bip39_to_address.c

#include <stdio.h>
#include <string.h>
#include <openssl/sha.h>
#include <openssl/ripemd.h>
#include <bitcoin/bitcoin.h>

#define BIP39_ENTROPY_LEN 32
#define BIP39_MNEMONIC_LEN 12

void bip39_to_address(const char *mnemonic, const char *password)
{
    // Decode BIP39 mnemonic and validate checksum
    uint8_t entropy[BIP39_ENTROPY_LEN];
    if (!bip39_mnemonic_to_entropy(mnemonic, entropy, BIP39_ENTROPY_LEN) ||
        !bip39_mnemonic_validate_checksum(mnemonic))
    {
        printf("Invalid BIP39 mnemonic or checksum\n");
        return;
    }

    // Generate HD wallet from BIP39 seed
    hd_private_t *hd_root = hd_new();
    hd_generate_from_seed(entropy, BIP39_ENTROPY_LEN, password, hd_root);

    // Derive public key from HD wallet
    bc_public_key_t *public_key = bc_public_key_new();
    hd_to_public_key(hd_root, public_key);

    // Generate Bitcoin address from public key
    bc_address_t *address = bc_address_new();
    bc_public_key_to_address(public_key, BC_ADDRESS_P2PKH, address);

    printf("Bitcoin address: %s\n", bc_address_string(address));

    // Free memory
    hd_free(hd_root);
    bc_public_key_free(public_key);
    bc_address_free(address);
}

int main()
{
    // Example BIP39 seed phrase and password
    const char *mnemonic = "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about";
    const char *password = "";

    // Convert BIP39 seed phrase to Bitcoin address
    bip39_to_address(mnemonic, password);

    return 0;
}