<?php
error_reporting(E_ALL | E_STRICT);
+define('HASH_ALGO', MHASH_RIPEMD320);
+define('BLOCK_SIZE', 100);
+define('NONCE_INCREMENT', 0.0000000000000001);
+define('START_TIME', microtime(TRUE));
+define('CHECK_POINT', 'chash.pos');
+
+// Found hashes
+$foundHashes = array();
+
+// Time when last flush occured
+global $timeFlush;
+
/**
* Continued-hashing
*
*/
function hashString ($str) {
// Calculate strong hash from given string
- $hash = mhash(MHASH_RIPEMD320, $str);
+ $hash = mhash(HASH_ALGO, $str);
// Return it hexadecimal-encoded
return bin2hex($hash);
return $hex;
}
+/**
+ * Calculates sum from given hash
+ *
+ * @param $hash Hash to calculate sum from
+ * @return $sum Sum from given hash
+ */
+function calculateSumFromHash ($hash) {
+ // Everything starts with zero ...
+ $sum = 0;
+
+ // Loop through hash
+ for ($idx = 0; $idx < (strlen($hash) / 2); $idx++) {
+ // And add it
+ $sum = $sum + (hexdec(substr($hash, $idx, 2)) * $idx & 256);
+ } // END - for
+
+ // And return it
+ return $sum;
+}
+
+/**
+ * Calculates new nonce
+ *
+ * @param $nonce Old nonce to be used
+ * @return $newNonce New nonce
+ */
+function calculateNonce ($nonce) {
+ // Linear incrementation
+ $newNonce = $nonce + NONCE_INCREMENT;
+
+ // Return new value
+ return $newNonce;
+}
+
+/**
+ * Writes/flushes check-point file
+ *
+ * @return void
+ */
+function flushCheckPointFile ($nonce, $modulaHash, array $foundHashes) {
+ global $timeFlush;
+
+ // Display message
+ print ('FLUSHING: ' . count($foundHashes) . ' total found.' . PHP_EOL);
+
+ // Flush data
+ file_put_contents(CHECK_POINT, base64_encode($nonce) . ':' . $modulaHash . ':' . base64_encode(serialize($foundHashes)));
+
+ // Set time
+ $timeFlush = microtime(TRUE);
+}
+
/*
* Calculate "genesis" hashes, please note that these "genesis strings" are now
* known to the public as you can read them here in source code and therefore I
*/
$hashes = array(
// A famous quote from Deus Ex 2 - Invisible War
- doublehashString('"Informations must be free." - AI Helios'),
+ doublehashString('"Informations must be free." - AI Helios from Deus Ex'),
// My name + URL of my first StatusNet instance
- doubleHashString('Roland Haeder, http://status.mxchange.org'),
+ doubleHashString('Roland Haeder, https://status.mxchange.org'),
// A famous quote from Linus Torwalds
doubleHashString('"Software is like sex. Its better when its free." - Linus Torwalds'),
// Possible truth ;-)
);
// Calulcate modula hash
-$modulaHash = modulaHash($sqrtHashes[0], $sqrtHashes[1]);
+$modulaHash = doubleHashString(modulaHash($sqrtHashes[0], $sqrtHashes[1]));
+
+// This is also the "genesis hash"
+$genesisHash = $modulaHash;
// Output results
print ('hashes=' . print_r($hashes, TRUE));
print ('sqrtHashes=' . print_r($sqrtHashes, TRUE));
print ('modulaHash=' . $modulaHash . PHP_EOL);
+// Total reward + hashes
+$totalReward = 0;
+$totalHashes = 0;
+$totalBlocks = 0;
+
+// Is the check point there?
+if (is_readable(CHECK_POINT)) {
+ // Then load it
+ $checkPoint = file_get_contents(CHECK_POINT);
+
+ // Explode it
+ $data = explode(':', $checkPoint);
+
+ // Assert on count
+ assert(count($data) == 3);
+
+ // 1st element is nonce, 2nd hash, 3rd found hashes
+ $nonce = base64_decode($data[0]);
+ $modulaHash = $data[1];
+ $foundHashes = unserialize(base64_decode($data[2]));
+} else {
+ // Create nonce (small)
+ $nonce = 1 / mt_rand();
+}
+
+// Output again
+print ('modulaHash=' . $modulaHash . PHP_EOL);
+print ('nonce=' . $nonce . PHP_EOL);
+print ('found=' . count($foundHashes) . PHP_EOL);
+
+// Start "mining"
+while (TRUE) {
+ // Init hash-per-block counter and hashrate
+ $hashesPerBlock = 0;
+ $hashrate = 0;
+
+ // Wait for BLOCK_SIZE iterations (= found hashes). This is one block
+ $timeBlock = microtime(TRUE);
+ $timeDisplay = $timeBlock;
+ $timeFlush = $timeBlock;
+
+ // Time waited for a good block again (no iteration)
+ $timeBadHashes = 0;
+
+ while (count($foundHashes) <= BLOCK_SIZE) {
+ // Create hash from modulaHash ("genesis hash") and nonce
+ $nonceHash = doubleHashString($modulaHash . $nonce);
+
+ // Calculate sums
+ $sumNonce = calculateSumFromHash($nonceHash);
+ $sumModula = calculateSumFromHash($modulaHash);
+
+ // Init counter
+ $iter = 0;
+ $iterSecond = 0;
+
+ // Now start the "mining" ...
+ $timeHash = microtime(TRUE);
+ while ($sumNonce >= $sumModula) {
+ // Calculate new nonce
+ $nonce = calculateNonce($nonce);
+
+ // And hash again
+ $nonceHash = doubleHashString($modulaHash . $nonce);
+
+ // Calculate sums
+ $sumNonce = calculateSumFromHash($nonceHash);
+
+ // Time spend in loop
+ $testTime = abs(microtime(TRUE) - $timeDisplay);
+
+ // Calculate hashrate/sec
+ $hashrate = 1 / $testTime * $iterSecond * 2;
+
+ // Only every second
+ if ($testTime >= 1) {
+ // Display hash rate
+ print ('hashrate=' . $hashrate . ' hashes/sec,iterSecond=' . $iterSecond . ' iterations/sec' . PHP_EOL);
+
+ // Reset timer
+ $timeDisplay = microtime(TRUE);
+ $iterSecond = 0;
+ } // END - if
+
+ // Time spend from last flush
+ $testTime = abs(microtime(TRUE) - $timeFlush);
+
+ // Only once per 10 seconds
+ if ($testTime >= 10) {
+ // Flush check-point file
+ flushCheckPointFile($nonce, $modulaHash, $foundHashes);
+ } // END - if
+
+ // Next round
+ $iter++;
+ $iterSecond++;
+ //print ('nonce=' . $nonce . ',iter=' . $iter . PHP_EOL);
+ //print ('nonceHash=' . $nonceHash . PHP_EOL);
+ //print ('sumNonce=' . $sumNonce . PHP_EOL);
+ //print ('sumModula=' . $sumModula . PHP_EOL);
+ } // END - while
+
+ // If the iteration is zero, then no hash is found
+ if ($iter == 0) {
+ // Bad hash found
+ $timeBadHashes += abs(microtime(TRUE) - $timeHash);
+
+ // And next round
+ //print('BAD:nonce=' . $nonce . PHP_EOL);
+
+ // Nothing found, so calculate new nonce
+ $nonce = calculateNonce($nonce);
+ continue;
+ } // END - if
+
+ // Add amount of hashes per block (double-hash)
+ $hashesPerBlock += $iter * 2 + 2;
+
+ // Push found hash
+ array_push($foundHashes, array(
+ 'modula_hash' => $modulaHash,
+ 'genesis_hash' => $genesisHash,
+ 'nonce' => $nonce,
+ 'iter' => $iter,
+ 'hashes_block' => $hashesPerBlock,
+ 'nonce_hash' => $nonceHash
+ ));
+
+ // Found hash:
+ print ('FOUND: nonceHash=' . $nonceHash . ',nonce=' . $nonce . ',iter=' . $iter . PHP_EOL);
+
+ // Flush check-point file after new hash is found
+ flushCheckPointFile($nonce, $nonceHash, $foundHashes);
+
+ // Use nonceHash as next modula hash
+ $modulaHash = $nonceHash;
+ } // END - while
+
+ // Time taken for one block
+ $timeBlock = abs(microtime(TRUE) - $timeBlock);
+
+ // Calculate reward
+ $reward = abs($timeBlock - $timeBadHashes) / $hashrate * $hashesPerBlock / BLOCK_SIZE * 1000;
+ print ('timeBlock=' . $timeBlock . ',timeBadHashes=' . $timeBadHashes . ',hashesPerBlock=' . $hashesPerBlock .',reward=' . $reward . PHP_EOL);
+
+ // Block completed
+ $totalHashes += $hashesPerBlock;
+ $totalBlocks++;
+ $hashesPerBlock = 0;
+ $foundHashes = array();
+
+ // Calculate new nonce
+ $nonce = calculateNonce($nonce);
+
+ // Add reward to total
+ $totalReward += $reward;
+
+ // Calculate average block value
+ $blockValue = $totalReward / $totalBlocks * $totalHashes / (BLOCK_SIZE * $totalBlocks);
+
+ // Calculate reward per hour (= 3600 seconds)
+ $rewardPerHour = $totalReward / abs(microtime(TRUE) - START_TIME) * 3600;
+
+ print ('totalReward=' . $totalReward . ',blockValue=' . $blockValue . ',rewardPerHour=' . $rewardPerHour . PHP_EOL);
+} // END - while
+
// [EOF]
?>
projects / core.git / blobdiff