PHP Extension

Load EC Public Key from X,Y Values (easier)

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Demonstrates how to load an ECDSA public key from X and Y values using the LoadEcdsa method introduced in Chilkat v9.5.0.85. PHP Extension

<?php

include("chilkat.php");

$success = false;

// Note: This example requires Chilkat v9.5.0.85 or greater.

// We have the following x and y values in hex (for an EC point on the P-256 curve).
$x = '1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83';
$y = 'ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9';

$pubkey = new CkPublicKey();
$success = $pubkey->LoadEcdsa('secp256r1',$x,$y);
if ($success == false) {
    print $pubkey->lastErrorText() . "\n";
    exit;
}

print 'Success.' . "\n";

?>