A real world example of digital signature checking

In this post we will see exactly how we can check if a SSL certificate hasn’t been tampered with. We will use https://google.com as an example and we’re manually going to check that the certificate’s digital signature is valid. Other important steps such as traversing the entire chain is beyond the scope of this simple […]

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How to generate self signed certificates

Sometimes you need a self-signed certificate for the purpose of testing websites or digitally signing files such as PDFs. Your PDF software will probably ask you for a .pfx file. You can generate these on Windows, Mac or linux On Windows On windows, with Visual Studio, you can use the makecert utility: Linux and Mac […]

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