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(Excel) Extract PKCS7 from MIME and DecryptExtracts the base64-encoded PKCS7 body of a MIME message to a file, and then decrypts using Chilkat Crypt2.
' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim mime As Chilkat.Mime Set mime = Chilkat.NewMime success = mime.LoadMimeFile("c:/aaworkarea/EmailInBytes.txt") If (success <> True) Then Debug.Print mime.LastErrorText Exit Sub End If success = mime.SaveBody("c:/aaworkarea/smime.p7m") If (success <> True) Then Debug.Print mime.LastErrorText Exit Sub End If Dim crypt As Chilkat.Crypt2 Set crypt = Chilkat.NewCrypt2 success = crypt.AddPfxSourceFile("c:/aaworkarea/my.pfx","pfxPassword") If (success = False) Then Debug.Print crypt.LastErrorText Exit Sub End If ' Indicate the public-key (PKCS7) encryption/decryption should be used: crypt.CryptAlgorithm = "pki" inPath = "c:/aaworkarea/smime.p7m" outPath = "c:/aaworkarea/decrypted.dat" success = crypt.CkDecryptFile(inPath,outPath) If (success = False) Then Debug.Print crypt.LastErrorText Exit Sub End If Debug.Print "Success." |
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