(Ruby) PKCS7 Decrypt MIME

Loads a PKCS7 encrypted MIME file and decrypts. The cert and private key used for decryption is loaded from a PFX file.

Downloads for Windows/Linux and Install Instructions

require 'chilkat'

mime = Chilkat::CkMime.new()

success = mime.UnlockComponent("Anything for 30-day trial.")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  Load the MIME
success = mime.LoadMimeFile("encryptedMime.txt")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  The AddPfxSourceFile and/or AddPfxSourceData
#  methods may be called one or more times (one per PFX)
#  to add sources from which the MIME component will
# search for certificates and private keys when decrypting.
pfxPassword = "myPassword"
success = mime.AddPfxSourceFile("myCertAndPrivateKey.pfx",pfxPassword)
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  Decrypt...
success = mime.Decrypt()
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

#  Display the decrypted MIME:
print mime.getMime() + "\n";