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(PHP Extension) RSA Encrypt with Modulus and ExponentDemonstrates how to RSA encrypt with a given modulus and exponent. Note: This example requires Chilkat v11.0.0 or greater.
<?php include("chilkat.php"); $success = false; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $rsa = new CkRsa(); // Assuming you already have a base64 modulus and exponent, // wrap it in XML like this: $modulus = 'qMBRpdYrAy5aMmo31NErUizh5sbweguSmh4wlK6uJEIDl+kwTlROnE34KOFExeTbJSX0WygPi+vWl0yNq7buIMUKpytossAAWut5khO3CQJxTk7G2gnEPNUUXHiExGgNrLzcSLv8YIlfVALhoRWyC67KOL+a+3taNq3h+BHeWhM='; $exponent = 'AQAB'; $xml = new CkXml(); $xml->put_Tag('RSAPublicKey'); $xml->NewChild2('Modulus',$modulus); $xml->NewChild2('Exponent',$exponent); $pubKey = new CkPublicKey(); $success = $pubKey->LoadFromString($xml); if ($success == false) { print $pubKey->lastErrorText() . "\n"; exit; } $success = $rsa->UsePublicKey($pubKey); if ($success == false) { print $rsa->lastErrorText() . "\n"; exit; } $usePrivateKey = false; $plainText = 'message in a bottle'; $rsa->put_EncodingMode('base64'); $encryptedStrBase64 = $rsa->encryptStringENC($plainText,$usePrivateKey); print $encryptedStrBase64 . "\n"; ?> |
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