From 3baeb11a8fbcfcdbc31976d421f17b85503b3ecd Mon Sep 17 00:00:00 2001 From: WuKong Date: Fri, 4 Sep 2015 09:25:34 +0200 Subject: init attribute-based encryption Change-Id: Iba1a3d722110abf747a0fba366f3ebc911d25b25 --- moon-abe/pbc-0.5.14/include/pbc_a1_param.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 moon-abe/pbc-0.5.14/include/pbc_a1_param.h (limited to 'moon-abe/pbc-0.5.14/include/pbc_a1_param.h') diff --git a/moon-abe/pbc-0.5.14/include/pbc_a1_param.h b/moon-abe/pbc-0.5.14/include/pbc_a1_param.h new file mode 100644 index 00000000..74dd9b1d --- /dev/null +++ b/moon-abe/pbc-0.5.14/include/pbc_a1_param.h @@ -0,0 +1,25 @@ +// requires +// * gmp.h +// * param.h +#ifndef __PBC_A1_PARAM_H__ +#define __PBC_A1_PARAM_H__ + +struct symtab_s; +int pbc_param_init_a1(pbc_param_ptr par, struct symtab_s *tab); + +/*@manual a1param +Generate type A1 pairing parameters and store them in 'p'. The group order +will be 'n'. The order of the base field is a few bits longer. To be secure, +generic discrete log algorithms must be infeasible in groups of order 'n', and +finite field discrete log algorithms must be infeasible in finite fields of +order roughly 'n'^2^. Additionally, 'n' should be hard to factorize. + +For example: 'n' a product of two primes, each at least 512 bits. + +The file `param/a1.param` contains sample parameters for a +type A1 pairing, but it is only for benchmarking: it is useless without +the factorization of +n+, the order of the group. +*/ +void pbc_param_init_a1_gen(pbc_param_t param, mpz_t n); + +#endif //__PBC_A1_PARAM_H__ -- cgit 1.2.3-korg