ParagonIE_Sodium_File::box_encrypt( resource $ifp, resource $ofp, int $mlen, string $nonce, string $boxKeypair ): bool

837    protected static function box_encrypt($ifp, $ofp, $mlen, $nonce, $boxKeypair)838    {839        if (PHP_INT_SIZE === 4) {840            return self::secretbox_encrypt(841                $ifp,842                $ofp,843                $mlen,844                $nonce,845                ParagonIE_Sodium_Crypto32::box_beforenm(846                    ParagonIE_Sodium_Crypto32::box_secretkey($boxKeypair),847                    ParagonIE_Sodium_Crypto32::box_publickey($boxKeypair)848                )849            );850        }851        return self::secretbox_encrypt(852            $ifp,853            $ofp,854            $mlen,855            $nonce,856            ParagonIE_Sodium_Crypto::box_beforenm(857                ParagonIE_Sodium_Crypto::box_secretkey($boxKeypair),858                ParagonIE_Sodium_Crypto::box_publickey($boxKeypair)859            )860        );861    }