5. 自定义格式
Atitit.视频文件加密的方法大的总结 java c# php
Atitit.视频文件加密的方法大的总结 java c# php
1. 加密的算法 aes 3des des xor等.1
2. 性能1
3. 解密1
4. 播放器的事件扩展1
5. 自定义格式1
1. 加密的算法 aes 3des des xor等.
Aes安全性最好...
2. 性能
可以只加密文件头走行兰..
3. 解密
文件解密 内存解密...
可以播放以前解密...播放over再加密...
作者:: 绰号:老哇的爪子 ( 全名::Attilax Akbar Al Rapanui 阿提拉克斯 阿克巴 阿尔 拉帕努伊 ) 汉字名:艾龙, EMAIL:[email protected]
转载请注明来源: http://www.cnblogs.com/attilax/
4. 播放器的事件扩展
Before_play_ready_event
Play_finish_and_unclock_file_occu_event
5. 自定义格式
自定义格式麻烦的...
package aaa;
import java.io.FileNotFoundException;
import java.io.RandomAccessFile;
import com.attilax.exception.ExUtil;
public class Encry {
public static void main(String[] args) {
String f = "C:\\00\\m2.mp4";
//f = "C:\\00\\a.txt";
encry(f);
System.out.println("--f");
}
private static void encry(String f) {
RandomAccessFile raf;
try {
raf = new RandomAccessFile(f, "rws");
for (int i = 0; i i++) { // 加密前五个字节
raf.seek(i);
int byte_cur = raf.read(); //if read seek auto next
int byte_new = byte_cur ^ 123;
raf.seek(i);
raf.write(byte_new);// 写入与123异或的值.
}
raf.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
ExUtil.throwEx(e);
}
}
}

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