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#include "../lib/lib.h"
#include "../lib/lib2.h"
#include "../lib/lib3.h"
#include "../lib/lib4.h"
#include "../lib/lib5.h"
int main()
{
int i;
struct rsa_key_bignum private[3];
struct rsa_key_bignum public[3];
BIGNUM *res = BN_new();
BIGNUM *encrypted[3];
BIGNUM *decrypted = BN_new();
BIGNUM *ab[3];
BIGNUM *nb[3];
BIGNUM *solution_no_mod = BN_new();
out = BIO_new(BIO_s_file());
BIO_set_fp(out, stdout, BIO_NOCLOSE);
ctx = BN_CTX_new();
printf("encrypt the following message with three different keys:\n");
unsigned char *mess = "All you need is love! Love is all you need";
printf("%s\n", mess);
for(i=0;i<2;i++) {
rsa_generate_key_bignum(&public[i], &private[i]);
do {
rsa_generate_key_bignum(&public[i+1], &private[i+1]);
} while (!BN_cmp(private[i].exponent, private[i+1].exponent));
}
printf("private keys:\n");
for(i=0;i<3;i++) {
BN_print(out, private[i].exponent);
printf("\n");
}
BIGNUM *message = BN_bin2bn(mess, strlen(mess), NULL);
printf("message as BN:\n");
BN_print(out, message);
printf("\nencrypted rsa messages:\n");
for(i=0;i<3;i++) {
encrypted[i] = BN_new();
if(!rsa_encrypt_bignum(message, encrypted[i], &public[i]))
die("could not rsa encrypt message");
BN_print(out, encrypted[i]);
printf("\n");
}
for(i=0;i<3;i++) {
ab[i] = BN_new();
nb[i] = BN_new();
BN_copy(ab[i], encrypted[i]);
BN_copy(nb[i], public[i].modulo);
}
BIGNUM *n_3 = BN_new();
BN_set_word(n_3, 3);
rsa_broadcast_cube(res, ab, nb);
printf("\nrsa broadcast cube is\n");
BN_print(out, res);
printf("\noriginal message is:\n");
BN_print(out, message);
unsigned char *__dec = malloc(1000);
BN_bn2bin(res, __dec);
printf("\ndecrypted text with rsa broadcast attack: %s\n", __dec);
}
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