[MrRadar]

A stream cipher like ChaCha20 would work. Most stream ciphers (including ChaCha20 and RC4) work by generating a pseudorandom bitstream based on the key which is then xor'd with the cleartext to produce the ciphertext. Since neither the cleartext nor the ciphertext are used to generate the pseudorandom bits any individual bit flip in the ciphertext will only result in that bit being flipped in the cleartext, the same as if the data were not encrypted.