int main() {
unsigned int input;
unsigned int bit_length;
unsigned int rng_ceil;
unsigned int key_size;
mpz_t key;
unsigned int bits;
char generate_keys = 'y';
while(is_power_of_two(rng_ceil = get_rng_ceil()) == 0) {
puts("Sorry, I can only use powers of 2!");
}
bit_length = get_bit_length(rng_ceil);
while (generate_keys == 'y' || generate_keys == 'Y') {
bits = 0;
mpz_init(key);
key_size = get_key_size();
while (bits < key_size) {
bits += bit_length;
if (bits > key_size) {
mpz_mul_ui(key, key, (int) pow(2, key_size % bit_length));
mpz_add_ui(key, key, ((get_rng_input(rng_ceil)-1) & ((int) pow(2, (key_size % bit_length)+1)-1)));
bits = key_size;
} else {
mpz_mul_ui(key, key, (int) pow(2, bit_length));
mpz_add_ui(key, key, (get_rng_input(rng_ceil)-1));
}
printf("%d of %d bits generated...\n", bits, key_size);
}
printf("Your key is:\n0x");
mpz_out_str(stdout, 16, key);
puts("\nBe sure to run this through newBitcoinKey in bitcoin.sh first if you are planning on using this to seed a Bitcoin address!");
puts("Generate another? [y/n]");
generate_keys = getchar();
while (generate_keys != 'y' && generate_keys != 'Y' && generate_keys != 'n' && generate_keys != 'N') {
generate_keys = getchar();
}
}
return 0;
}
int main() {
unsigned int input;
unsigned int bit_length;
unsigned int rng_ceil;
unsigned int key_size;
unsigned int bits;
char generate_keys = 'y';
while(is_power_of_two(rng_ceil = get_rng_ceil()) == 0) {
puts("Sorry, I can only use powers of 2!");
}
bit_length = get_bit_length(rng_ceil);
while (generate_keys == 'y' || generate_keys == 'Y') {
bits = 0;
key_size = get_key_size();
char key[BITNSLOTS(key_size)];
while (bits < key_size) {
input = (get_rng_input(rng_ceil) - 1);
for (int i = 0; i < bit_length && bits < key_size; i++) {
if (input % 2 == 1) {
BITSET(key, bits);
} else {
BITCLEAR(key, bits);
}
input = input >> 1;
bits += 1;
}
printf("%d of %d bits generated...\n", bits, key_size);
}
printf("Your key is:\n0x");
unsigned int chunk = 0;
for (int i = 0; i < bits; i++) {
if (BITTEST(key, i)) {
chunk += 1;
}
if (i > 0 && ((i+1) % HEXBITS == 0 || i+1 == bits)) {
printf("%X", chunk);
chunk = 0;
} else {
chunk = chunk << 1;
}
}
puts("\nBe sure to run this through newBitcoinKey in bitcoin.sh first if you are planning on using this to seed a Bitcoin address!");
puts("Generate another? [y/n]");
generate_keys = getchar();
while (generate_keys != 'y' && generate_keys != 'Y' && generate_keys != 'n' && generate_keys != 'N') {
generate_keys = getchar();
}
}
return 0;
}