如何給網站添加註冊碼

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宸ュ叿/鏉愭枡
鐢佃剳

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㈡ 請問怎麼給軟體加註冊驗證

要實現軟體注冊功能，首先需要知道實現注冊機制要涉及到的幾個問題：1、如何加入注冊檢測，判斷軟體是否注冊；2、如何生成注冊碼，如何保證一個用戶名只生成與之唯一對應的注冊碼；3、在軟體不注冊情況下，如何限制軟體功能的局限性；4、對已經負費使用用戶而言，不應造成使用不便。

首先，應該有一個生成注冊碼的演算法，以下是我簡單的一個生成15位注冊碼的演算法：
//該函數返回一個CSTRING類型的15位注冊碼，入口參數為用戶名
CString GetRegPasswd(CString &DirName)
{
//將用戶名換算成15位注冊碼
long Num1,Num2,Num3;

char sn[16]={0};
CString p;
int i,len;

Num1=0;
Num2=0;
Num3=0;

len=int(strlen(DirName));
if(len!=0)
{
for( i=1;i<=len;i++)
{
//第一步演算法
Num1=(long(Num1+(int(DirName[i-1])*i*i)*(i*sqrt(DirName[i-1])+1)))%100000;
//第二步演算法
Num2=(Num2*i+(long(pow((int)DirName[i-1],2)*i)))%100000;
//第三步演算法
Num3=(Num2+(long)sqrt(Num1))%100000;
}
//以下把三個演算法結果分別生成5個字元，共有15個
for(i=0;i<5;i++)
sn[i]=(int)(Num1+31+i*i*i)%128;
for(i=5;i<10;i++)
sn[i]=(int)(Num2+31+i*i*i)%128;
for(i=10;i<15;i++)
sn[i]=(int)(Num3+31+i*i*i)%128;
sn[15]=0;
//以下循環把所有生成的字元轉換為0---9，A---Z，a----z
for(i=0;i<15;i++)
{
while((sn[i]<'0' || sn[i]>'9') && (sn[i]<'A' || sn[i]>'Z') &&(sn[i]<'a' || sn[i]>'z') )
{
sn[i]=(sn[i]+31+7*i)%128;
}
}
//賦值給一個CSTRING變數，用做函數返回值
p.Format("%s",sn);
}
return p;
}
//檢查軟體是否注冊的函數

BOOL GetRegFlag(void)
{
HKEY hKey = NULL;
BYTE i;

CString str;
str.LoadString(IDS_REG_KEY);// IDS_REG_KEY為在注冊表中的子目錄字元串

if (RegCreateKey(HKEY_CURRENT_USER, str, &hKey) != ERROR_SUCCESS) return false;

DWORD cbA;
cbA=sizeof(int);
if( RegQueryValueEx(hKey, "SzMima",NULL,NULL, &i,&cbA) != ERROR_SUCCESS)
return false;

BYTE j=i;
if(j==0)//0代表軟體已經注冊，可以正常使用
{
RegCloseKey(hKey);
return true;
}
else
{
RegCloseKey(hKey);
return false;
}

return false;
};
//設置軟體已經注冊標志的函數

BOOL SetRegFlag(void)
{
HKEY hKey = NULL;
BYTE i;

CString str;
str.LoadString(IDS_REG_KEY);// IDS_REG_KEY為在注冊表中的子目錄字元串

if (RegCreateKey(HKEY_CURRENT_USER, str, &hKey) != ERROR_SUCCESS) return false;

BYTE j=0;//0代表已經注冊
if(RegSetValueEx(hKey, "SzMima", 0, REG_BINARY, &j,4) != ERROR_SUCCESS)
{
AfxMessageBox("設置注冊表數據失敗!");
return FALSE;
}
return false;
};
以上三個函數即可實現軟體注冊機制，只需要在程序初始化的時候加入以下幾句代碼即可
BOOL bReg= GetRegFlag ();
if(!bReg)
{
//在此加入限制功能或者拒絕是使用的代碼
}
如果用戶注冊只需要加入以下代碼即可
//這是我的程序中的一個注冊界面，輸入用戶名和注冊碼提交後檢驗注冊碼是否正確的代碼
void CRegEdit::OnBnClickedOk()
{
if(!UpdateData()) return;//取得編輯框的內容，並賦值到類變數中

m_RegUser.TrimLeft();//m_RegUser是用戶名
m_RegUser.TrimRight();
if(m_RegUser.IsEmpty())
{
AfxMessageBox("用戶名不能為空，請重新輸入。");
GetDlgItem(IDC_REGUSER)->SetFocus();
return;
}
m_RegPasswd.TrimLeft();m_RegPasswd是注冊碼
m_RegPasswd.TrimRight();
if(m_RegPasswd.IsEmpty())
{
AfxMessageBox("注冊碼不能為空，請重新輸入。");
GetDlgItem(IDC_REGPASSWD)->SetFocus();
return;
}
CString Passwd;
Passwd=GetRegPasswd(m_RegUser);//調用演算法取得該用戶名的注冊碼
if(Passwd==m_RegPasswd)//與用戶輸入的注冊進行比較
{
SetRegFlag();//設置注冊標志
OnOK();
}
else
AfxMessageBox("注冊碼錯誤，請重新輸入。");
UpdateData(false);
}

RSA做軟體的注冊功能，如果密鑰設置的比較大位數的話，基本別人是無法寫出注冊機的，但是防止別人暴破你的程序又是另一回事了。
Imports System.Security.Cryptography
Imports System.Text
Imports System.IO
Imports System.Xml

Public Class FrmReg
Inherits System.Windows.Forms.Form

'Dim xmlKeys As String 'A combination of both the public and 'private keys
'Dim xmlPublicKey As String 'The public key only
''The plaintext message in a byte array
'Dim PlainTextBArray As Byte()
''The cyphertext message in a byte array
'Dim CypherTextBArray As Byte()

#Region " Windows 窗體設計器生成的代碼 "

Public Sub New()
MyBase.New()

'該調用是 Windows 窗體設計器所必需的。
InitializeComponent()

'在 InitializeComponent() 調用之後添加任何初始化

End Sub

'窗體重寫 dispose 以清理組件列表。
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub

'Windows 窗體設計器所必需的
Private components As System.ComponentModel.IContainer

'注意: 以下過程是 Windows 窗體設計器所必需的
'可以使用 Windows 窗體設計器修改此過程。
'不要使用代碼編輯器修改它。
Friend WithEvents btnReg As System.Windows.Forms.Button
Friend WithEvents btnexit As System.Windows.Forms.Button
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents txtRegCode As System.Windows.Forms.TextBox
Friend WithEvents txtRegName As System.Windows.Forms.TextBox
Friend WithEvents LinkLabel1 As System.Windows.Forms.LinkLabel
Private Sub InitializeComponent()
Me.btnReg = New System.Windows.Forms.Button
Me.btnexit = New System.Windows.Forms.Button
Me.txtRegName = New System.Windows.Forms.TextBox
Me.Label1 = New System.Windows.Forms.Label
Me.Label2 = New System.Windows.Forms.Label
Me.txtRegCode = New System.Windows.Forms.TextBox
Me.LinkLabel1 = New System.Windows.Forms.LinkLabel
Me.SuspendLayout()
'
'btnReg
'
Me.btnReg.FlatStyle = System.Windows.Forms.FlatStyle.Flat
Me.btnReg.Location = New System.Drawing.Point(64, 192)
Me.btnReg.Name = "btnReg"
Me.btnReg.Size = New System.Drawing.Size(75, 24)
Me.btnReg.TabIndex = 0
Me.btnReg.Text = "注冊(&R)"
'
'btnexit
'
Me.btnexit.FlatStyle = System.Windows.Forms.FlatStyle.Flat
Me.btnexit.Location = New System.Drawing.Point(168, 192)
Me.btnexit.Name = "btnexit"
Me.btnexit.Size = New System.Drawing.Size(75, 24)
Me.btnexit.TabIndex = 1
Me.btnexit.Text = "取消(&C)"
'
'txtRegName
'
Me.txtRegName.Location = New System.Drawing.Point(8, 24)
Me.txtRegName.Name = "txtRegName"
Me.txtRegName.Size = New System.Drawing.Size(296, 21)
Me.txtRegName.TabIndex = 2
Me.txtRegName.Text = ""
'
'Label1
'
Me.Label1.Location = New System.Drawing.Point(8, 0)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(48, 16)
Me.Label1.TabIndex = 3
Me.Label1.Text = "注冊名:"
'
'Label2
'
Me.Label2.Location = New System.Drawing.Point(8, 56)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(56, 16)
Me.Label2.TabIndex = 4
Me.Label2.Text = "注冊碼:"
'
'txtRegCode
'
Me.txtRegCode.Location = New System.Drawing.Point(8, 80)
Me.txtRegCode.Multiline = True
Me.txtRegCode.Name = "txtRegCode"
Me.txtRegCode.Size = New System.Drawing.Size(296, 104)
Me.txtRegCode.TabIndex = 5
Me.txtRegCode.Text = ""
'
'LinkLabel1
'
Me.LinkLabel1.Location = New System.Drawing.Point(128, 56)
Me.LinkLabel1.Name = "LinkLabel1"
Me.LinkLabel1.Size = New System.Drawing.Size(128, 16)
Me.LinkLabel1.TabIndex = 6
Me.LinkLabel1.TabStop = True
Me.LinkLabel1.Text = "http://Testbug.Net"
'
'FrmReg
'
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
Me.ClientSize = New System.Drawing.Size(306, 223)
Me.Controls.Add(Me.LinkLabel1)
Me.Controls.Add(Me.txtRegCode)
Me.Controls.Add(Me.txtRegName)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.btnexit)
Me.Controls.Add(Me.btnReg)
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
Me.MaximizeBox = False
Me.Name = "FrmReg"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "RSA&MD5注冊例子程序 by www.TestBug.net"
Me.TopMost = True
Me.ResumeLayout(False)

End Sub

#End Region

Private Sub btnexit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnexit.Click
Application.Exit()
End Sub

Private Sub btnReg_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReg.Click
If txtRegName.Text = "" Then
MessageBox.Show("注冊名不能為空", "提示")
Return
Else
If txtRegCode.Text = "" Then
MessageBox.Show("注冊碼不能為空", "提示")
Return
Else
If txtRegCode.Text.Length <> 172 Then
MessageBox.Show("注冊碼長度不對", "提示")
Return
End If
End If
End If
Try
Dim RSA As System.Security.Cryptography.RSACryptoServiceProvider = New System.Security.Cryptography.RSACryptoServiceProvider
'公鑰
RSA.FromXmlString("xzALwAOqEcj8jWrKXyaecAhyz9W+++Faaw/=AQAB")
Dim RSADeformatter As System.Security.Cryptography.RSAPKCS1SignatureDeformatter = New System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA)
'指定解密的時候HASH演算法為MD5
RSADeformatter.SetHashAlgorithm("MD5")
Dim Regcode As Byte() = Convert.FromBase64String(txtRegCode.Text)
Dim RegName As Byte() = (New System.Text.ASCIIEncoding).GetBytes(txtRegName.Text)
Dim dataToHash As Byte() = (New System.Text.ASCIIEncoding).GetBytes(txtRegName.Text)
Dim hash As Byte() = CType(System.Security.Cryptography.CryptoConfig.CreateFromName("MD5"), System.Security.Cryptography.HashAlgorithm).ComputeHash(dataToHash)
'驗證簽名
If RSADeformatter.VerifySignature(hash, Regcode) Then
'注冊通過的話就寫入注冊文件
Dim textWriter As XmlTextWriter = New XmlTextWriter("reg.xml", Nothing)
textWriter.WriteStartElement("RegInfo")
textWriter.WriteStartElement("RegName")
textWriter.WriteString(txtRegName.Text)
textWriter.WriteEndElement()
textWriter.WriteStartElement("RegCode")
textWriter.WriteString(txtRegCode.Text)
textWriter.WriteEndElement()
textWriter.Close()
MessageBox.Show("注冊正確,謝謝注冊本軟體,請重新啟動程序完成注冊", "提示")
Application.Exit()
Else
MessageBox.Show("錯誤的注冊碼", "提示")
End If
Catch ex As Exception
'MessageBox.Show(ex.Message())
MessageBox.Show("錯誤的注冊碼", "提示")
End Try
End Sub

Private Sub FrmReg_Closed(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Closed
Application.Exit()
End Sub

Private Sub LinkLabel1_LinkClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel1.LinkClicked
System.Diagnostics.Process.Start("http://testbug.net")
End Sub
End Class

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5銆佸湪璺寵漿欏甸潰閫夋嫨鈥滀紒涓氬彉鏇寸櫥璁扮敵璇封濓紝榪涘叆涓嬩竴姝ャ
6銆佸彉鏇村墠錛屽厛鏌ラ槄鍔炵悊澧炶祫鍙樻洿鎵闇鎻愪氦鐨勬潗鏂欐竻鍗曞拰瑕佹眰銆
7銆佸湪璺寵漿欏甸潰錛岄夋嫨鍏蜂綋鍙樻洿鐨勪簨欏癸紝榪欓噷閫夋嫨鈥滄敞鍐岃祫鏈錛堥噾錛夊彉鏇粹滐紝鐐瑰嚮涓嬫柟榪涘叆鈥濅笅涓姝モ溿
8銆佺『璁ら渶瑕佸彉鏇寸殑淇℃伅銆