XOR Extractor

XOR Extractor computes a byte-wise XOR between two inputs, accepting hex strings or UTF-8 text. It outputs the result in hex or base64 and repeats the key to match the data length. This supports quick validation of XOR-based encodings and obfuscation tests.
Conceptually, inputs are converted to byte arrays, then each data byte is XORed with the corresponding key byte (cycling the key if needed). For example, data 4f6b in hex and key 01 yields 4e6a in hex.
Beneficiaries include security researchers, incident responders, developers, and forensic analysts who need deterministic results without external dependencies. The tool emphasizes correctness, explicit error handling, and clear encoding controls to minimize misinterpretation of byte data.
Unique value includes explicit support for both hex and UTF-8 inputs, deterministic key repetition, and optional outputs in base64. Use cases include verifying XOR-based encodings, testing cipher masks, and reconstructing plaintext when a known-plaintext pair is available.