TLS-Attacker
· TLS-Attacker is a Java-based framework for analyzing TLS libraries. It is developed by the Ruhr University Bochum (https://nds.rub.de/), the Paderborn University, and the Hackmanit GmbH (https://hackmanit.de/).
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window tls-attacker-5.3.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.