C++ (Cpp) get_rng_input Examples

Example #1

File: keygen.c Project: eins78/dice-keygen

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;
}

Example #2

File: keygen.c Project: ryepdx/dice-keygen

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;
}