vba怎麼加密代碼

⑴ EXCE如何用VBA代碼加入啟動時對所有工作表加密,並設指定密碼

通過代碼對excel代碼進行加密即可：

1、打開您需要破解保護密碼的Excel文件；

2、依次點擊菜單欄上的工具---宏----錄制新宏，輸入宏名字如:aa；

3、停止錄制(這樣得到一個空宏)；

4、依次點擊菜單欄上的工具---宏----宏,選aa,點編輯按鈕；

5、刪除窗口中的所有字元(只有幾個),替換為下面的內容；

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

⑵ 如何用VBA 編寫MD5加密函數

'電子表格中調用方法1如 =MD5(A1,16)
'電子表格中調用方法2如 =MD5(A1,32)
'打開Excel按Alt+F11，然後點插入菜單中的模塊，然後把這上面所有代碼粘貼到模塊1中，保存關閉即可在單元格中調用
'這些是注釋，以把以下代碼直接復制到使用即可。

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

'以下為測試用，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位小寫
'MsgBox MD5("abc", 32) '返回32位小寫

End Sub

'電子表格中調用方法1如 =MD5(A1,16)
'電子表格中調用方法2如 =MD5(A1,32)
'打開Excel按Alt+F11，然後點插入菜單中的模塊，然後把這上面所有代碼粘貼到模塊1中，保存關閉即可在單元格中調用

⑶ EXCEL過期自動加密VBA代碼

在VBA窗口，右鍵工作薄或者工作表名選擇VBAProject屬性，第二個選項卡「保護」，輸入密碼就可以對工程代碼加密了

⑷ excel2010vba加密的方法

在 Excel 中除了可以利用設置外還可以利用VBA編程進行加密，利用VBA編程可以令加密更加嚴謹，下面是由我分享的excel2010 vba加密的 方法 ，希望對你有用。

利用VBA加密步驟1：對想發布自己的Excel VBA的開發者來說，Excel VBA本身不提供VBA代碼的加密，封裝。目前比較最可靠的Excel VBA代碼加密的方法，就是把VBA代碼編譯成DLL(動態鏈接庫文件)，在VBA中調用，從而實現VBA代碼的加密，封裝，方便和Excel文件整合發布出去。DLL文件基本沒法被破解，除此之外其他的VBA加密方法，都可以被輕易破解。用戶只需要你的Excel文件，和這個dll文件就夠了，不必安裝其他任何程序。

利用VBA加密步驟2：編譯成DLL文件其實很簡單。機子上安裝Visual Basic 6.0就可以編譯成dll文件了，Visual Basic .Net反倒有點麻煩。Visual Basic通過OLE(對象鏈接引擎)技術調用Excel以及其中的對象。

利用VBA加密步驟3：總的來說，VBA代碼只要做一些簡單修改就可以了。主要是對Excel對象的引用，不然VB不能識別vba代碼中的對象。比如如下的VBA代碼

windows(workbook1).activate

range("L50")=1

直接放進VB中編譯成Dll就會有問題，因為VB不能直接識別range對象。

需要添加幾行簡單的代碼來告訴vb怎麼引用excel中的這些對象：

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加密步驟4：然後就照搬你原有的vba代碼,但是前面加上對象引用：

xlsheet.range("L50")=1

利用VBA加密步驟5：對VBA代碼做這樣修改，在VB中調試通過，就可以成功的把多個sub子程序全部編譯封裝在一個單獨的DLL文件了。以後直接在VBA中引用這個DLL文件中的各個sub子程序。原來大段的VBA代碼全部被封裝在DLL文件中，對用戶不可見。

利用VBA加密步驟6：開發者還可以在程序運行前顯示軟體的版權信息，設置密碼。因為這些也封裝在DLL文件中，所以用戶沒法破解。

1、用數據有效性定義數據長度。

用滑鼠選定你要輸入的數據范圍，點"數據"->"有效性"->"設置"，"有效性條件"設成"允許""文本長度""等於""5"(具體條件可根據你的需要改變)。

還可以定義一些提示信息、出錯警告信息和是否打開中文輸入法等，定義好後點"確定"。

2、用條件格式避免重復。

選定A列，點"格式"->"條件格式"，將條件設成“公式=COUNTIF($A:$A,$A1)>1”，點"格式"->"字體"->"顏色"，選定紅色後點兩次"確定"。

這樣設定好後你輸入數據如果長度不對會有提示，如果數據重復字體將會變成紅色。

⑸ vba代碼加密還能運行

vba代碼加密還能運行，改一下設置就可以了。vba代碼加密還能運行改了一下就可以了。這種方法實際是避開VBA工程密碼驗證，騙vba編輯器，該密碼輸入成功，請求放行。

⑹ VBA代碼部分如何加密解密

在VBA編輯器的"工具」菜單里點「VBAProject屬性"，在「保護」頁中把「查看時縮定工程」的勾選上，然後輸入密碼後確定即可。這樣下次打開查看代碼時就需要輸入密碼了。
但這種加密方式的破解，早就有專用工具了，可以在網路上查找試試。
比較好的方法是，把做好含有VBA代碼的Excel編譯成exe文件，這種工具也可以在網上找到，自己找一下吧。