sodium_crypto_stream

Generate a deterministic sequence of bytes from a seed

Description

string sodium_crypto_stream(int $length, string $nonce, #[\SensitiveParameter]string $key)

Generate a deterministic sequence of bytes from a seed, using the XSalsa20 stream cipher.

Parameters

length

The number of bytes to return.

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).

Return Values

String of pseudorandom bytes.