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Diffstat (limited to 'moon-abe/pbc-0.5.14/example/zss.c')
-rw-r--r-- | moon-abe/pbc-0.5.14/example/zss.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/moon-abe/pbc-0.5.14/example/zss.c b/moon-abe/pbc-0.5.14/example/zss.c deleted file mode 100644 index 5020a3a6..00000000 --- a/moon-abe/pbc-0.5.14/example/zss.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - ZSS Short Signature Scheme from Bilinear Pairing. - Based on papers "F. Zhang, R. Safavi-Naini and W. Susilo. An Efficient Signature Scheme from Bilinear Pairings and it's Applications. PKC 2004". - Contributed by Dmitry Kosolapov. -*/ - -#include <pbc.h> -#include <pbc_test.h> - -int main(int argc, char **argv) { - pairing_t pairing; - pbc_demo_pairing_init(pairing, argc, argv); - if (!pairing_is_symmetric(pairing)) pbc_die("pairing must be symmetric"); - double time1, time2; - element_t P, Ppub, x, S, H, t1, t2, t3, t4; - element_init_Zr(x, pairing); - element_init_Zr(H, pairing); - element_init_Zr(t1, pairing); - - element_init_G1(S, pairing); - element_init_G1(P, pairing); - element_init_G1(Ppub, pairing); - element_init_G1(t2, pairing); - - element_init_GT(t3, pairing); - element_init_GT(t4, pairing); - - printf("ZSS short signature schema\n"); - printf("KEYGEN\n"); - time1 = pbc_get_time(); - element_random(x); - element_random(P); - element_mul_zn(Ppub, P, x); - element_printf("P = %B\n", P); - element_printf("x = %B\n", x); - element_printf("Ppub = %B\n", Ppub); - - printf("SIGN\n"); - element_from_hash(H, "Message", 7); - element_add(t1, H, x); - element_invert(t1, t1); - element_mul_zn(S, P, t1); - printf("Signature of message \"Message\" is:\n"); - element_printf("S = %B\n", S); - - printf("VERIFY\n"); - element_from_hash(H, "Message", 7); - element_mul_zn(t2, P, H); - element_add(t2, t2, Ppub); - element_pairing(t3, t2, S); - element_pairing(t4, P, P); - element_printf("e(H(m)P + Ppub, S) = %B\n", t3); - element_printf("e(P, P) = %B\n", t4); - if (!element_cmp(t3, t4)) printf("Signature is valid\n"); - else printf("Signature is invalid\n"); - time2 = pbc_get_time(); - printf("All time = %fs\n", time2 - time1); - element_clear(P); - element_clear(Ppub); - element_clear(x); - element_clear(S); - element_clear(H); - element_clear(t1); - element_clear(t2); - element_clear(t3); - element_clear(t4); - pairing_clear(pairing); - - return 0; -} |