Perl

SHA256 Hash the Bytes Represented in a Hex String

Demonstrates 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. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

# 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 ...
my $src = '6CF8EA51E4E0F599CF03EC8D58C3DCBC9C889A77FB2816B40DE25C2EC54E98A67EA517B';

my $bd = Chilkat2::BinData->new;
my $success = $bd->AppendEncoded($src, 'hex');

# The bd now contains the bytes 0x6C 0xF8 0xEA 0x51 0xE4 0xE0 0xF5 0x99 0xCF ...

my $crypt = Chilkat2::Crypt2->new;
$crypt->HashAlgorithm('sha256');
$crypt->EncodingMode('hex');

# Hash the bytes contained in bd, and return the 32-byte SHA256 hash as a hexidecimal encoded string.
my $result = $crypt->HashBdENC($bd);
print $result, "\n";