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2026-06-18

生成随机字节 - GenerateRandomBytes ​

函数简介 ​

生成指定长度和类型的随机字节字符串。

接口名称 ​

GenerateRandomBytes

DLL调用 ​

c
long GenerateRandomBytes(long instance, int length, int type);

参数说明 ​

参数名类型说明
instance长整数型OLAPlug对象的指针，由 CreateCOLAPlugInterFace 接口生成。
length整数型要生成的随机字节长度。
type整数型字符类型：0-十六进制字符(0-9A-F)；1-数字+大写字母(0-9A-Z)；2-数字+大小写字母(0-9A-Za-z)；3-可打印ASCII字符(包含特殊字符)；4-Base64字符集(A-Za-z0-9+/)。

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
string randomKey = ola.GenerateRandomBytes(16, 0);
csharp
using OLAPlug;

var ola = new OLAPlugServer();
string randomKey = ola.GenerateRandomBytes(16, 0);
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
randomKey = ola.GenerateRandomBytes(16, 0)
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
String randomKey = ola.GenerateRandomBytes(16, 0);
cpp
var ola = com("OlaPlug.OlaSoft")
var randomKey = ola.GenerateRandomBytes(16, 0)
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
randomKey = ola.GenerateRandomBytes(16, 0)
text
.局部变量 ola, OLAPlug
ola.创建 ()
randomKey ＝ ola.GenerateRandomBytes(16, 0)
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var randomKey = ola.GenerateRandomBytes(16, 0);
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
文本型 randomKey = ola.GenerateRandomBytes(16, 0)
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
std::string randomKey = ola.GenerateRandomBytes(16, 0);

原生 DLL 调用 ​

cpp
long instance = CreateCOLAPlugInterFace();
long ptr = GenerateRandomBytes(instance, 16, 0);
if (ptr != 0) {
    char buffer[4096] = {0};
    GetStringFromPtr(ptr, buffer, sizeof(buffer));
    FreeStringPtr(ptr);
}
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int GetStringFromPtr(long ptr, StringBuilder lpString, int size);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int FreeStringPtr(long ptr);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int GetStringSize(long ptr);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long GenerateRandomBytes(long ola, int length, int type);

long instance = CreateCOLAPlugInterFace();
long ptr = GenerateRandomBytes(instance, 16, 0);
if (ptr != 0) {
    StringBuilder sb = new StringBuilder(GetStringSize(ptr) + 1);
    GetStringFromPtr(ptr, sb, sb.Capacity);
    FreeStringPtr(ptr);
    string randomKey = sb.ToString();
}
python
from ctypes import CDLL, c_int, c_int64

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
instance = ola.CreateCOLAPlugInterFace()
ptr = ola.GenerateRandomBytes(instance, 16, 0)

返回值 ​

返回值说明
非 0成功，返回 随机字节字符串的指针。
0失败。

注意事项 ​

项目说明
可直接用作AES密钥可直接用作AES密钥，推荐长度：16/24/32。