My previous post explained the fundamentals of the OSI framework’s sixth layer: the presentation layer. This layer gives you independence from differences in the representation of (encrypted) data. Layer six does this by translating from application to network format and the other way around.
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In this post, I want to provide more insight into SSL/TLS. Talking about “SSL” can be very confusing and sometimes one person is talking about a protocol while the other is talking about a certificate.
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In my journey to get a better understanding of how current web-based technology works, I run into a lot of technical terms. A lot of terms are abbreviations and known to me but if I start thinking about these terms (for instance HTTP) I have no idea what it precisely does and why it’s used. To get a better understanding of all this terminology and its use, I decided to write down these terms now and then and explain them in one of my posts. The first items I would like to dive into are the key concepts of the web: Hypertext, HTTP(S) and URI/URL/URN.
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Everybody loves free (digital) services. But as many people know, these so-called free services have a catch most of the time and are not completely free. Unfortunately, not everybody is a good samaritan. The devil is in the details and these details are in complicated Terms and Conditions that nobody reads. Additionally, free services can lack proper security measures. A good example is the free WiFi service. In this post, I will provide tips on how to protect your privacy and your data against attackers on public WiFi.
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