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(Unicode C) Sending S/MIME Encrypted EmailSends an encrypted email using the recipient's digital certificate from a .cer file.
#include <C_CkMailManW.h> #include <C_CkCertW.h> #include <C_CkEmailW.h> void ChilkatSample(void) { HCkMailManW mailman; HCkCertW cert; BOOL success; HCkEmailW email; // 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. mailman = CkMailManW_Create(); // Set the SMTP server. CkMailManW_putSmtpHost(mailman,L"smtp.comcast.net"); // Load the .cer file into a certificate object. // When sending S/MIME encrypted email, it is the recipient's // certificate that is used for encryption. Only the public key // is needed to encrypt. The recipient is the only // one possessing the private key, and therefore is the only // one able to decrypt. cert = CkCertW_Create(); success = CkCertW_LoadFromFile(cert,L"cknotes.cer"); if (success != TRUE) { wprintf(L"%s\n",CkCertW_lastErrorText(cert)); CkMailManW_Dispose(mailman); CkCertW_Dispose(cert); return; } // Create a new email object email = CkEmailW_Create(); CkEmailW_putSubject(email,L"This email is encrypted"); CkEmailW_putBody(email,L"This is a digitally encrypted mail"); CkEmailW_putFrom(email,L"Chilkat Support <support@chilkatsoft.com>"); success = CkEmailW_AddTo(email,L"Chilkat Blog",L"admin@cknotes.com"); // Indicate that the email is to be sent encrypted. CkEmailW_putSendEncrypted(email,TRUE); // Specify the certificate to be used for encryption. success = CkEmailW_SetEncryptCert(email,cert); success = CkMailManW_SendEmail(mailman,email); if (success != TRUE) { wprintf(L"%s\n",CkMailManW_lastErrorText(mailman)); } else { wprintf(L"Mail Sent!\n"); } CkMailManW_Dispose(mailman); CkCertW_Dispose(cert); CkEmailW_Dispose(email); } |
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