void shift(int value) {
if (value) {
shiftH();
} else {
shiftL();
}
}
int main() {
FILE *stream = fopen("testdata", "r");
printf("0 to 16 in hex: ");
bigint num[0x11];
for (int i = 0; i < 0x11; i++) {
readBigint(stream, &num[i]);
writeBigint(stdout, num[i]);
printf(" ");
}
printf("\n");
printf("\nThe following two lines should be identical:\n");
printf("1 2 4 8 10 20 40 80 100 200 2000 800000000 1 0\n");
int shifts[11] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 22};
int totalShift = 0;
bigint tmp;
assign(num[1], &tmp);
writeBigint(stdout, tmp);
printf(" ");
fflush(stdout);
for (int i = 0; i < 11; i++) {
shiftL(tmp, shifts[i], &tmp);
writeBigint(stdout, tmp);
printf(" ");
fflush(stdout);
totalShift += shifts[i];
}
shiftR(tmp, totalShift, &tmp);
writeBigint(stdout, tmp);
printf(" ");
shiftR(tmp, 1, &tmp);
writeBigint(stdout, tmp);
printf("\n");
bigint meaningOfLifeTheUniverseAndEverything;
readBigint(stream, &meaningOfLifeTheUniverseAndEverything);
modMult(num[6], num[7], meaningOfLifeTheUniverseAndEverything, &tmp);
printBigint("\nsimple test: 6 * 7 % 42 = ", tmp);
modMult(num[6], num[9], meaningOfLifeTheUniverseAndEverything, &tmp);
printBigint("\nsimple test: 6 * 9 % 42 = ", tmp);
modMult(num[2], num[3], num[5], &tmp);
printBigint("\nsimple test: 2 * 3 % 5 = ", tmp);
modExpt(num[5], num[3], meaningOfLifeTheUniverseAndEverything, &tmp);
printBigint("\nsimple test: 5 ^ 3 % 42 = ", tmp);
bigint n, e, d, p, q, u;
readBigint(stream, &n);
readBigint(stream, &e);
readBigint(stream, &d);
readBigint(stream, &p);
readBigint(stream, &q);
readBigint(stream, &u);
printf("\nequal() test: ");
if (!equal(meaningOfLifeTheUniverseAndEverything, num[5]) &&
equal(num[7], num[7]) &&
equal(n, n) &&
!equal(p, q)) {
printf("PASS\n");
} else {
printf("FAIL\n");
}
bigint maxBI, pq;
bigintMax(&maxBI);
printf("\nmaxBI = ");
writeBigint(stdout, maxBI);
printf("\n\nHere is an RSA private key:");
printf("\n\nn = ");
writeBigint(stdout, n);
printf("\n\ne = ");
writeBigint(stdout, e);
printf("\n\nd = ");
writeBigint(stdout, d);
printf("\n\np = ");
writeBigint(stdout, p);
printf("\n\nq = ");
writeBigint(stdout, q);
printf("\n\nu = ");
writeBigint(stdout, u);
printf("\n\n");
modMult(p, q, maxBI, &pq);
printf("\n\np * q mod maxBI = ");
writeBigint(stdout, pq);
printf("\n\nThe following statement should be true: ");
printf("\nn == p * q mod maxBI");
printf("\nis it? ");
if (equal(n, pq)) {
printf("PASS\n");
} else {
printf("FAIL\n");
printf("\nn = ");
writeBigint(stdout, n);
printf("\npq = ");
writeBigint(stdout, pq);
}
printf("\n\nSHITS AND GIGGLES:\n");
bigint m, c, m2;
readBigint(stream, &m);
printf("\nm = ");
writeBigint(stdout, m);
printf("\n\n");
modExpt(m, e, n, &c);
printf("\n\nm ^ e mod n = c = ");
writeBigint(stdout, c);
printf("\n\n");
modExpt(c, d, n, &m2);
printf("\n\nc ^ d mod n = m = ");
writeBigint(stdout, m2);
printf("\n\nIs the plaintext equal to the deciphered ciphertext? ");
if (equal(m,m2)) {
printf("PASS\n");
} else {
printf("FAIL\n");
printf("\nm = ");
writeBigint(stdout, m);
printf("\nm2 = ");
writeBigint(stdout, m2);
}
/*printf("\nAri's silly test\n");
bigint a =num[3], b = num[8], c=num[7];
printf("input operands: ");
writeBigint(stdout,a); printf("\t");
writeBigint(stdout,b); printf("\t");
writeBigint(stdout,c); printf("\n\n");
modMultMagic(a,b, c,&tmp);
printf("\n\nresult: \t");
writeBigint(stdout, tmp);
printf("\n");
*/
}