Go
Go
Specify a Certificate for Encrypted Email
See more Email Object Examples
Demonstrates the Chilkat Email.AddEncryptCert method, which explicitly specifies a certificate to use when sending encrypted email. Call it once per recipient certificate; ClearEncryptCerts clears the list. This example loads a recipient certificate, registers it, and enables encrypted sending.
Background: When encrypting to multiple people, each recipient needs to be able to decrypt with their own private key. S/MIME handles this by encrypting the message's one-time content key separately under each recipient's public certificate and including all of those wrapped keys in the message.
AddEncryptCert is how you build that recipient list — one call per certificate — giving explicit control over exactly whose certificates are used rather than relying on automatic lookup.Chilkat Go Downloads
success := false
// Demonstrates the AddEncryptCert method, which explicitly specifies a certificate for
// sending encrypted email. Call it once per recipient certificate. Use ClearEncryptCerts
// to clear the list.
email := chilkat.NewEmail()
email.SetSubject("Encrypted email")
email.SetBody("Encrypted to the specified recipient certificate(s).")
email.SetFrom("alice@example.com")
email.AddTo("Bob","bob@example.com")
// Load a recipient certificate (public key) and add it to the encryption cert list.
cert := chilkat.NewCert()
success = cert.LoadFromFile("qa_data/certs/recipient.cer")
if success == false {
fmt.Println(cert.LastErrorText())
email.DisposeEmail()
cert.DisposeCert()
return
}
success = email.AddEncryptCert(cert)
if success == false {
fmt.Println(email.LastErrorText())
email.DisposeEmail()
cert.DisposeCert()
return
}
// Request encrypted sending.
email.SetSendEncrypted(true)
fmt.Println("Added the recipient's encryption certificate.")
// Note: The path "qa_data/certs/recipient.cer" is a relative local filesystem path,
// relative to the current working directory of the running application.
email.DisposeEmail()
cert.DisposeCert()