sodium_crypto_stream_xchacha20
(PHP 8 >= 8.1.0)
sodium_crypto_stream_xchacha20 — Expands the key and nonce into a keystream of pseudorandom bytes
Description
$length
, string $nonce
, string $key
): string
Expands the key
and nonce
into a keystream of pseudorandom bytes.
Parameters
-
length
-
Number of bytes desired.
-
nonce
-
24-byte nonce.
-
key
-
Key, possibly generated from sodium_crypto_stream_xchacha20_keygen().
Return Values
Returns a pseudorandom stream that can be used with sodium_crypto_stream_xchacha20_xor().