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(PHP Extension) SHA256 Hash the Bytes Represented in a Hex StringDemonstrates how to compute the SHA256 hash of the bytes represented by a hexidecimal encoded string, and return the hash bytes as an hex encoded string.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // We wish to compute the SHA256 hash of the bytes 0x6C 0xF8 0xEA 0x51 0xE4 0xE0 0xF5 0x99 0xCF ... $src = '6CF8EA51E4E0F599CF03EC8D58C3DCBC9C889A77FB2816B40DE25C2EC54E98A67EA517B'; $bd = new CkBinData(); $success = $bd->AppendEncoded($src,'hex'); // The bd now contains the bytes 0x6C 0xF8 0xEA 0x51 0xE4 0xE0 0xF5 0x99 0xCF ... $crypt = new CkCrypt2(); $crypt->put_HashAlgorithm('sha256'); $crypt->put_EncodingMode('hex'); // Hash the bytes contained in bd, and return the 32-byte SHA256 hash as a hexidecimal encoded string. $result = $crypt->hashBdENC($bd); print $result . "\n"; ?> |
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