NEAT RC-4L S

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Brand: NEAT

RC-4L S is a cryptographic protocol designed by Niels Ferguson, Sarah Waterson, and Roger Needham. It is a stream cipher and was originally developed in 1991 for secure data transmission over radio frequency (RF) links. The "L" in RC-4L S stands for Lightweight, indicating that it is designed to be a low-power, low-complexity algorithm suitable for use in resource-constrained devices such as RF identification (RFID) tags and sensors.RC-4L S uses a 64-bit key stream generated by a 256-bit key, and it is particularly well-suited for use in high-noise environments, where other cryptographic algorithms may be less effective due to noise interference. It is also relatively fast, making it an attractive choice for high-throughput systems.However, because RC-4L S is an older algorithm, it is not as secure as some more modern standards such as Advanced Encryption Standard (AES) or ChaCha20. Additionally, the design of RC-4L S has been criticized due to various known weaknesses, such as key-schedule attacks and IV reuse attacks, making it less practical for use in new, high-security applications. Nonetheless, RC-4L S remains a functional and widely-used algorithm in many legacy systems and applications, particularly in low-resource RF contexts.