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(PHP ActiveX) Send aes-gcm authEnvelopedData Encrypted EmailSee more SMTP ExamplesNote: This example requires Chilkat v10.0.0 or later Demonstrates how to send encrypted email using 128-bit AES in GCM mode.
"AES-GCM" (Advanced Encryption Standard - Galois/Counter Mode) is a cryptographic algorithm that provides both encryption and integrity protection (authentication). When used in the context of email security with "authEnvelopedData", it often refers to a method of securely sending encrypted and authenticated email content. Here’s a brief breakdown:
In short, AES-GCM with "authEnvelopedData" provides a way to encrypt and authenticate emails, making them confidential and resistant to tampering.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // The mailman object is used for sending and receiving email. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.MailMan') $mailman = new COM("Chilkat.MailMan"); $mailman->SmtpHost = 'smtp.example.com'; $mailman->SmtpUsername = 'my_smtp_login'; $mailman->SmtpPassword = 'my_smtp_password'; // The typical SMTP ports are 465 for implicit SSL/TLS or 587 for explicit SSL/TLS $mailman->SmtpPort = 465; $mailman->SmtpSsl = 1; // Use the recipient's certificate for encryption. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert') $cert = new COM("Chilkat.Cert"); $success = $cert->LoadFromFile('c:/someDir/recipient_cert.cer'); if ($success != 1) { print $cert->LastErrorText . "\n"; exit; } // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Email') $email = new COM("Chilkat.Email"); $email->Subject = 'This email is encrypted'; $email->Body = 'This is AES-GCM encrypted mail'; $email->From = 'Mary <mary@example1.com>'; $success = $email->AddTo('Joe','joe@example.com'); // Specify that AES-GCM w/ authEnvelopedData is to be used. // Also specify other params.. $email->Pkcs7CryptAlg = 'aes-gcm'; $email->Pkcs7KeyLength = 128; $email->OaepPadding = 1; $email->OaepHash = 'sha256'; $email->OaepMgfHash = 'sha256'; // Indicate the email is to be sent encrypted. $email->SendEncrypted = 1; // Specify the certificate to be used for encryption. $success = $email->SetEncryptCert($cert); $success = $mailman->SendEmail($email); if ($success != 1) { print $mailman->LastErrorText . "\n"; } else { print 'Mail Sent!' . "\n"; } ?> |
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