ret = 1; \
} while (0)
#define bn_modexp(bn, y, q, p) mpz_powm(bn, y, q, p)
-#define bn_random(bn, num_bits) \
- do { \
- gmp_randstate_t rs; \
- gmp_randinit_mt(rs); \
- gmp_randseed_ui(rs, av_get_random_seed()); \
- mpz_urandomb(bn, rs, num_bits); \
- gmp_randclear(rs); \
+#define bn_random(bn, num_bits) \
+ do { \
+ int bits = num_bits; \
+ mpz_set_ui(bn, 0); \
+ for (bits = num_bits; bits > 0; bits -= 32) { \
+ mpz_mul_2exp(bn, bn, 32); \
+ mpz_add_ui(bn, bn, av_get_random_seed()); \
+ } \
+ mpz_fdiv_r_2exp(bn, bn, num_bits); \
} while (0)
#elif CONFIG_GCRYPT
#define bn_new(bn) bn = gcry_mpi_new(1)