(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_aead_chacha20poly1305_keygen — Generate a random ChaCha20-Poly1305 key.
Generate a random key for use with sodium_crypto_aead_chacha20poly1305_encrypt() and sodium_crypto_aead_chacha20poly1305_decrypt().
Cette fonction ne contient aucun paramètre.
Returns a 256-bit random key.