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(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_kx_client_session_keys — Calculate the client-side session keys.
$client_key_pair, string $server_key): array
Calculate the client-side session keys, using the X25519 + BLAKE2b key-exchange method.
client_key_pair
A crypto_kx keypair, such as one generated by sodium_crypto_kx_keypair().
server_key
A crypto_kx public key.
An array consisting of two strings. The first should be used for receiving data from the server. The second should be used for sending data to the server.
