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(Lianja) 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.
// 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. loMailman = createobject("CkMailMan") loMailman.SmtpHost = "smtp.example.com" loMailman.SmtpUsername = "my_smtp_login" loMailman.SmtpPassword = "my_smtp_password" // The typical SMTP ports are 465 for implicit SSL/TLS or 587 for explicit SSL/TLS loMailman.SmtpPort = 465 loMailman.SmtpSsl = .T. // Use the recipient's certificate for encryption. loCert = createobject("CkCert") llSuccess = loCert.LoadFromFile("c:/someDir/recipient_cert.cer") if (llSuccess <> .T.) then ? loCert.LastErrorText release loMailman release loCert return endif loEmail = createobject("CkEmail") loEmail.Subject = "This email is encrypted" loEmail.Body = "This is AES-GCM encrypted mail" loEmail.From = "Mary <mary@example1.com>" llSuccess = loEmail.AddTo("Joe","joe@example.com") // Specify that AES-GCM w/ authEnvelopedData is to be used. // Also specify other params.. loEmail.Pkcs7CryptAlg = "aes-gcm" loEmail.Pkcs7KeyLength = 128 loEmail.OaepPadding = .T. loEmail.OaepHash = "sha256" loEmail.OaepMgfHash = "sha256" // Indicate the email is to be sent encrypted. loEmail.SendEncrypted = .T. // Specify the certificate to be used for encryption. llSuccess = loEmail.SetEncryptCert(loCert) llSuccess = loMailman.SendEmail(loEmail) if (llSuccess <> .T.) then ? loMailman.LastErrorText else ? "Mail Sent!" endif release loMailman release loCert release loEmail |
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