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(PHP Extension) Encrypt MIME using RSAES-OAEP with SHA256 and AES-128 content encryptionDemonstrates how to encrypt MIME using RSAES-OAEP with SHA256 and AES-128 content encryption. Note: This example requires Chilkat v9.5.0.67 or greater.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $mime = new CkMime(); // Create a MIME message to encrypt. $mime->NewMultipartMixed(); $mime->AddHeaderField('someHeader1','Some value 1'); $mime->AddHeaderField('someHeader2','Some value 2'); $part0 = new CkMime(); $part0->AddHeaderField('hdrA','Some value A'); $part0->AddHeaderField('hdrB','Some value B'); $part0->put_ContentType('text/plain'); $part0->SetBody('This is the plain-text body.'); $part1 = new CkMime(); $part1->AddHeaderField('hdrX','Some value X'); $part1->AddHeaderField('hdrY','Some value Y'); $part1->put_ContentType('text/xml'); $part1->SetBody('<a>This is the XML body</a>'); $mime->AppendPart($part0); $mime->AppendPart($part1); // The MIME to be encrypted: $sbMime = new CkStringBuilder(); $mime->GetMimeSb($sbMime); print $sbMime->getAsString() . "\n"; // Content-Type: multipart/mixed; boundary="------------080303020600020604010008" // someHeader1: Some value 1 // someHeader2: Some value 2 // // --------------080303020600020604010008 // hdrA: Some value A // hdrB: Some value B // Content-Type: text/plain // // This is the plain-text body. // --------------080303020600020604010008 // hdrX: Some value X // hdrY: Some value Y // Content-Type: text/xml // // <a>This is the XML body</a> // --------------080303020600020604010008-- // // Load an RSA-based certificate. // (Encrypting MIME only requires the public key. Decrypting MIME requires the private key.) $cert = new CkCert(); $success = $cert->LoadFromFile('qa_data/rsaes-oaep/cert.pem'); if ($success != true) { print $cert->lastErrorText() . "\n"; exit; } // Set the email object properties to indicate the desired encryption. $mime->put_Pkcs7CryptAlg('aes'); // If AES-256 is desired, set the following property to 256. $mime->put_Pkcs7KeyLength(128); $mime->put_OaepPadding(true); // Other choices for the OAEP hash algorithm are "sha1", "sha384", and "sha512" $mime->put_OaepHash('sha256'); // Encrypt the MIME (to create S/MIME, which stands for "Secure MIME") $success = $mime->Encrypt($cert); if ($success != true) { print $mime->lastErrorText() . "\n"; exit; } print '---------------' . "\n"; print 'Encrypted MIME:' . "\n"; print '---------------' . "\n"; print $mime->getMime() . "\n"; print 'Success.' . "\n"; // --------------------------------------------------- // This is sample output for RSAES-OAEP encrypted MIME: // --------------------------------------------------- // Content-Type: application/x-pkcs7-mime; name="smime.p7m"; smime-type="enveloped-data" // someHeader1: Some value 1 // someHeader2: Some value 2 // Content-Disposition: attachment; filename="smime.p7m" // Content-Transfer-Encoding: base64 // // MIIDvAYJKoZIhvcNAQcDoIIDrTCCA6kCAQAxggGgMIIBnAIBADB1MGgxCzAJBgNVBAYTAlVTMQsw // CQYDVQQIDAJJTDEQMA4GA1UEBwwHV2hlYXRvbjEhMB8GA1UECgwYSW50ZXJuZXQgV2lkZ2l0cyBQ // dHkgTHRkMRcwFQYDVQQDDA5DaGlsa2F0V2lkZ2V0cwIJAMRwugDmvniwMBwGCSqGSIb3DQEBBzAP // oA0wCwYJYIZIAWUDBAIBBIIBAFaUL1ga1bOrdqYKcMm+FHUacBvzfBxk0fnPA0AMBdN8BvTWT3CN // YuqBhjOGyq0FpYD9pVZybUuFMCVsVyIW2O62HnsOK58YaPEUUcdH2sI+yjqX9UAn0P0nVDSsVdeK // W8x9kMfZg+3UP+y1q+lu7VRJO3f2C9oLQpTkc4VW4n7UOcUI0waykLCjCTL8lFDb7/J3GeuMKyhH // 5riNz50kpbzqn7m2Ks9yA+QmcTdXclclGFr2vwEUFzSdT2pxh/vaUrogCxkYWbQ2eV7vZg6O4kV0 // aqHBqySkPTAzHKiHH8K8GVdlTuJ8350CpICa4T8w7/Ht5I7dyOPPKy4C+rVtrvcwggH+BgkqhkiG // 9w0BBwEwHQYJYIZIAWUDBAECBBDTC2WNBN+z2I47/4Feu9YqgIIB0MZvl3nC/q/Wzil6HtfQTr12 // Q5moHY+ORzAa1P9XvX2ZUFhW530mV395mQw/A4o4ekmX9eRPEZquYzZPLT8hNeZIuNdhpcSQUmad // rKnKkR0wKJ3jJ3LhOIohVBQSYs8kVDZKq6lJBIznlsurFelZoNEhyRschhteDZx5rb7fCe8c2+/O // DHxaqaHCAzm/Bd7kcg6FFfuTZy3tu0PgP5IsXN4OFA3kkvwjAs4XsVS8jdIcmDNBkYieE8WmJOIm // Mz7mh/CHWLgWfGKa0Dkb9RcbFgLwYNT3GzuXFw9XPbKkEZjEAtJajWbN6P0WQl96YYd9qZxUpGxZ // zjTHEYzViUdUXolfpLufttrRXyxN1RFWhNFMFbv66xYqklMSgpdM/Mbk+EuvX6eXayDPvDBpfYMw // NoRAzv1Ony2c0ez9rBemJICicxAzpuvHbRxdjYs63Dnv+TYgpBK12AxWWpPIjXvw0WQKgTC3Tg8s // EnuGhpENqso/clJBEBSn4+2WhYtYbdI5sVme67lvqQl1Xxy3r18SWaQbyDOwgYi1E+54lMDOxMy0 // y0FPHk5pP45DnXWj+XORPp5LhuZr5mf62YOXSSUwR5P0cXy4Rc+pN5lhRQPCf5z2 ?> |
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