VB 加密与解密的程序代码

加密：

Private Function JiaMi(ByVal varPass As String) As String '参数varPass是需要加密的文本内容

Dim varJiaMi As String * 20

Dim varTmp As Double

Dim strJiaMi As String

Dim I

For I = 1 To Len(varPass)

varTmp = AscW(Mid$(varPass, I, 1))

varJiaMi = Str$(((((varTmp * 1.5) / 5.6) * 2.7) * I))

strJiaMi = strJiaMi &varJiaMi

Next I

JiaMi = strJiaMi

End Function

解密函数：

Private Function JieMi(ByVal varPass As String) As String '参数varPass是需要解密的密文内容

Dim varReturn As String * 20

Dim varConvert As Double

Dim varFinalPass As String

Dim varKey As Integer

Dim varPasslenth As Long

varPasslenth = Len(varPass)

For I = 1 To varPasslenth / 20

varReturn = Mid(varPass, (I - 1) * 20 + 1, 20)

varConvert = Val(Trim(varReturn))

varConvert = ((((varConvert / 1.5) * 5.6) / 2.7) / I)

varFinalPass = varFinalPass &ChrW(Val(varConvert))

Next I

JieMi = varFinalPass

End Function

扩展资料：

注意事项

编写加密程序，将用户输入的一个英文句子加密为加密字符串，然后输出加密字符串。假设句子长度不超过100个字符。

根据给定的句子加密函数原型SentenceEncoding，编写函数SentenceEncoding调用给定的字符加密函数CharEncoding完成句子加密。

然后，编写主程序提示用户输入英文句子，然后调用函数SentenceEncoding对句子加密，最后输出加密后的句子。

字符加密规则为大写蔽铅字母和改禅小写字母均加密为其补码, 我们定义ASCII码值相加为’A’+’Z’即155的两个大写字母互为补码，ASCII码值相加为’a’+’z’即219的两个小写字母互为补码。

空格用@代替,句号以#代替,其它字符用句点代宏歼好替。

函数原型：

void SentenceEncoding(char *soure,char *code)

功能：对待加密字符串source加密后保存加密字符串到code.

参数：char *soure，指向待加密句子的字符串指针；

char *code 指向加密字符串的字符串指针；

字符加密函数代码。

'图上的控件团瞎,你就照着摆上去,然后再宏友把以下代码拷进去,就OK了

Dim lg As Integer

'加密

Private Sub Command1_Click()

Text2 = ""

Dim a(), b() As String

lg = Len(Text1)

ReDim a(lg), b(lg)

For i = 1 To lg

a(i) = Mid(Text1, i, 1)

b(i) = AscW(a(i)) Xor 4

Text2 = Text2 &ChrW(b(i))

Next

End Sub

'解密

Private Sub Command2_Click()

Text3 = "蔽或槐"

Dim a(), b() As String

lg = Len(Text2)

ReDim a(lg), b(lg)

For i = 1 To lg

a(i) = Mid(Text2, i, 1)

b(i) = AscW(a(i)) Xor 4

Text3 = Text3 &ChrW(b(i))

Next

End Sub

另一个锋大程序中的代码

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As String) As Long

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA"培基局 (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long

Private Sub Command2_Click()

Dim hwnd As Long, t As Long, s As String * 100‘声明变量hwnd、t为长整形，s为 100个字符的字符型变量，把句柄保存在hwnd中

hwnd = FindWindow(vbNullString, "HJonny")'寻找名为HJonny的窗体标题，这里就比如你的第一个密码程序。

t = FindWindowEx(hwnd, 0, "ThunderRT6TextBox", vbNullString)'这个是寻找其中的一个文本框，也就是迷得密码框的句柄，保存在t中

SendMessage t, 13, 100, s'sendmassage取t句柄，也就是你的密码框中的文本内容。

MsgBox s'配让d出提示

End Sub

自己写不复制，人品好，希望能帮到你

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