public function testMnemonicDecode() { $mnemonic = trim('teach start paradise collect blade chill gay childhood creek picture creator branch'); $known_seed = 'dcb85458ec2fcaaac54b71fba90bd4a5'; $known_secexp = '74b1f6c0caae485b4aeb2f26bab3cabdec4f0b432751bd454fe11b2d2907cbda'; $known_mpk = '819519e966729f31e1855eb75133d9e7f0c31abaadd8f184870d62771c62c2e759406ace1dee933095d15e4c719617e252f32dc0465393055f867aee9357cd52'; $known_addresses = ["", "", "", "", ""]; $seed = Electrum::decode_mnemonic($mnemonic); $this->assertEquals($seed, $known_seed); $mpk = Electrum::generate_mpk($seed); $this->assertEquals($mpk, $known_mpk); $secexp = Electrum::stretch_seed($seed); $secexp = $secexp['seed']; $this->assertEquals($secexp, $known_secexp); $count_known_addresses = count($known_addresses); for ($i = 0; $i < $count_known_addresses; $i++) { $privkey = Electrum::generate_private_key($secexp, $i, 0); $address_private_deriv = BitcoinLib::private_key_to_address($privkey, $this->magic_byte); $public_deriv = Electrum::public_key_from_mpk($mpk, $i); $address_private_deriv = BitcoinLib::public_key_to_address($public_deriv, $this->magic_byte); } }
<?php use BitWasp\BitcoinLib\BitcoinLib; use BitWasp\BitcoinLib\Electrum; require_once __DIR__ . '/../vendor/autoload.php'; $magic_byte = '00'; $string = trim('teach start paradise collect blade chill gay childhood creek picture creator branch'); $seed = Electrum::decode_mnemonic($string); echo "Words: {$string}\n"; echo "Seed: {$seed}\n"; $secexp = Electrum::stretch_seed($seed); $secexp = $secexp['seed']; echo "Secret Exponent: {$secexp}\n"; $mpk = Electrum::generate_mpk($seed); echo "MPK: {$mpk}\n"; for ($i = 0; $i < 5; $i++) { $privkey = Electrum::generate_private_key($secexp, $i, 0); echo "Private key: {$privkey}\n"; echo "Private WIF: " . BitcoinLib::private_key_to_WIF($privkey, FALSE, $magic_byte) . "\n"; $public_key = Electrum::public_key_from_mpk($mpk, $i); echo "Public Key: {$public_key}\n"; $address = BitcoinLib::public_key_to_address($public_key, $magic_byte); echo "Public derivation: {$address}.\n"; $address = BitcoinLib::private_key_to_address($privkey, $magic_byte); echo "Private derivation: {$address}.\n"; echo "-----------\n"; }
$seed = $seed['seed']; $master_public_key = Electrum::generate_mpk($seed); $private_keys = array(); $have_keys = 0; $done = FALSE; // Loop until the user is satisfied they have found all keys. $j = 0; $offset = 30; while ($done == FALSE) { $start = $offset * $j; echo "Trying keys {$start} to " . ($start + $offset) . "\n"; // Do public derivation to learn which private keys to derive. for ($i = $start; $i < $start + $offset; $i++) { $pubkey = Electrum::public_key_from_mpk($master_public_key, $i); if (in_array($pubkey, $decode_redeem_script['keys'])) { $private_keys[] = BitcoinLib::private_key_to_WIF(Electrum::generate_private_key($seed, $i), FALSE, '00'); $have_keys++; } if ($have_keys == $decode_redeem_script['m']) { $done = TRUE; break; } } $j++; // See if we should continue searching. $ask = FALSE; if ($done == FALSE) { echo "Have " . count($private_keys) . " private keys we can sign with. Look for more? (y/n) "; while ($ask == FALSE) { switch (trim(fgets(STDIN))) { case 'y':