Aryan PrajapatKnowledge Contributor
What Is Obfuscation in javascript
What Is Obfuscation in javascript
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Obfuscation in JavaScript refers to the process of making the source code more difficult to understand or read. This is typically done to protect the code from being easily copied, reverse-engineered, or tampered with. The goal is to make the code less human-readable while still allowing it to execute normally in the browser.
Here are some common techniques used in JavaScript obfuscation:
1. Variable and Function Renaming: Changing the names of variables and functions to meaningless or random characters. For example, function calculateTotal(price, tax) { return price + tax; } might be obfuscated to function a(b, c) { return b + c; }.
2. String Encryption: Encoding or encrypting strings in the code to prevent easy reading. The strings are often decoded at runtime.
3. Control Flow Obfuscation: Altering the control flow of the code to make it harder to follow. This might involve inserting redundant code, changing the order of operations, or using complex logic structures.
4. Dead Code Insertion: Adding code that does nothing or is never executed. This can make the actual functionality harder to discern from the extraneous parts.
5. Inlining and Packing: Combining multiple scripts into a single file and minifying the code. This not only reduces the readability but also the size of the code.
6. Hex Encoding: Converting parts of the code into hexadecimal or other formats, which must be decoded at runtime.