(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_stream_xor — Encrypt a message without authentication
This function encrypts a message with XSalsa20, but does not provide any ciphertext guarantees about the plaintext.
message
The message to encrypt
nonce
A number that must be only used once, per message. 24 bytes long. This is a large enough bound to generate randomly (i.e. random_bytes()).
key
Encryption key (256-bit).
Encrypted message.