![]() What it doesn’t check is if the certificate in question is the expected certificate. Has a verifiable chain of trust back to a trusted (root) certificate. ![]() In the following wireshark screenshot you can see all the hadnshake process:īy default, when making an SSL connection, the client checks that the server’s certificate: Client verifies server certificate and they exchange the keys they will use to encrypt and decrypt the communication.Server sends his certificate and public key.Client requests to the server an encrypted session and sends his cipher suites.The following image is a summary of the handshake: The handshake determines what cipher suite will be used to encrypt their communications, verifies the server, and establishes that a secure connection is in place before beginning the actual transfer of data. SSL HandshakeĮvery SSL/TLS connection begins with a “handshake” – the negotiation between two parties that nails down the details of how they will proceed. In this post I will explain how SSL handshake works, what is certificate pinning and mutual authentication and how an attacker can bypass these controls.
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