Java is a programming language that is used extensively by developers all over the world. As per reliable research firms, Java is one of the most well-known programming languages in the world as of 2018.
Its fame is significantly high for the evolution of client-server web applications. We believe that as many as 9 million developers utilize the programming language. It is concurrent, class-based and object-oriented. Numerous programmers love it because of its flexibility, simplicity, and extensive support. Furthermore, Java also provides the function of “Write Once, Run Anywhere.” Meaning that the programmer only has to write one code for the app and it can then run on various platforms.
HOW SECURE IS JAVA?
The subsequent question that needs an answer to is the security of the programming languages. If Java experts are right, Java is very secure. There are a few who regard it as the most secure programming language around today. Several reasons make experts say this. The first reason for it is the compiler. They think that Java’s compiler can catch more compile-time errors. What is also impressive is that it doesn’t allocate points to memory directly. Hence, it becomes unlikely to reference memory that belongs to other programs and apps accidentally.
It is also good to note how Java implements runtime limitations. It is possible through the use of JVM which stands for Java Virtual Machine. We shall talk about it in more detail later in this article.
The programs that run using Java make use of Java Runtime Environment. In other words, these programs are bound, and they can’t perform any action that is beyond their limits. There are some restrictions regarding the kind of activities that they can undertake.
Let us consider some example of actions that the programmers can’t perform:
• They cannot create a new process.
• Reading/writing to the local disk is something that the programmers can’t do.
• Programmers can’t load new dynamic libraries.
• They can’t network-connect to any host.
KEY SECURITY FEATURES OF JAVA
Now that we have talked about the security features of Java, let us also concentrate on some of the functionalities and features that play a significant role in supporting the security features of it:
We mentioned briefly about JVM. It stands for Java Virtual Machine. Its fundamental role is to verify the bytecode. It makes sure that the program isn’t making any unsafe operations. There are different risky operations that the applications can regularly do. For instance, a program might branch to wrong locations that can hold data instead of instruction. The JVM guarantees that such unsafe operations do not exist.
Over and above this duty, the JVM also fortifies runtime constraints. It can cover array bounds checking and others. So, what does this mean to the developers? There are multiple security benefits that this returns to the developers. JVM lessens the possibilities of the developers suffering from memory safety flaws. Hence, they can evade such errors as buffer overflow or others. When compared with some of the other languages, this is undoubtedly a much more secure system.
The name of this function pretty much implies the task that it is supposed to do. Java provides this security manager to everyone. Consequently, they can run bytecodes that are untrusted in a “sandboxed” environment. How does this occur? Security Manager assures that the untrusted code doesn’t succeed in accessing some features of the platform and APIs.
Lastly, the Java Class Library has several other APIs that relate with security. It’s another excellent way of upholding the protection of the development work. Some such security-related APIs involves cryptographic algorithms, authentication protocols, and secure communication.
When we look at things in perspective, we recognize that Java offers a lot of functionalities and features that improve the functionality of this programming language. One has to know that nothing is wholly perfect. There is some vulnerability that all programming language has, and Java experiences it. Programmers need to be confident that they see the weakness of the program to take care of that during the development period.
However, the vulnerability aside; Java is indeed a secure platform. Most of the things mentioned above will tell you why many experts believe that it is the most secure programming language. When you investigate subjectively, you indeed discover features that are extraordinary. However, you are the best critic and should decide by what you think is most fitting for your project.
We hope this helps. All the best and happy learning!