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(PHP ActiveX) AES Encrypt String (utf-8 byte representation) and return Base64Demonstrates how to AES encrypt the utf-8 byte representation of a string and return in base64 format.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2') $crypt = new COM("Chilkat.Crypt2"); $crypt->CryptAlgorithm = 'aes'; $crypt->CipherMode = 'cbc'; $crypt->KeyLength = 256; $crypt->Charset = 'utf-8'; $crypt->EncodingMode = 'base64'; $ivHex = '000102030405060708090A0B0C0D0E0F'; $crypt->SetEncodedIV($ivHex,'hex'); $keyHex = '000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F'; $crypt->SetEncodedKey($keyHex,'hex'); $encryptedStr = $crypt->encryptStringENC('This is the original string'); print $encryptedStr . "\n"; // Let's say we want to URL encode the base64 string.. $crypt->CryptAlgorithm = 'none'; $crypt->EncodingMode = 'url'; $urlEncoded = $crypt->encryptStringENC($encryptedStr); print $urlEncoded . "\n"; // Sample output: // q3fmgEqjqa9o//ZS6aPuh4Wtbrrxx/WOIQSKeVnesZg= // q3fmgEqjqa9o%2F%2FZS6aPuh4Wtbrrxx%2FWOIQSKeVnesZg%3D // ------------------------------------------------------------------- // Now let's do the reverse... // // We start with a string that is the binary encrypted data, base64 encoded, and then URL encoded. $encBase64Url = 'q3fmgEqjqa9o%2F%2FZS6aPuh4Wtbrrxx%2FWOIQSKeVnesZg%3D'; // We'll use the same crypt object. If using a new instance of the crypt object, // make sure *all* settings are identical: the algorithm, cipher mode, key length, charset, encoding mode, IV, and secret key. // Decode from URL... $crypt->CryptAlgorithm = 'none'; $crypt->EncodingMode = 'url'; $encBase64 = $crypt->decryptStringENC($urlEncoded); print $encBase64 . "\n"; // Now decrypt... $crypt->CryptAlgorithm = 'aes'; $crypt->EncodingMode = 'base64'; $originalStr = $crypt->decryptStringENC($encBase64); print $originalStr . "\n"; ?> |
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