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(Unicode C) Send Signed Email using PFX FileDemonstrates how to send a signed email using a digital certificate w/ private key stored in a PFX file.
#include <C_CkMailManW.h> #include <C_CkEmailW.h> void ChilkatSample(void) { HCkMailManW mailman; HCkEmailW email; BOOL success; // 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.mymailserver.com"); // Create a new email object email = CkEmailW_Create(); CkEmailW_putSubject(email,L"This email is signed"); CkEmailW_putBody(email,L"This is a digitally signed mail"); CkEmailW_putFrom(email,L"Chilkat Admin <admin@chilkatsoft.com>"); success = CkEmailW_AddTo(email,L"Chilkat Support",L"support@chilkatsoft.com"); // Indicate that the email should be sent signed. CkEmailW_putSendSigned(email,TRUE); // Tell the mailman to use a PFX file as a source for locating // the certificate and private key required for signing. // The certificate chosen for signing will be the one that // matches the sender's email address, which also has // a private key. All intermediate certs in the chain of // authentication, up to and including the root, will // be included in the signature. success = CkMailManW_AddPfxSourceFile(mailman,L"/pfx_files/chilkatsoft_secret.pfx",L"secret"); if (success != TRUE) { wprintf(L"%s\n",CkMailManW_lastErrorText(mailman)); CkMailManW_Dispose(mailman); CkEmailW_Dispose(email); return; } // Signed email can be sent in two different ways. // In a multipart/signed email, the signature is attached as a separate MIME part. // In an opaque email (signedData) the content of the email is encapsulated within the signature // and the email is sent as "application/pkcs7-mime". // Either should be fine, but some receiving systems might require one or the other.. CkMailManW_putOpaqueSigning(mailman,FALSE); // Send a signed email. success = CkMailManW_SendEmail(mailman,email); if (success != TRUE) { wprintf(L"%s\n",CkMailManW_lastErrorText(mailman)); } else { // The LastErrorText property provides information // even when successful. wprintf(L"%s\n",CkMailManW_lastErrorText(mailman)); wprintf(L"Mail Sent!\n"); } CkMailManW_Dispose(mailman); CkEmailW_Dispose(email); } |
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