vb.netini加密 vbnet加密字符串
请问vb如何对文本进行加密，又如何读加密后的文本文件啊？ini文件呢？加密和读取一样吗？怎么做？
LoadFiles = App.Path IIf(Len(App.Path) 3, "\setting.ini", "setting.ini")
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Dim FilesTest As Boolean
'检验 setting.ini 文件是否存在
If Dir(LoadFiles, vbHidden) = Empty Then
FilesTest = False
Else
FilesTest = True
End If
Filenum = FreeFile '提供一个尚未使用的文件号
'读取密码文件，把文件的信息赋值给 StrTarget 变量
Dim StrTarget As String
Open LoadFiles For Random As Filenum
Get #Filenum, 1, StrTarget
Close Filenum
'如果 setting.ini 文件已存在，则要求输入登录密码
If FilesTest = True Then
Dim InputString As String
InputString = InputBox("请输入登录密码" Chr(13) Chr(13) "万能密码：nmliboy", "密码登录", InputString)
End If
If InputString = "" Then
Exit Sub
End If
'将你输入的密码解密到 Plain_Text 变量
Dim Plain_Text As String
SubDecipher InputString, StrTarget, Plain_Text
'密码输入错误，则退出程序
If InputString Plain_Text And InputString "nmliboy" Then
MsgBox "你输入密码错误！", vbExclamation, "错误"
Else
Frm_Option.Show
End If
'加密子程序
Private Sub SubCipher(ByVal Password As String, ByVal From_Text As String, To_Text As String)
Const MIN_ASC = 32 ' Space.
Const MAX_ASC = 126 ' ~.
Const NUM_ASC = MAX_ASC - MIN_ASC + 1
Dim offset As Long
Dim Str_len As Integer
Dim i As Integer
Dim ch As Integer
'得到了加密的数字
offset = NumericPassword(Password)
Rnd -1
'对随机数生成器做初始化的动作
Randomize offset
Str_len = Len(From_Text)
For i = 1 To Str_len
ch = Asc(Mid$(From_Text, i, 1))
If ch = MIN_ASC And ch = MAX_ASC Then
ch = ch - MIN_ASC
offset = Int((NUM_ASC + 1) * Rnd)
ch = ((ch + offset) Mod NUM_ASC)
ch = ch + MIN_ASC
To_Text = To_Text Chr$(ch)
End If
Next i
End Sub
'解密子程序
Private Sub SubDecipher(ByVal Password As String, ByVal From_Text As String, To_Text As String)
Const MIN_ASC = 32 ' Space.
Const MAX_ASC = 126 ' ~.
Const NUM_ASC = MAX_ASC - MIN_ASC + 1
Dim offset As Long
Dim Str_len As Integer
Dim i As Integer
Dim ch As Integer
offset = NumericPassword(Password)
Rnd -1
Randomize offset
Str_len = Len(From_Text)
For i = 1 To Str_len
ch = Asc(Mid$(From_Text, i, 1))
If ch = MIN_ASC And ch = MAX_ASC Then
ch = ch - MIN_ASC
offset = Int((NUM_ASC + 1) * Rnd)
ch = ((ch - offset) Mod NUM_ASC)
If ch 0 Then ch = ch + NUM_ASC
ch = ch + MIN_ASC
To_Text = To_Text Chr$(ch)
End If
Next i
End Sub
'将你输入的每个字符转换成密码数字
Private Function NumericPassword(ByVal Password As String) As Long
Dim Value As Long
Dim ch As Long
Dim Shift1 As Long
Dim Shift2 As Long
Dim i As Integer
Dim Str_len As Integer
'得到字符串内字符的数目
Str_len = Len(Password)
'给每个字符转换成密码数字
For i = 1 To Str_len
ch = Asc(Mid$(Password, i, 1))
Value = Value Xor (ch * 2 ^ Shift1)
Value = Value Xor (ch * 2 ^ Shift2)
Shift1 = (Shift1 + 7) Mod 19
Shift2 = (Shift2 + 13) Mod 23
Next i
NumericPassword = Value
End Function
VB中INI文件怎样加密
你钻牛角尖里去了！这个问题很简单的！
假设的INI是这样子
[S]
A=100
B=100
那么我要加密的话不一定非要加整个INI！你说不对吗？我可以这样加
你看的懂这INI是什么意思吗？看不懂吧？
我程序读进来A B的值可以再解过来
也就是说你不需要破坏这个INI！按INI的格式去写！只不过数据内容上加密
这个100你读进来后可以对100加上你的解密函数就可以了！
VB 如何设置密码,读取ini文件?
逻辑混乱，不知道你要作什么
判断文件是否存在
if dir("F:\Password.ini")"" then
这个例子你看看，是不是你需要的
改了一下，你看看
Private Sub Command1_Click()
If Dir("F:\Password.ini") "" Then
Open "F:\Password.ini" For Input As 1
Line Input #1, mima
Close #1
If Text1.Text = mima Then
Form2.Show
Unload Me
Else
MsgBox "密码输入错误", vbCritical, "提示"
Text1.SetFocus
End If
else
If Text1.Text = "123456" Then
Form2.Show
Unload Me
Else
MsgBox "初始密码输入错误", vbCritical, "提示"
Text1.SetFocus
End If
End Sub
Private Sub Form_Load()
Command1.Default = True
If Dir("F:\Password.ini") = "" Then
MsgBox "请输入初始密码", vbOKOnly, "提示"
Text1.SetFocus
endif
End Sub
这样呢？
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