RC4 Encryption & Decryption
Securely encrypt or decrypt your data using the RC4 (Rivest Cipher 4) stream cipher algorithm.
Understanding RC4 Cipher
What is RC4?
RC4 (Rivest Cipher 4) is a symmetric stream cipher. While it is notable for its simplicity and speed in software, multiple vulnerabilities have been discovered in it, making it less secure for modern high-security requirements.
How it Works
RC4 generates a pseudorandom stream of bits (a keystream). As with any stream cipher, these can be used for encryption by combining it with the plaintext using bit-wise exclusive-or (XOR).
Legacy Use: RC4 was once widely used in protocols such as WEP and TLS, but its use is now discouraged in favor of more secure algorithms like AES-GCM or ChaCha20.