国密2给软件加密注册机怎么 *** 作

具体 *** 作步骤如下：

1、使用加密工具生成公钥和私钥，并将公钥嵌入到软件中。

2、使用加密工具对软件进行加密，生成加密后的程序。

3、开发注册机程序，生成注册码，并将注册码嵌入到软件中。

4、将加密后的程序和注册机程序打包发布，用户可以通过注册机进行激活，获得软件的使用权限。

这里使用的是按位加密，按ASCII码进行加密的算法自己写个，很容易的。

#include<stdioh>

#include<stdlibh>

#include<conioh>

#include<stringh>

void

dofile(char

in_fname,char

pwd,char

out_fname);/对文件进行加密的具体函数/

void

usage(char

name);

void

main(int

argc,char

argv[])/定义main()函数的命令行参数/

{

char

in_fname[30];/用户输入的要加密的文件名/

char

out_fname[30];

char

pwd[10];/用来保存密码/

if(argc!=4)

{/容错处理/

usage(argv[0]);

printf("\nIn-fname:\n");

gets(in_fname);/得到要加密的文件名/

while(in_fname==NULL)

{

printf("\nIn-fname:\n");

gets(in_fname);

}

printf("Password

6-8:\n");

gets(pwd);/得到密码/

while(pwd==NULL

||

strlen(pwd)>8

||

strlen(pwd)<6)

{

printf("Password

6-8:\n");

gets(pwd);

}

printf("Out-file:\n");

gets(out_fname);/得到加密后你要的文件名/

while(in_fname==NULL)

{

printf("Out-file:\n");

gets(out_fname);

}

while(!strcmp(in_fname,out_fname))

{

printf("文件名不能和源文件相同\n");

printf("Out-file:\n");

gets(out_fname);

}

dofile(in_fname,pwd,out_fname);

printf("加密成功，解密请再次运行程序\n");

}

else

{/如果命令行参数正确,便直接运行程序/

strcpy(in_fname,argv[1]);

strcpy(pwd,argv[2]);

strcpy(out_fname,argv[3]);

while(pwd==NULL

||

strlen(pwd)>8

||

strlen(pwd)<6)

{

printf("Password

faied!\n");

printf("Password

6-8:\n");

gets(pwd);

}

while(!strcmp(in_fname,out_fname))

{

printf("文件名不能和源文件相同\n");

printf("Out-file:\n");

gets(out_fname);

while(in_fname==NULL)

{

printf("Out-file:\n");

gets(out_fname);

}

}

dofile(in_fname,pwd,out_fname);

printf("加密成功，解密请再次运行程序\n");

}

}

/加密子函数开始/

void

dofile(char

in_fname,char

pwd,char

out_file)

{

FILE

fp1,fp2;

register

char

ch;

int

j=0;

int

j0=strlen(pwd);

fp1=fopen(in_fname,"rb");

if(fp1==NULL)

{

printf("cannot

open

in-file\n");

exit(1);/如果不能打开要加密的文件,便退出程序/

}

fp2=fopen(out_file,"wb");

if(fp2==NULL)

{

printf("cannot

open

or

create

out-file\n");

exit(1);/如果不能建立加密后的文件,便退出/

}

/加密算法开始/

while(j0>=0)

{

ch=fgetc(fp1);

while(!feof(fp1))

{

fputc(ch^pwd[j>=j0j=0:j++],fp2);/异或后写入fp2文件/

ch=fgetc(fp1);

}

j0--;

}

fclose(fp1);/关闭源文件/

fclose(fp2);/关闭目标文件/

}

void

usage(char

name)

{

printf("\t=======================File

encryption======================\n");

printf("\tusage:

%s

In-fname

password

out_fname\n",name);

printf("\tExample:

%s

file1txt

12345678

file2txt\n",name);

}

有单表替换加密解密c语言程序希望对你能有所帮助

#include<stdioh>

char a[100];

char d[]={"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"};

void encryption();

void decryption();

void encryption()

{int i,j;

char b[100];

printf("please input a plaintext:\n");

gets(b);

printf("the ciphertext is:\n");

for(i=0;i<100;i++)

{if(b[i]==' ')

printf("%c",b[i]);

else if(b[i]!='\0')

{for(j=0;j<53;j++)

{if(d[j]==b[i])

printf("%c",a[j]);

}

}

else

break;}

printf("\n");

}

void decryption()

{char c[100];

int i,j,k;

printf("please input the ciphertext:\n");

gets(c);

printf("the plaintext is:\n");

for(i=0;i<100;i++)

{if(c[i]==' ')

printf("%c",c[i]);

else if(c[i]!='\0')

for(j=0;j<27;j++)

{if(a[j]==c[i])

{k=j+97;

printf("%c",k);

}

}

else break;

}

printf("\n");

}

void main()

{int i;

printf("please input 26 letters to form a key:\n");

scanf("%s",a);

list:printf("please choose a function:1encryption 2decryption 3exit\n");

scanf("%d",&i);

getchar();

switch(i){

case 1:encryption();

goto list;break;

case 2:decryption();

goto list;break;

case 3:exit(1);

}

}

using System;

using SystemCollectionsGeneric;

using SystemIO;

using SystemLinq;

using SystemText;

namespace baidu

{

class temp

{

public static void main()

{

//string s = "cn9sky888";

FileStream fs = new FileStream("Passwordtxt", FileMode Open );

StreamReader sr = new StreamReader(fs);

if (FileExists("PasswordMd5txt"))

{

FileDelete("PasswordMd5txt");

}

FileStream fs2 = new FileStream("PasswordMd5txt",FileMode OpenOrCreate );

StreamWriter sw = new StreamWriter(fs2);

string temp = "";

int count = 0;

while(!srEndOfStream )

{

temp = srReadLine();

swWriteLine(temp + "\t" + tempMd5Bit16() + "\t" + tempMd5Bit32());

count++ Show ();

}

}

}

public static class MyExtensions

{

public static string CharToString(this char[] temp)

{

string s = "";

for (int i = 0; i < tempLength; i++)

{

s += temp[i]ToString();

}

return s;

}

#region//string

public static string sort(this string temp)

{

return tempToint()sort()Tochararray()CharToString();

}

public static int[] ToIntArray(this string temp, string spliter)

{

string[] temp2 = tempSplit(spliterToCharArray());

List<int> ls = new List<int>();

for (int i = 0; i < temp2Length; i++)

{

lsAdd(temp2[i]ToInt());

}

return lsToArray();

}

public static int ToInt(this string temp)

{

return intParse(temp);

}

public static int[] Toint(this string temp)

{

List<int> ls = new List<int>();

for (int i = 0; i < tempLength; i++)

{

lsAdd((int)temp[i]);

}

return lsToArray();

}

public static byte ToTinyInt(this string temp)

{

return ConvertToByte(temp);

}

public static int CountNum(this string temp)

{

int sum = 0;

for (int i = 0; i < tempLength; i++)

{

if ((int)temp[i] >= 48 && (int)temp[i] <= 57)

{

sum++;

}

}

return sum;

}

public static int CountLetter(this string temp)

{

int sum = 0;

temp = tempToUpper();

for (int i = 0; i < tempLength; i++)

{

if ((int)temp[i] >= 65 && (int)temp[i] <= 90)

{

sum++;

}

}

return sum;

}

public static int CountOther(this string temp)

{

return tempLength - tempCountLetter() - tempCountNum();

}

public static string Md5Bit32(this string temp)

{

string strResult = "";

string strHashData = "";

byte[] arrbytHashValue;

SystemSecurityCryptographyMD5CryptoServiceProvider oMD5Hasher = new SystemSecurityCryptographyMD5CryptoServiceProvider();

try

{

arrbytHashValue = oMD5HasherComputeHash(SystemTextEncodingDefaultGetBytes(temp));

//oMD5Hasher ComputeHash (

//由以连字符分隔的十六进制对构成的String，其中每一对表示value 中对应的元素；例如“F-2C-4A”

strHashData = SystemBitConverterToString(arrbytHashValue);

//替换-

strHashData = strHashDataReplace("-", "");

strResult = strHashData;

}

catch (SystemException ex)

{

ConsoleWriteLine(exMessage);

}

return strResult;

}

public static string Md5Bit16(this string temp)

{

return tempMd5Bit32()Substring(8, 16);

}

#endregion

#region//int

public static int[] sort(this int[] temp)

{

List<int> ls;

ls = tempToList();

lsSort();

return lsToArray();

}

public static char[] Tochararray(this int[] temp)

{

List<char> ls = new List<char>();

for (int i = 0; i < tempLength; i++)

{

lsAdd((char)temp[i]);

}

return lsToArray();

}

public static int[] Remove(this int[] temp, int tmp)

{

List<int> ls = new List<int>();

ls = tempToList();

lsRemove(tmp);

return lsToArray();

}

public static int[] RemoveAt(this int[] temp, int index)

{

List<int> ls = new List<int>();

ls = tempToList();

lsRemoveAt(index);

return lsToArray();

}

public static int find(this int[] temp, int tmp)

{

return tempToList()IndexOf(tmp);

}

public static int[] insert(this int[] temp, int index, int tmp)

{

temp = tempRemoveAt(index);

List<int> ls = new List<int>();

ls = tempToList();

lsInsert(index, tmp);

return lsToArray();

}

#endregion

#region//init()

public static int[,] init(this int[,] temp)

{

Random rm = new Random();

int rank = tempRank;

int line = tempGetLength(0);

int row = tempLength / line;

for (int j = 0; j < line; j++)

{

for (int i = 0; i < row; i++)

{

temp[j, i] = rmNext(9);

}

}

return temp;

}

public static string init(this string s, int lenght)

{

string temp = "";

Random rm = new Random();

for (int i = 0; i < lenght; i++)

{

temp += ((char)rmNext(65, 90))ToString();

}

return temp;

}

public static int[] init(this int[] temp, int min, int max)

{

Random rm = new Random();

for (int i = 0; i < tempLength; i++)

{

Rand:

int rm2 = rmNext(min, max);

if (!tempToList()Contains(rm2))

temp[i] = rm2;

else

goto Rand;

//temp[i] = rmNext(min,max);

}

return temp;

}

public static bool IsEven(int temp)

{

if (temp % 2 == 0 && temp != 0)

return true;

else

return false;

}

public static bool IsUneven(int temp)

{

if (temp % 2 != 0 && temp != 0)

return true;

else

return false;

}

public static bool Is0(int temp)

{

if (temp == 0)

return true;

else

return false;

}

public static int[] ReturnEven(this int[] temp)

{

return tempToList()FindAll(IsEven)ToArray()sort();

}

public static int[] ReturnUneven(this int[] temp)

{

return tempToList()FindAll(IsUneven)ToArray()sort();

}

public static int[] Return0(this int[] temp)

{

return tempToList()FindAll(Is0)ToArray()sort();

}

#endregion

#region//show

public static void Show(this byte temp)

{

ConsoleWriteLine(temp);

wline();

}

public static void Show(this string temp)

{

ConsoleWriteLine(temp);

wline();

}

public static void Show(this int temp)

{

ConsoleWriteLine(temp);

wline();

}

public static void Show(this int[,] temp)

{

int rank = tempRank;

int line = tempGetLength(0);

int row = tempLength / line;

for (int j = 0; j < line; j++)

{

for (int i = 0; i < row; i++)

{

ConsoleWrite(temp[j, i] + " ");

}

ConsoleWriteLine();

}

wline();

}

public static int[] Show(this int[] temp)

{

for (int i = 0; i < tempLength; i++)

{

ConsoleWrite(temp[i] + " ");

}

ConsoleWriteLine();

wline();

return temp;

}

#endregion

public static void wline()

{

ConsoleWriteLine("-------------------------------------------------------------------");

}

}

}

#include <stdioh>

void main()

{

char str[200];

int i;

gets(str);

for(i=0;str[i]!='\0';i++)

if((str[i]>='a'&&str[i]<='x')||(str[i]>='A'&&str[i]<='X')) str[i]+=2;

else if(str[i]=='y') str[i]='a';

else if(str[i]=='z') str[i]='b';

else if(str[i]=='Y') str[i]='A';

else if(str[i]=='Z') str[i]='B';

puts(str);

}

可参考vivo手机设置软件加密的方法：

1、iQOO （Monster） UI/Funtouch OS 30及以上系统：进入设置--指纹、面部与密码 /指纹与密码/安全--隐私与应用加密，设置隐私密码密保，设置“密码”“密保”完成后点击“应用加密”，打开软件后面对应的开关，即可加密;

2、Funtouch OS 30以下系统：进入i管家--软件管理--软件锁，设置图案密码或使用数字密码，设置完成后，点击右上角的“继续”，设置完成软件密码，即可设置软件锁的密保（即安全问题），然后点击右上角的“完成”，点击软件后面对应的锁状图标，即可加密。

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