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Select Encryption Algorithm with SMTP Encrypted EmailDemonstrates how to select the encryption algorithm and strength (key size) when sending encrypted email. Downloads for Windows/Linux and Install Instructions require 'rubygems' require 'chilkat' # The mailman object is used for sending and receiving email. mailman = Chilkat::CkMailMan.new() # Any string argument automatically begins the 30-day trial. success = mailman.UnlockComponent("30-day trial") if (success != true) print "Component unlock failed" + "\n" exit end # Set the SMTP server. mailman.put_SmtpHost("smtp.comcast.net") # Create a new email object email = Chilkat::CkEmail.new() email.put_Subject("This email is encrypted") email.put_Body("This is a digitally encrypted mail") email.put_From("Chilkat Support <support@chilkatsoft.com>") email.AddTo("Chilkat Admin","admin@chilkatsoft.com") # In this example, we've already installed the certificate for "admin@chilkatsoft.com" # in the current user's personal certificate store. # If the email.SendEncrypted property is set, Chilkat will # automatically search for and use the first non-expired certificate # matching the recipient's email address. Chilkat searches # the Current User's Personal certificate store, as well # as the Local Machine's Personal certificate store. # Run certmgr.msc to view the certs in the Current User's # certificate store. email.put_SendEncrypted(true) # Use the CSP object to select an encryption algorithm: csp = Chilkat::CkCSP.new() # Make sure we're using the enhanced provider, which provides # access to stronger algorithms. csp.SetProviderMicrosoftEnhanced() # Select 168-bit 3DES (i.e. 192-bit DES if you include the parity bits) csp.SetEncryptAlgorithm("3DES") # Tell the email to use this CSP: email.SetCSP(csp) success = mailman.SendEmail(email) if (success != true) print mailman.lastErrorText() + "\n" else # Examine the LastErrorText anyway, so we can see # that 3DES was used... # You should see these lines in the log: # alg_name: 3DES # alg_bits: 168 print mailman.lastErrorText() + "\n" end |
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