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SSL Pinning in iOS
Certificate Pinning and Public Key Pinning
Before start about Pinning we should know why we need it?
The answer is, we need it to prevent man-in-the-middle attack. SSL Pinning prevents a man-in-the-middle attack, which means an attacker can not intercept the traffic and modify the data. If an attacker can not intercept the traffic then the application automatically prevents many server-side vulnerabilities. That’s why implementing SSL is very important. Let’s learn about man-in-the-middle attack.
Man-In-The-Middle Attack
A man-in-the-middle is an attack is a cyberattack where the attacker secretly listens and eventually alters the communication between two parties who believe they are directly communicating with each other.
Attacker gain access to a user’s personal data or the data of some resource a user accesses such as banking data, user credentials, photos, documents, and messages.
Fortunately, there’s a simple way to prevent this kind of attack through a technique called SSL Pinning.
SSL Pinning
SSL Pinning is a technique that is used on the client-side to avoid a man-in-the-middle attack by validating the expected X509 certificate or public key.
