PHP ActiveX

Hash Binary Data (SHA256 and other hash algorithms)

Demonstrates how to hash binary bytes using SHA256, SHA384, SHA512, MD2, MD5, HAVAL, RIPEMD, etc. PHP ActiveX

<?php

$success = 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Let's load a binary file to get the bytes..
$jpgData = new COM("Chilkat.BinData");
$success = $jpgData->LoadFile('qa_data/jpg/starfish.jpg');
if ($success != 1) {
    print 'Failed to load file.' . "\n";
    exit;
}

$jpgBytes = $jpgData->GetBinary();

$crypt = new COM("Chilkat.Crypt2");

// Choose the hash algorithm.
// Can be  "sha1", "sha256", "sha384", "sha512", "md2", "md5", "haval", "ripemd128", "ripemd160","ripemd256", or "ripemd320".
$crypt->HashAlgorithm = 'sha256';

$hashBytes = $crypt->HashBytes($jpgBytes);

// Let's examine the hash as a hex string.
$sb = new COM("Chilkat.StringBuilder");
$sb->AppendEncoded($hashBytes,'hex');
print 'SHA256 hash = ' . $sb->getAsString() . "\n";

// We could alternatively hash the bytes and receive the hex result directly:
$crypt->EncodingMode = 'hex';
$hashHexStr = $crypt->hashBytesENC($jpgBytes);
print 'SHA256 hash = ' . $hashHexStr . "\n";

?>