<?php
error_reporting(E_ALL | E_STRICT);
+define('START_TIME' , microtime(TRUE));
+define('CHECK_POINT' , 'chash.pos');
+
+// Hashes needed to complete a "block"
+$GLOBALS['block_size'] = 100;
+$GLOBALS['none_increment'] = (1 / pow(10, 20));
+
+// Hashing algorythm
+$GLOBALS['hash_algo'] = MHASH_SHA256;
+
+// Automatic saving interval in seconds
+$GLOBALS['flush_file_time'] = 30;
+
+/*
+ * How long (in seconds) to try to find a proper hash until the best root hash
+ * is taken.
+ */
+$GLOBALS['restart_search_time'] = 1800;
+
+// Hashes per call
+$GLOBALS['hash_cycles'] = 5;
+
+// Total restarts
+$GLOBALS['total_restarts'] = 0;
+
+// Found hashes
+$GLOBALS['found_hashes'] = array(0 => array());
+
/**
* Continued-hashing
*
*/
function hashString ($str) {
// Calculate strong hash from given string
- $hash = mhash(MHASH_RIPEMD320, $str);
+ $hash = mhash($GLOBALS['hash_algo'], $str);
// Return it hexadecimal-encoded
return bin2hex($hash);
}
/**
- * Double-hashes given string. This is done by hashing the given string and
+ * Multiple-hashes given string. This is done by hashing the given string and
* then hashing the generated hash again.
*
* @param $str The string to be hashed 4 times
* @return $hash The generated hash
*/
-function doubleHashString ($str) {
+function multipleHashString ($str) {
// Generate hash from given hash
- $hash = hashString(hashString($str));
+ $hash = hashString($str);
+
+ // Now over-hash it
+ for ($idx = 0; $idx < ($GLOBALS['hash_cycles'] - 1); $idx++) {
+ // Over-hash the given hash
+ $hash = hashString($hash);
+ } // END - for
// Return it
return $hash;
// Both must have same length
assert(strlen($hash1) === strlen($hash2));
+ // Init propability array with 256 zeros
+ $propability = array_fill(0, 256, 0);
+
// Init new hash
$modulaHash = '';
$part1 = hexdec(substr($hash1, $idx, 2));
$part2 = hexdec(substr($hash2, $idx, 2));
+ // Debug message
+ //* NOISY-DEBUG: */ print 'part1=' . $part1 . ',part2=' . $part2 . PHP_EOL;
+
/*
* If part1 is larget part2, part1 is divident and vise-versa. But don't do it
* if one is zero
if (($part1 > $part2) && ($part2 > 0)) {
// 'part1' is larger than 'part2'
$mod = $part1 % $part2;
- } elseif (($part1 < $part2) && ($part1 > 0)) {
+ } elseif (($part2 > $part1) && ($part1 > 0)) {
// 'part2' is larger than 'part1'
$mod = $part2 % $part1;
}
- // "Invert" the result against 255
+ // $mod is now mostly a small number so try to "improve" it
+ //* NOISY-DEBUG: */ print 'mod[' . gettype($mod) . ']=' . $mod . ' - BEFORE!' . PHP_EOL;
+ $mod = (int) round(sqrt($mod * ($part1 + $part2 + $mod ^ 7) / 3));
+ //* NOISY-DEBUG: */ print 'mod[' . gettype($mod) . ']=' . $mod . ' - AFTER!' . PHP_EOL;
+
+ // Make sure it is valid
+ assert($mod >= 0);
+ assert($mod <= 255);
+
+ // "Invert" the result against 255 as zeros are not good for later calculations
$mod = 255 - $mod;
+ // Add it to propability array for debugging
+ $propability[$mod]++;
+
// Encode to hex, pre-pad it with zeros and add to new hash
$modulaHash .= padHex($mod);
} // END - for
+ // Debug propability array
+ $cnt = 0;
+ foreach ($propability as $value) {
+ // Is the value larger than one, means the number has been found at least once?
+ if ($value > 0) {
+ // Then count it
+ $cnt++;
+ } // END - if
+ } // END - foreach
+
+ // Debug message
+ //* NOISY-DEBUG: */ print('cnt=' . $cnt . '/' . strlen($hash1) / 2 . PHP_EOL);
+
// Modula hash must have same length as input hash
assert(strlen($modulaHash) === strlen($hash1));
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));
+ } // END - for
+
+ // And return it
+ return $sum;
+}
+
+/**
+ * Calculates new nonce
+ *
+ * @return void
+ */
+function calculateNonce () {
+ // Linear incrementation
+ $GLOBALS['nonce'] += $GLOBALS['none_increment'];
+}
+
+/**
+ * Writes/flushes check-point file
+ *
+ * @param $hash Modula hash (or hash to save)
+ * @return void
+ */
+function flushCheckPointFile ($hash) {
+ // Display message
+ print ('FLUSHING: Writing ' . count($GLOBALS['found_hashes']) . ' blocks ...' . PHP_EOL);
+
+ // Start timer
+ $timer = microtime(TRUE);
+
+ // Flush data
+ file_put_contents(
+ CHECK_POINT,
+ $GLOBALS['total_blocks'] . ':' .
+ $GLOBALS['total_reward'] . ':' .
+ $GLOBALS['total_hashes'] . ':' .
+ $GLOBALS['total_found'] . ':' .
+ $GLOBALS['total_restarts'] . ':' .
+ $GLOBALS['hash_cycles'] . ':' .
+ base64_encode((float) $GLOBALS['nonce']) . ':' .
+ $hash . ':' .
+ $GLOBALS['root_hash'] . ':' .
+ base64_encode(gzcompress(serialize($GLOBALS['found_hashes'])))
+ );
+
+ // Set time
+ $GLOBALS['time_flush'] = microtime(TRUE);
+ print ('FLUSHING: Took ' . ($GLOBALS['time_flush'] - $timer) . ' seconds.' . PHP_EOL);
+}
+
+/**
+ * Adds a found hash and flushes the checkpoint file
+ *
+ * @param $hash Hash to save
+ */
+function addFoundHash ($hash) {
+ // Increment counter
+ $GLOBALS['total_found']++;
+
+ // Add hash to array
+ array_push($GLOBALS['found_hashes'][$GLOBALS['total_blocks']], array(
+ 'modula_hash' => $GLOBALS['modula_hash'],
+ 'genesis_hash' => $GLOBALS['genesis_hash'],
+ 'root_hash' => $GLOBALS['root_hash'],
+ 'nonce' => (float) $GLOBALS['nonce'],
+ 'iter' => $GLOBALS['iteration'],
+ 'hashes_block' => $GLOBALS['hashes_block'],
+ 'hash_cycles' => $GLOBALS['hash_cycles'],
+ 'nonce_hash' => $hash
+ ));
+
+ // Found hash:
+ print ('FOUND: hash=' . $hash . ',nonce=' . $GLOBALS['nonce'] . ',total_found=' . $GLOBALS['total_found'] . PHP_EOL);
+
+ // Set time as a new hash was found
+ $GLOBALS['found_time'] = microtime(TRUE);
+
+ // Flush check-point file after new hash is found
+ flushCheckPointFile($hash);
+
+ // Use nonceHash as next modula hash
+ setModulaHash($hash);
+}
+
+/**
+ * Initializes nonce
+ *
+ * @return void
+ */
+function initNonce () {
+ $GLOBALS['nonce'] = 1 / (mt_rand() ^ pi());
+ print (__FUNCTION__ . ': nonce=' . $GLOBALS['nonce'] . PHP_EOL);
+}
+
+/**
+ * Sets modula hash and calculates sum of it
+ *
+ * @param $hash Hash to set as "modula hash"
+ * @return void
+ */
+function setModulaHash ($hash) {
+ $GLOBALS['modula_hash'] = $hash;
+ $GLOBALS['sum_modula'] = calculateSumFromHash($GLOBALS['modula_hash']);
+}
+
/*
* 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
* will not use them for the real genesis hashes.
*/
-$hashes = array(
+$gensisHashes = array(
// A famous quote from Deus Ex 2 - Invisible War
- doublehashString('"Informations must be free." - AI Helios'),
+ multiplehashString('"Informations must be free." - AI Helios from Deus Ex'),
// My name + URL of my first StatusNet instance
- doubleHashString('Roland Haeder, http://status.mxchange.org'),
+ multipleHashString('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 ;-)
- doubleHashString('September 11 is a big lie.'),
+ multipleHashString('"Software is like sex. Its better when its free." - Linus Torwalds'),
+ // Well ...
+ multipleHashString('September 11 is a big lie.'),
// GNU is not Uni*
- doubleHashString('GNU is Not Uni*.'),
+ multipleHashString('GNU is Not Uni*.'),
// WINE is not an emulator
- doubleHashString('WINE Is Not an Emulator.'),
+ multipleHashString('WINE Is Not an Emulator.'),
// FlightGear - Fly free!
- doubleHashString('FlightGear - Fly free!'),
- // Linus Torwalds Quote
- doubleHashString('Your code is shit.. your argument is shit.'),
+ multipleHashString('FlightGear - Fly free!'),
+ // Quote from Linus Torwalds
+ multipleHashString('Your code is shit. Your argument is shit.'),
);
// Calculate "modula hash" from 1st/4th and 2nd/3rd
$modulaHashes = array(
// "Block" 0
- modulaHash($hashes[0], $hashes[3]),
- modulaHash($hashes[1], $hashes[2]),
+ modulaHash($gensisHashes[0], $gensisHashes[3]),
+ modulaHash($gensisHashes[1], $gensisHashes[2]),
// "Block" 1
- modulaHash($hashes[4], $hashes[7]),
- modulaHash($hashes[5], $hashes[6]),
+ modulaHash($gensisHashes[4], $gensisHashes[7]),
+ modulaHash($gensisHashes[5], $gensisHashes[6]),
);
// Calculate "sqrt hash"
);
// Calulcate modula hash
-$modulaHash = modulaHash($sqrtHashes[0], $sqrtHashes[1]);
+setModulaHash(multipleHashString(modulaHash($sqrtHashes[0], $sqrtHashes[1])));
+
+// This is also the "genesis" hash and first root hash
+$GLOBALS['genesis_hash'] = $GLOBALS['modula_hash'];
+$GLOBALS['root_hash'] = $GLOBALS['modula_hash'];
// Output results
-print ('hashes=' . print_r($hashes, TRUE));
+print ('hashes=' . print_r($gensisHashes, TRUE));
print ('modulaHashes=' . print_r($modulaHashes, TRUE));
print ('sqrtHashes=' . print_r($sqrtHashes, TRUE));
-print ('modulaHash=' . $modulaHash . PHP_EOL);
+print ('modulaHash=' . $GLOBALS['modula_hash'] . PHP_EOL);
+
+// Total reward + hashes
+$GLOBALS['total_reward'] = 0;
+$GLOBALS['total_hashes'] = 0;
+$GLOBALS['total_found'] = 0;
+$GLOBALS['total_blocks'] = 0;
+$GLOBALS['found_time'] = microtime(TRUE);
+
+// 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) == 10);
+
+ // 1st element is nonce, 2nd hash, 3rd found hashes
+ $GLOBALS['total_blocks'] = $data[0];
+ $GLOBALS['total_reward'] = $data[1];
+ $GLOBALS['total_hashes'] = $data[2];
+ $GLOBALS['total_found'] = $data[3];
+ $GLOBALS['total_restarts'] = $data[4];
+ $GLOBALS['hash_cycles'] = intval($data[5]);
+ $GLOBALS['nonce'] = (float) base64_decode($data[6]);
+ $GLOBALS['root_hash'] = $data[8];
+ $GLOBALS['found_hashes'] = unserialize(gzuncompress(base64_decode($data[9])));
+
+ // Set modula hash
+ setModulaHash($data[7]);
+} else {
+ // Create nonce (small)
+ initNonce();
+}
+
+// Output again
+print ('modulaHash=' . $GLOBALS['modula_hash'] . PHP_EOL);
+print ('nonce=' . $GLOBALS['nonce'] . PHP_EOL);
+print ('found=' . count($GLOBALS['found_hashes'][$GLOBALS['total_blocks']]) . PHP_EOL);
+
+// Start "mining"
+while (TRUE) {
+ // Init hash-per-block counter and hashrate
+ $GLOBALS['hashes_block'] = 0;
+ $hashrate = 0;
+
+ // Wait for block_size iterations (= found hashes). This is one block
+ $timeBlock = microtime(TRUE);
+ $timeDisplay = $timeBlock;
+ $GLOBALS['time_flush'] = $timeBlock;
+
+ // Time waited for a good block again (no iteration)
+ $timeBadHashes = 0;
+
+ while (count($GLOBALS['found_hashes'][$GLOBALS['total_blocks']]) <= $GLOBALS['block_size']) {
+ // Create hash from modulaHash ("genesis hash") and nonce
+ $nonceHash = multipleHashString($GLOBALS['nonce'] . $GLOBALS['modula_hash']);
+
+ // Calculate sums
+ $sumNonce = calculateSumFromHash($nonceHash);
+
+ // Init counter
+ $GLOBALS['iteration'] = 0;
+ $GLOBALS['iteration_second'] = 0;
+
+ // Now start the "mining" ...
+ $timeHash = microtime(TRUE);
+ while ($sumNonce < $GLOBALS['sum_modula']) {
+ // Calculate new nonce
+ calculateNonce();
+
+ // And hash again
+ $nonceHash = multipleHashString($GLOBALS['nonce'] . $GLOBALS['modula_hash']);
+
+ // Calculate sums
+ $sumNonce = calculateSumFromHash($nonceHash);
+
+ // Time spend in loop
+ $testTime = abs(microtime(TRUE) - $timeDisplay);
+
+ // Calculate hashrate/sec
+ $hashrate = 1 / $testTime * $GLOBALS['iteration_second'] * $GLOBALS['hash_cycles'];
+
+ // Only every second
+ if ($testTime >= 1) {
+ // Display hash rate
+ print ('hashrate=' . round($hashrate) . ' hashes/sec,iterSecond=' . $GLOBALS['iteration_second'] . ' iterations/sec' . PHP_EOL);
+
+ // Reset timer
+ $timeDisplay = microtime(TRUE);
+ $GLOBALS['iteration_second'] = 0;
+ } // END - if
+
+ // Time spend from last flush
+ $testTime = abs(microtime(TRUE) - $GLOBALS['time_flush']);
+
+ // Only once per 10 seconds
+ if ($testTime >= $GLOBALS['flush_file_time']) {
+ // Flush check-point file
+ flushCheckPointFile($GLOBALS['modula_hash']);
+ } // END - if
+
+ // Time spend from last found block
+ $testTime = abs(microtime(TRUE) - $GLOBALS['found_time']);
+
+ // Is the last found time to far away?
+ if ($testTime >= $GLOBALS['restart_search_time']) {
+ // Count up restart
+ $GLOBALS['total_restarts']++;
+
+ // Output message
+ print('total_restarts=' . $GLOBALS['total_restarts'] . ' - Restarting ...');
+
+ // Count all root (genesis) hashes
+ $rootHashes = array();
+ foreach ($GLOBALS['found_hashes'] as $block) {
+ // "Walk" through all blocks
+ foreach ($block as $hash) {
+ if (!isset($hash['root_hash'])) {
+ // Bad file
+ die('INCONSISTENCY: hash=' . print_r($hash, TRUE));
+ } // END - if
+
+ if (isset($rootHashes[$hash['root_hash']])) {
+ // Count up
+ $rootHashes[$hash['root_hash']]++;
+ } else {
+ // First entry found
+ $rootHashes[$hash['root_hash']] = 1;
+ }
+ } // END - foreach
+ } // END - foreach
+
+ // Find best root hash
+ $bestRootHash = '';
+ $bestRootCount = 0;
+ foreach ($rootHashes as $hash => $count) {
+ // Debug message
+ //* NOISY-DEBUG: */ print ('hash=' . $hash . ',count=' . $count . ',bestRootHash=' . $bestRootHash . ',bestRootCount=' . $bestRootCount . PHP_EOL);
+
+ // Is a better one found?
+ if ($count > $bestRootCount) {
+ // Remember it
+ $bestRootHash = $hash;
+ $bestRootCount = $count;
+ } // END - if
+ } // END - foreach
+
+ // Output message
+ print ('bestRootHash=' . $bestRootHash . ',bestRootCount=' . $bestRootCount . PHP_EOL);
+
+ // Search for latest best root hash
+ foreach ($GLOBALS['found_hashes'] as $block) {
+ // "Walk" through whole block and search for first appearance of best root hash
+ foreach ($block as $idx => $hash) {
+ // Is the root hash there?
+ if ($hash['root_hash'] == $bestRootHash) {
+ // Set found modula hash as new root and current modula hash
+ $GLOBALS['root_hash'] = $hash['nonce_hash'];
+ setModulaHash($hash['nonce_hash']);
+ print ('idx=' . $idx . ',modulaHash=' . $GLOBALS['root_hash'] . ' - Is now new root hash!' . PHP_EOL);
+
+ // Reset "found time" (when a hash was found)
+ $GLOBALS['found_time'] = microtime(TRUE);
+
+ // Re-initialize nonce
+ initNonce();
+
+ // Abort search
+ break;
+ } // END - if
+ } // END - for
+ } // END - foreach
+ } // END - if
+
+ // Next round
+ $GLOBALS['iteration']++;
+ $GLOBALS['iteration_second']++;
+ //print ('nonce=' . $GLOBALS['nonce'] . ',iteration=' . $GLOBALS['iteration'] . PHP_EOL);
+ //print ('nonceHash=' . $nonceHash . PHP_EOL);
+ //print ('sumNonce=' . $sumNonce . PHP_EOL);
+ //print ('sumModula=' . $GLOBALS['sum_modula'] . PHP_EOL);
+ } // END - while
+
+ // If the iteration is zero, then no hash is found
+ if ($GLOBALS['iteration'] == 0) {
+ // Bad hash found
+ $timeBadHashes += abs(microtime(TRUE) - $timeHash);
+
+ // And next round
+ print('BAD:nonce=' . $GLOBALS['nonce'] . PHP_EOL);
+
+ // Nothing found, so calculate new nonce
+ calculateNonce();
+ continue;
+ } // END - if
+
+ // Add amount of hashes per block (multiple-hash)
+ $GLOBALS['hashes_block'] += $GLOBALS['iteration'] * $GLOBALS['hash_cycles'] + $GLOBALS['hash_cycles'];
+
+ // Push found hash
+ addFoundHash($nonceHash);
+ } // END - while
+
+ // Time taken for one
+ $timeBlock = abs(microtime(TRUE) - $timeBlock);
+
+ // Calculate reward
+ $reward = abs($timeBlock - $timeBadHashes) / $hashrate * $GLOBALS['hashes_block'] / $GLOBALS['block_size'] * 1000;
+ print ('timeBlock=' . $timeBlock . ',timeBadHashes=' . $timeBadHashes . ',hashesPerBlock=' . $GLOBALS['hashes_block'] .',reward=' . $reward . PHP_EOL);
+
+ // Block completed
+ $GLOBALS['total_hashes'] += $GLOBALS['hashes_block'];
+ $GLOBALS['total_blocks']++;
+ $GLOBALS['hashes_block'] = 0;
+
+ // Init next block
+ $GLOBALS['found_hashes'][$GLOBALS['total_blocks']] = array();
+
+ // Calculate new nonce
+ calculateNonce();
+
+ // Add reward to total
+ $GLOBALS['total_reward'] += $reward;
+
+ // Calculate average block value
+ $blockValue = $GLOBALS['total_reward'] / $GLOBALS['total_blocks'] * $GLOBALS['total_hashes'] / ($GLOBALS['block_size'] * $GLOBALS['total_blocks']);
+
+ // Calculate reward per hour (= 3600 seconds)
+ $rewardPerHour = $GLOBALS['total_reward'] / abs(microtime(TRUE) - START_TIME) * 3600;
+
+ print ('totalReward=' . $GLOBALS['total_reward'] . ',blockValue=' . $blockValue . ',rewardPerHour=' . $rewardPerHour . PHP_EOL);
+} // END - while
// [EOF]
?>
projects / core.git / blobdiff