Which technique is associated with Obfuscation?

Obfuscation is a technique used to make data or information unclear or unintelligible to anyone who does not have the means to decipher it. Disguising data using XOR is a classic example of obfuscation because it involves manipulating the data in such a way that its original form is not easily recognizable or recoverable without the appropriate key. XOR (exclusive OR) is a logical operation that takes two binary inputs and outputs true only when the inputs differ. By applying XOR to data with a secret key, the output appears as random noise and can only be restored to its original form by applying the XOR operation again with the same key. This technique effectively masks the original data, serving the purpose of obfuscation.

In contrast, the other techniques listed do not primarily serve the purpose of obfuscation. Digital signatures are used for authentication and integrity verification, ensuring that the data has not been tampered with and verifying the identity of the sender. Creating hash values is mainly associated with data integrity and ensuring that information has not changed, rather than making data unreadable. Implementing symmetric algorithms focuses on encrypting data securely in a way that can be decrypted only by someone who has the appropriate key, rather than obscuring the data itself for the