..82e4993b
--- /dev/null
+++ b/moon-abe/pbc-0.5.14/include/pbc_mnt.h
@@ -0,0 +1,49 @@
+//requires
+// * gmp.h
+#ifndef __PBC_MNT_H__
+#define __PBC_MNT_H__
+
+struct pbc_cm_s {
+  mpz_t q; //curve defined over F_q
+  mpz_t n; //has order n (= q - t + 1) in F_q (and r^2 in F_q^k)
+  mpz_t h; //h * r = n, r is prime
+  mpz_t r;
+  int D; //discrminant needed to find j-invariant
+  int k; //embedding degree
+};
+
+typedef struct pbc_cm_s *pbc_cm_ptr;
+typedef struct pbc_cm_s pbc_cm_t[1];
+
+/*@manual cminfo
+Initializes 'cm'.
+*/
+void pbc_cm_init(pbc_cm_t cm);
+/*@manual cminfo
+Clears 'cm'.
+*/
+void pbc_cm_clear(pbc_cm_t cm);
+
+/*@manual cminfo
+For a given discriminant D, searches for type D pairings suitable for
+cryptography (MNT curves of embedding degree 6).
+The group order is at most 'bitlimit' bits. For each set of CM parameters
+found, call 'callback' with +pbc_cm_t+ and given +void *+. If the callback
+returns nonzero, stops search and returns that value.
+Otherwise returns 0.
+*/
+int pbc_cm_search_d(int (*callback)(pbc_cm_ptr, void *), void *data,
+  unsigned int D, unsigned int bitlimit);
+
+/*@manual cminfo
+For a given discriminant D, searches for type G pairings suitable for
+cryptography (Freeman curve).
+The group order is at most 'bitlimit' bits. For each set of CM parameters
+found, call 'callback' with +pbc_cm_t+ and given +void *+. If the callback
+returns nonzero, stops search and returns that value.
+Otherwise returns 0.
+*/
+int pbc_cm_search_g(int (*callback)(pbc_cm_ptr, void *), void *data,
+  unsigned int D, unsigned int bitlimit);
+
+#endif //__PBC_MNT_H__