sodium_crypto_stream_xchacha20_xor_ic

Encrypts a message using a nonce and a secret key (no authentication).

sodium_crypto_stream_xchacha20_xor_ic Function synopsis

sodium_crypto_stream_xchacha20_xor_ic(
    string $message,
    string $nonce,
    int $counter,
    string $key
  ): string

Parameters

$message

Typestring

The message to encrypt.

$nonce

Typestring

24-byte nonce.

$counter

Typeint

The initial value of the block counter.

$key

Typestring

Key, possibly generated from sodium_crypto_stream_xchacha20_keygen.

Return value

Typestring

Encrypted message, or false on failure.