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vba怎么加密代码

发布时间:2023-10-24 14:47:42

⑴ EXCE如何用VBA代码加入启动时对所有工作表加密,并设指定密码

通过代码对excel代码进行加密即可:

1、打开您需要破解保护密码的Excel文件;

2、依次点击菜单栏上的工具---宏----录制新宏,输入宏名字如:aa;

3、停止录制(这样得到一个空宏);

4、依次点击菜单栏上的工具---宏----宏,选aa,点编辑按钮;

5、删除窗口中的所有字符(只有几个),替换为下面的内容;

Sub添加密码()
DimxAsInteger
Forx=1ToSheets.Count
Sheets(x).Protect"123"
Nextx
hisWorkbook.Protect"123"

⑵ 如何用VBA 编写MD5加密函数

'电子表格中调用方法1如 =MD5(A1,16)
'电子表格中调用方法2如 =MD5(A1,32)
'打开Excel按Alt+F11,然后点插入菜单中的模块,然后把这上面所有代码粘贴到模块1中,保存关闭即可在单元格中调用
'这些是注释,以把以下代码直接复制到使用即可。

Private Const BITS_TO_A_BYTE = 8
Private Const BYTES_TO_A_WORD = 4
Private Const BITS_TO_A_WORD = 32
Private m_lOnBits(30)
Private m_l2Power(30)

Private Function LShift(lValue, iShiftBits)

If iShiftBits = 0 Then
LShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And 1 Then
LShift = &H80000000
Else
LShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If

If (lValue And m_l2Power(31 - iShiftBits)) Then
LShift = ((lValue And m_lOnBits(31 - (iShiftBits + 1))) * m_l2Power(iShiftBits)) Or &H80000000
Else
LShift = ((lValue And m_lOnBits(31 - iShiftBits)) * m_l2Power(iShiftBits))
End If

End Function

Private Function RShift(lValue, iShiftBits)

If iShiftBits = 0 Then
RShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And &H80000000 Then
RShift = 1
Else
RShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If

RShift = (lValue And &H7FFFFFFE) \ m_l2Power(iShiftBits)

If (lValue And &H80000000) Then
RShift = (RShift Or (&H40000000 \ m_l2Power(iShiftBits - 1)))
End If

End Function

Private Function RotateLeft(lValue, iShiftBits)

RotateLeft = LShift(lValue, iShiftBits) Or RShift(lValue, (32 - iShiftBits))

End Function

Private Function AddUnsigned(lX, lY)

Dim lX4
Dim lY4
Dim lX8
Dim lY8
Dim lResult

lX8 = lX And &H80000000
lY8 = lY And &H80000000
lX4 = lX And &H40000000
lY4 = lY And &H40000000

lResult = (lX And &H3FFFFFFF) + (lY And &H3FFFFFFF)

If lX4 And lY4 Then
lResult = lResult Xor &H80000000 Xor lX8 Xor lY8
ElseIf lX4 Or lY4 Then
If lResult And &H40000000 Then
lResult = lResult Xor &HC0000000 Xor lX8 Xor lY8
Else
lResult = lResult Xor &H40000000 Xor lX8 Xor lY8
End If
Else
lResult = lResult Xor lX8 Xor lY8
End If
AddUnsigned = lResult

End Function

Private Function md5_F(x, y, z)

md5_F = (x And y) Or ((Not x) And z)

End Function

Private Function md5_G(x, y, z)

md5_G = (x And z) Or (y And (Not z))

End Function

Private Function md5_H(x, y, z)

md5_H = (x Xor y Xor z)

End Function

Private Function md5_I(x, y, z)

md5_I = (y Xor (x Or (Not z)))

End Function

Private Sub md5_FF(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_F(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)

End Sub

Private Sub md5_GG(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_G(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)

End Sub

Private Sub md5_HH(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_H(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)

End Sub

Private Sub md5_II(a, b, c, d, x, s, ac)

a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_I(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)

End Sub

Private Function ConvertToWordArray(sMessage)

Dim lMessageLength
Dim lNumberOfWords
Dim lWordArray()
Dim lBytePosition
Dim lByteCount
Dim lWordCount

Const MODULUS_BITS = 512
Const CONGRUENT_BITS = 448

lMessageLength = Len(sMessage)

lNumberOfWords = (((lMessageLength + ((MODULUS_BITS - CONGRUENT_BITS) \ BITS_TO_A_BYTE)) \ (MODULUS_BITS \ BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS \ BITS_TO_A_WORD)
ReDim lWordArray(lNumberOfWords - 1)

lBytePosition = 0
lByteCount = 0

Do Until lByteCount >= lMessageLength
lWordCount = lByteCount \ BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE
lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(Asc(Mid(sMessage, lByteCount + 1, 1)), lBytePosition)
lByteCount = lByteCount + 1
Loop

lWordCount = lByteCount \ BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE

lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(&H80, lBytePosition)

lWordArray(lNumberOfWords - 2) = LShift(lMessageLength, 3)
lWordArray(lNumberOfWords - 1) = RShift(lMessageLength, 29)

ConvertToWordArray = lWordArray

End Function

Private Function WordToHex(lValue)

Dim lByte
Dim lCount

For lCount = 0 To 3
lByte = RShift(lValue, lCount * BITS_TO_A_BYTE) And m_lOnBits(BITS_TO_A_BYTE - 1)
WordToHex = WordToHex & Right("0" & Hex(lByte), 2)
Next

End Function

Public Function MD5(sMessage, stype)

m_lOnBits(0) = CLng(1)
m_lOnBits(1) = CLng(3)
m_lOnBits(2) = CLng(7)
m_lOnBits(3) = CLng(15)
m_lOnBits(4) = CLng(31)
m_lOnBits(5) = CLng(63)
m_lOnBits(6) = CLng(127)
m_lOnBits(7) = CLng(255)
m_lOnBits(8) = CLng(511)
m_lOnBits(9) = CLng(1023)
m_lOnBits(10) = CLng(2047)
m_lOnBits(11) = CLng(4095)
m_lOnBits(12) = CLng(8191)
m_lOnBits(13) = CLng(16383)
m_lOnBits(14) = CLng(32767)
m_lOnBits(15) = CLng(65535)
m_lOnBits(16) = CLng(131071)
m_lOnBits(17) = CLng(262143)
m_lOnBits(18) = CLng(524287)
m_lOnBits(19) = CLng(1048575)
m_lOnBits(20) = CLng(2097151)
m_lOnBits(21) = CLng(4194303)
m_lOnBits(22) = CLng(8388607)
m_lOnBits(23) = CLng(16777215)
m_lOnBits(24) = CLng(33554431)
m_lOnBits(25) = CLng(67108863)
m_lOnBits(26) = CLng(134217727)
m_lOnBits(27) = CLng(268435455)
m_lOnBits(28) = CLng(536870911)
m_lOnBits(29) = CLng(1073741823)
m_lOnBits(30) = CLng(2147483647)

m_l2Power(0) = CLng(1)
m_l2Power(1) = CLng(2)
m_l2Power(2) = CLng(4)
m_l2Power(3) = CLng(8)
m_l2Power(4) = CLng(16)
m_l2Power(5) = CLng(32)
m_l2Power(6) = CLng(64)
m_l2Power(7) = CLng(128)
m_l2Power(8) = CLng(256)
m_l2Power(9) = CLng(512)
m_l2Power(10) = CLng(1024)
m_l2Power(11) = CLng(2048)
m_l2Power(12) = CLng(4096)
m_l2Power(13) = CLng(8192)
m_l2Power(14) = CLng(16384)
m_l2Power(15) = CLng(32768)
m_l2Power(16) = CLng(65536)
m_l2Power(17) = CLng(131072)
m_l2Power(18) = CLng(262144)
m_l2Power(19) = CLng(524288)
m_l2Power(20) = CLng(1048576)
m_l2Power(21) = CLng(2097152)
m_l2Power(22) = CLng(4194304)
m_l2Power(23) = CLng(8388608)
m_l2Power(24) = CLng(16777216)
m_l2Power(25) = CLng(33554432)
m_l2Power(26) = CLng(67108864)
m_l2Power(27) = CLng(134217728)
m_l2Power(28) = CLng(268435456)
m_l2Power(29) = CLng(536870912)
m_l2Power(30) = CLng(1073741824)

Dim x
Dim k
Dim AA
Dim BB
Dim CC
Dim DD
Dim a
Dim b
Dim c
Dim d

Const S11 = 7
Const S12 = 12
Const S13 = 17
Const S14 = 22
Const S21 = 5
Const S22 = 9
Const S23 = 14
Const S24 = 20
Const S31 = 4
Const S32 = 11
Const S33 = 16
Const S34 = 23
Const S41 = 6
Const S42 = 10
Const S43 = 15
Const S44 = 21

x = ConvertToWordArray(sMessage)

a = &H67452301
b = &HEFCDAB89
c = &H98BADCFE
d = &H10325476

For k = 0 To UBound(x) Step 16
AA = a
BB = b
CC = c
DD = d

md5_FF a, b, c, d, x(k + 0), S11, &HD76AA478
md5_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
md5_FF c, d, a, b, x(k + 2), S13, &H242070DB
md5_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
md5_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
md5_FF d, a, b, c, x(k + 5), S12, &H4787C62A
md5_FF c, d, a, b, x(k + 6), S13, &HA8304613
md5_FF b, c, d, a, x(k + 7), S14, &HFD469501
md5_FF a, b, c, d, x(k + 8), S11, &H698098D8
md5_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
md5_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
md5_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
md5_FF a, b, c, d, x(k + 12), S11, &H6B901122
md5_FF d, a, b, c, x(k + 13), S12, &HFD987193
md5_FF c, d, a, b, x(k + 14), S13, &HA679438E
md5_FF b, c, d, a, x(k + 15), S14, &H49B40821

md5_GG a, b, c, d, x(k + 1), S21, &HF61E2562
md5_GG d, a, b, c, x(k + 6), S22, &HC040B340
md5_GG c, d, a, b, x(k + 11), S23, &H265E5A51
md5_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
md5_GG a, b, c, d, x(k + 5), S21, &HD62F105D
md5_GG d, a, b, c, x(k + 10), S22, &H2441453
md5_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
md5_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
md5_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
md5_GG d, a, b, c, x(k + 14), S22, &HC33707D6
md5_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
md5_GG b, c, d, a, x(k + 8), S24, &H455A14ED
md5_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
md5_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
md5_GG c, d, a, b, x(k + 7), S23, &H676F02D9
md5_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A

md5_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
md5_HH d, a, b, c, x(k + 8), S32, &H8771F681
md5_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
md5_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
md5_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
md5_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
md5_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
md5_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
md5_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
md5_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
md5_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
md5_HH b, c, d, a, x(k + 6), S34, &H4881D05
md5_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
md5_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
md5_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
md5_HH b, c, d, a, x(k + 2), S34, &HC4AC5665

md5_II a, b, c, d, x(k + 0), S41, &HF4292244
md5_II d, a, b, c, x(k + 7), S42, &H432AFF97
md5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
md5_II b, c, d, a, x(k + 5), S44, &HFC93A039
md5_II a, b, c, d, x(k + 12), S41, &H655B59C3
md5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
md5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
md5_II b, c, d, a, x(k + 1), S44, &H85845DD1
md5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
md5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
md5_II c, d, a, b, x(k + 6), S43, &HA3014314
md5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
md5_II a, b, c, d, x(k + 4), S41, &HF7537E82
md5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
md5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
md5_II b, c, d, a, x(k + 9), S44, &HEB86D391

a = AddUnsigned(a, AA)
b = AddUnsigned(b, BB)
c = AddUnsigned(c, CC)
d = AddUnsigned(d, DD)
Next

If stype = 32 Then
MD5 = LCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d))
Else
MD5 = LCase(WordToHex(b) & WordToHex(c))
End If

End Function

'以下为测试用,可以不要
Sub test()

Dim i As String
i = InputBox("Please input a password:")
If MD5(i, 32) = MD5("abc", 32) Or MD5(i, 16) = MD5("abc", 16) Then: MsgBox "Ok": Else: MsgBox "failed": End
'MsgBox MD5("abc", 16) '返回16位小写
'MsgBox MD5("abc", 32) '返回32位小写

End Sub

'电子表格中调用方法1如 =MD5(A1,16)
'电子表格中调用方法2如 =MD5(A1,32)
'打开Excel按Alt+F11,然后点插入菜单中的模块,然后把这上面所有代码粘贴到模块1中,保存关闭即可在单元格中调用

⑶ EXCEL过期自动加密VBA代码

在VBA窗口,右键工作薄或者工作表名选择VBAProject属性,第二个选项卡“保护”,输入密码就可以对工程代码加密了

⑷ excel2010vba加密的方法

在 Excel 中除了可以利用设置外还可以利用VBA编程进行加密,利用VBA编程可以令加密更加严谨,下面是由我分享的excel2010 vba加密的 方法 ,希望对你有用。

excel2010 vba加密的方法

利用VBA加密步骤1:对想发布自己的Excel VBA的开发者来说,Excel VBA本身不提供VBA代码的加密,封装。目前比较最可靠的Excel VBA代码加密的方法,就是把VBA代码编译成DLL(动态链接库文件),在VBA中调用,从而实现VBA代码的加密,封装,方便和Excel文件整合发布出去。DLL文件基本没法被破解,除此之外其他的VBA加密方法,都可以被轻易破解。用户只需要你的Excel文件,和这个dll文件就够了,不必安装其他任何程序。

利用VBA加密步骤2:编译成DLL文件其实很简单。机子上安装Visual Basic 6.0就可以编译成dll文件了,Visual Basic .Net反倒有点麻烦。Visual Basic通过OLE(对象链接引擎)技术调用Excel以及其中的对象。

利用VBA加密步骤3:总的来说,VBA代码只要做一些简单修改就可以了。主要是对Excel对象的引用,不然VB不能识别vba代码中的对象。比如如下的VBA代码

windows(workbook1).activate

range("L50")=1

直接放进VB中编译成Dll就会有问题,因为VB不能直接识别range对象。

需要添加几行简单的代码来告诉vb怎么引用excel中的这些对象:

dim xlapp as excel.applicatiion

dim xlbook as excel.workbook

dim xlsheet as excel.worksheet

set xlapp=getobject(,"excel.application)

set xlbook=getobject(xxx)

set xlsheet=xlbook.worksheets(1)

利用VBA加密步骤4:然后就照搬你原有的vba代码,但是前面加上对象引用:

xlsheet.range("L50")=1

利用VBA加密步骤5:对VBA代码做这样修改,在VB中调试通过,就可以成功的把多个sub子程序全部编译封装在一个单独的DLL文件了。以后直接在VBA中引用这个DLL文件中的各个sub子程序。原来大段的VBA代码全部被封装在DLL文件中,对用户不可见。

利用VBA加密步骤6:开发者还可以在程序运行前显示软件的版权信息,设置密码。因为这些也封装在DLL文件中,所以用户没法破解。

EXCEL中如何控制每列数据的长度并避免重复录入

1、用数据有效性定义数据长度。

用鼠标选定你要输入的数据范围,点"数据"->"有效性"->"设置","有效性条件"设成"允许""文本长度""等于""5"(具体条件可根据你的需要改变)。

还可以定义一些提示信息、出错警告信息和是否打开中文输入法等,定义好后点"确定"。

2、用条件格式避免重复。

选定A列,点"格式"->"条件格式",将条件设成“公式=COUNTIF($A:$A,$A1)>1”,点"格式"->"字体"->"颜色",选定红色后点两次"确定"。

这样设定好后你输入数据如果长度不对会有提示,如果数据重复字体将会变成红色。

⑸ vba代码加密还能运行

vba代码加密还能运行,改一下设置就可以了。vba代码加密还能运行改了一下就可以了。这种方法实际是避开VBA工程密码验证,骗vba编辑器,该密码输入成功,请求放行。

⑹ VBA代码部分如何加密解密

在VBA编辑器的"工具”菜单里点“VBAProject属性",在“保护”页中把“查看时缩定工程”的勾选上,然后输入密码后确定即可。这样下次打开查看代码时就需要输入密码了。
但这种加密方式的破解,早就有专用工具了,可以在网络上查找试试。
比较好的方法是,把做好含有VBA代码的Excel编译成exe文件,这种工具也可以在网上找到,自己找一下吧。

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