Added a lot stuff + initial "block miner".

Signed-off-by: Roland Häder <roland@mxchange.org>

diff --git a/contrib/chash/chash.php b/contrib/chash/chash.php
index 5bd2893debf4e293d75e02ee62f50b5fc31e7e11..7101f3dcdeefffdb4af5f9b353193c123b8476e7 100644 (file)
--- a/contrib/chash/chash.php
+++ b/contrib/chash/chash.php
@@ -1,6 +1,11 @@
 <?php
 error_reporting(E_ALL | E_STRICT);
 
+define('HASH_ALGO', MHASH_RIPEMD320);
+define('BLOCK_SIZE', 1000);
+define('NONCE_INCREMENT', 0.1);
+define('START_TIME', microtime(TRUE));
+
 /**
  * Continued-hashing
  *
@@ -18,7 +23,7 @@ error_reporting(E_ALL | E_STRICT);
  */
 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($hash);
@@ -142,6 +147,40 @@ function padHex ($num) {
        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;
+}
+
 /*
  * 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
@@ -185,7 +224,7 @@ $sqrtHashes = array(
 );
 
 // Calulcate modula hash
-$modulaHash = modulaHash($sqrtHashes[0], $sqrtHashes[1]);
+$modulaHash = doubleHashString(modulaHash($sqrtHashes[0], $sqrtHashes[1]));
 
 // Output results
 print ('hashes=' . print_r($hashes, TRUE));
@@ -193,5 +232,121 @@ print ('modulaHashes=' . print_r($modulaHashes, TRUE));
 print ('sqrtHashes=' . print_r($sqrtHashes, TRUE));
 print ('modulaHash=' . $modulaHash . PHP_EOL);
 
+// Total reward + hashes
+$totalReward = 0;
+$totalHashes = 0;
+$totalBlocks = 0;
+
+// Create nonce (small)
+$nonce = 1 / mt_rand();
+
+while (TRUE) {
+       // Init hash-per-block counter
+       $hashesPerBlock = 0;
+
+       // Wait for BLOCK_SIZE iterations (= found hashes). This is one block
+       $timeBlock = microtime(TRUE);
+       $timeDisplay = $timeBlock;
+
+       // Time waited for a good block again (no iteration)
+       $timeBadHashes = 0;
+
+       while ($hashesPerBlock <= BLOCK_SIZE) {
+               // Init counter
+               $iter = 0;
+
+               // Create hash from modulaHash ("genesis hash") and nonce
+               $nonceHash = doubleHashString($modulaHash . $nonce);
+
+               // Calculate sums
+               $sumNonce  = calculateSumFromHash($nonceHash);
+               $sumModula = calculateSumFromHash($modulaHash);
+
+               // Now start the "mining" ...
+               $timeHash = microtime(TRUE);
+               while ($sumNonce <= $sumModula) {
+                       // Calculate sums
+                       $sumNonce  = calculateSumFromHash($nonceHash);
+                       $sumModula = calculateSumFromHash($modulaHash);
+
+                       // Calculate new nonce
+                       $nonce = calculateNonce($nonce);
+
+                       // And hash again
+                       $nonceHash = doubleHashString($modulaHash . $nonce);
+
+                       // Next round
+                       $iter++;
+                       //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 block found
+                       $timeBadHashes += abs(microtime(TRUE) - $timeHash);
+
+                       // Nothing found, so calculate new nonce
+                       $nonce = calculateNonce($nonce);
+
+                       // And next round
+                       continue;
+               } // END - if
+
+               // Add amount of hashes to block (double-hash)
+               $hashesPerBlock += $iter * 2 + 2;
+
+               // Time spend in loop
+               $testTime = abs(microtime(TRUE) - $timeDisplay);
+
+               // Only every second
+               if ($testTime >= 1) {
+                       // Calculate hashrate/sec
+                       $timeHash = abs(microtime(TRUE) - $timeHash);
+                       $hashrate = 1 / $timeHash * $iter * 2 + 2;
+                       print ('hashesPerBlock=' . $hashesPerBlock . ',hashrate=' . $hashrate . ' hashes/sec.' . PHP_EOL);
+
+                       // Reset timer
+                       $timeDisplay = microtime(TRUE); 
+               } // END - if
+
+               // Found hash:
+               //print ('nonceHash=' . $nonceHash .',iter=' . $iter . PHP_EOL);
+       } // END - while
+
+       // Time taken for one block
+       $timeBlock = abs(microtime(TRUE) - $timeBlock);
+       //print ('calculateSumFromHash(modulaHash)=' . calculateSumFromHash($modulaHash) . PHP_EOL);
+       //print ('calculateSumFromHash(nonceHash)=' . calculateSumFromHash($nonceHash) . PHP_EOL);
+
+       // 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;
+
+       // Calculate next hash from both hashes
+       $modulaHash = doubleHashString(modulaHash($nonceHash, $modulaHash));
+
+       // 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]
 ?>