Mystery of SSL - Part 2 - What is SSL?
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Recap: In the previous post, we understood that sending secret in clear text is not secure, through an example of passing notes between friends, to check out Part 1 what is encryption? . What is SSL? Nowadays we make most of our purchases online, we always ask a question is my debit card number is secure? To answer this question, we have to ask ourselves the following questions, Do I trust the shopping website? Do I trust the payment gateway (where we enter debit card number)? Trusting websites is just one part of the issue, another issue is that our debit card can be readable by any intermediate devices (routers, switches, etc.) during transit, this is possible if it is sent in an insecure channel. So how can we ensure that our secrets (passwords, phone number, and payment information) are not leaked? Here comes SSL for rescue. SSL (Secure Socket Layer) is a way to send your debit card number to your bank in a secure channel. If you still have a question that what is a