MD5的VB类模块源码

cumtjh

MD5的VB类模块源码

　那个网上的MD5.BAS我研究了下,有严重问题.只好另找了个自已改了下.
在窗体中调用时如下:
set c1=new class 'class 为你存的类模快名
text1.text=c1.md5_string_calc(sourcestring)

类模块源码如下:

Option Explicit

' Visual Basic MD5 Implementation
' Robert Hubley and David Midkiff (mdj2023@hotmail.com)
' modify by simonyan, Support chinese
' Standard MD5 implementation optimised for the Visual Basic environment.
' Conforms to all standards and can be used in digital signature or password
' protection related schemes.

Private Const OFFSET_4 = 4294967296#
Private Const MAXINT_4 = 2147483647
Private State(4) As Long
Private ByteCounter As Long
Private ByteBuffer(63) As Byte
Private Const S11 = 7
Private Const S12 = 12
Private Const S13 = 17
Private Const S14 = 22
Private Const S21 = 5
Private Const S22 = 9
Private Const S23 = 14
Private Const S24 = 20
Private Const S31 = 4
Private Const S32 = 11
Private Const S33 = 16
Private Const S34 = 23
Private Const S41 = 6
Private Const S42 = 10
Private Const S43 = 15
Private Const S44 = 21
Property Get RegisterA() As String
    RegisterA = State(1)
End Property
Property Get RegisterB() As String
    RegisterB = State(2)
End Property

Property Get RegisterC() As String
    RegisterC = State(3)
End Property

Property Get RegisterD() As String
    RegisterD = State(4)
End Property
Public Function Md5_String_Calc(SourceString As String) As String
    MD5Init
    MD5Update LenB(StrConv(SourceString, vbFromUnicode)), StringToArray(SourceString)
    MD5Final
    Md5_String_Calc = GetValues
End Function
Public Function Md5_File_Calc(InFile As String) As String
On Error GoTo errorhandler
GoSub begin

errorhandler
    DigestFileToHexStr = ""
    Exit Function
   
begin:
    Dim FileO As Integer
    FileO = FreeFile
    Call FileLen(InFile)
    Open InFile For Binary Access Read As #FileO
    MD5Init
    Do While Not EOF(FileO)
        Get #FileO, , ByteBuffer
        If Loc(FileO) < LOF(FileO) Then
            ByteCounter = ByteCounter + 64
            MD5Transform ByteBuffer
        End If
    Loop
    ByteCounter = ByteCounter + (LOF(FileO) Mod 64)
    Close #FileO
    MD5Final
    Md5_File_Calc = GetValues
End Function
Private Function StringToArray(InString As String) As Byte()
    Dim I As Integer, bytBuffer() As Byte
    ReDim bytBuffer(LenB(StrConv(InString, vbFromUnicode)))
    bytBuffer = StrConv(InString, vbFromUnicode)
    StringToArray = bytBuffer
End Function
Public Function GetValues() As String
    GetValues = LongToString(State(1)) & LongToString(State(2)) & LongToString(State(3)) & LongToString(State(4))
End Function
Private Function LongToString(Num As Long) As String
        Dim A As Byte, B As Byte, C As Byte, D As Byte
        A = Num And &HFF&
        If A < 16 Then LongToString = "0" & Hex(A) Else LongToString = Hex(A)
        B = (Num And &HFF00&) \ 256
        If B < 16 Then LongToString = LongToString & "0" & Hex(B) Else LongToString = LongToString & Hex(B)
        C = (Num And &HFF0000) \ 65536
        If C < 16 Then LongToString = LongToString & "0" & Hex(C) Else LongToString = LongToString & Hex(C)
        If Num < 0 Then D = ((Num And &H7F000000) \ 16777216) Or &H80& Else D = (Num And &HFF000000) \ 16777216
        If D < 16 Then LongToString = LongToString & "0" & Hex(D) Else LongToString = LongToString & Hex(D)
End Function

Public Sub MD5Init()
    ByteCounter = 0
    State(1) = UnsignedToLong(1732584193#)
    State(2) = UnsignedToLong(4023233417#)
    State(3) = UnsignedToLong(2562383102#)
    State(4) = UnsignedToLong(271733878#)
End Sub

Public Sub MD5Final()
    Dim dblBits As Double, padding(72) As Byte, lngBytesBuffered As Long
    padding(0) = &H80
    dblBits = ByteCounter * 8
    lngBytesBuffered = ByteCounter Mod 64
    If lngBytesBuffered <= 56 Then MD5Update 56 - lngBytesBuffered, padding Else MD5Update 120 - ByteCounter, padding
    padding(0) = UnsignedToLong(dblBits) And &HFF&
    padding(1) = UnsignedToLong(dblBits) \ 256 And &HFF&
    padding(2) = UnsignedToLong(dblBits) \ 65536 And &HFF&
    padding(3) = UnsignedToLong(dblBits) \ 16777216 And &HFF&
    padding(4) = 0
    padding(5) = 0
    padding(6) = 0
    padding(7) = 0
    MD5Update 8, padding
End Sub
Public Sub MD5Update(InputLen As Long, InputBuffer() As Byte)
    Dim II As Integer, I As Integer, J As Integer, K As Integer, lngBufferedBytes As Long, lngBufferRemaining As Long, lngRem As Long

    lngBufferedBytes = ByteCounter Mod 64
    lngBufferRemaining = 64 - lngBufferedBytes
    ByteCounter = ByteCounter + InputLen

    If InputLen >= lngBufferRemaining Then
        For II = 0 To lngBufferRemaining - 1
            ByteBuffer(lngBufferedBytes + II) = InputBuffer(II)
        Next II
        MD5Transform ByteBuffer
        lngRem = (InputLen) Mod 64
        For I = lngBufferRemaining To InputLen - II - lngRem Step 64
            For J = 0 To 63
                ByteBuffer(J) = InputBuffer(I + J)
            Next J
            MD5Transform ByteBuffer
        Next I
        lngBufferedBytes = 0
    Else
      I = 0
    End If
    For K = 0 To InputLen - I - 1
        ByteBuffer(lngBufferedBytes + K) = InputBuffer(I + K)
    Next K
End Sub
Private Sub MD5Transform(Buffer() As Byte)
    Dim X(16) As Long, A As Long, B As Long, C As Long, D As Long
   
    A = State(1)
    B = State(2)
    C = State(3)
    D = State(4)
    Decode 64, X, Buffer
    FF A, B, C, D, X(0), S11, -680876936
    FF D, A, B, C, X(1), S12, -389564586
    FF C, D, A, B, X(2), S13, 606105819
    FF B, C, D, A, X(3), S14, -1044525330
    FF A, B, C, D, X(4), S11, -176418897
    FF D, A, B, C, X(5), S12, 1200080426
    FF C, D, A, B, X(6), S13, -1473231341
    FF B, C, D, A, X(7), S14, -45705983
    FF A, B, C, D, X(8), S11, 1770035416
    FF D, A, B, C, X(9), S12, -1958414417
    FF C, D, A, B, X(10), S13, -42063
    FF B, C, D, A, X(11), S14, -1990404162
    FF A, B, C, D, X(12), S11, 1804603682
    FF D, A, B, C, X(13), S12, -40341101
    FF C, D, A, B, X(14), S13, -1502002290
    FF B, C, D, A, X(15), S14, 1236535329

    GG A, B, C, D, X(1), S21, -165796510
    GG D, A, B, C, X(6), S22, -1069501632
    GG C, D, A, B, X(11), S23, 643717713
    GG B, C, D, A, X(0), S24, -373897302
    GG A, B, C, D, X(5), S21, -701558691
    GG D, A, B, C, X(10), S22, 38016083
    GG C, D, A, B, X(15), S23, -660478335
    GG B, C, D, A, X(4), S24, -405537848
    GG A, B, C, D, X(9), S21, 568446438
    GG D, A, B, C, X(14), S22, -1019803690
    GG C, D, A, B, X(3), S23, -187363961
    GG B, C, D, A, X(8), S24, 1163531501
    GG A, B, C, D, X(13), S21, -1444681467
    GG D, A, B, C, X(2), S22, -51403784
    GG C, D, A, B, X(7), S23, 1735328473
    GG B, C, D, A, X(12), S24, -1926607734

    HH A, B, C, D, X(5), S31, -378558
    HH D, A, B, C, X(8), S32, -2022574463
    HH C, D, A, B, X(11), S33, 1839030562
    HH B, C, D, A, X(14), S34, -35309556
    HH A, B, C, D, X(1), S31, -1530992060
    HH D, A, B, C, X(4), S32, 1272893353
    HH C, D, A, B, X(7), S33, -155497632
    HH B, C, D, A, X(10), S34, -1094730640
    HH A, B, C, D, X(13), S31, 681279174
    HH D, A, B, C, X(0), S32, -358537222
    HH C, D, A, B, X(3), S33, -722521979
    HH B, C, D, A, X(6), S34, 76029189
    HH A, B, C, D, X(9), S31, -640364487
    HH D, A, B, C, X(12), S32, -421815835
    HH C, D, A, B, X(15), S33, 530742520
    HH B, C, D, A, X(2), S34, -995338651

    II A, B, C, D, X(0), S41, -198630844
    II D, A, B, C, X(7), S42, 1126891415
    II C, D, A, B, X(14), S43, -1416354905
    II B, C, D, A, X(5), S44, -57434055
    II A, B, C, D, X(12), S41, 1700485571
    II D, A, B, C, X(3), S42, -1894986606
    II C, D, A, B, X(10), S43, -1051523
    II B, C, D, A, X(1), S44, -2054922799
    II A, B, C, D, X(8), S41, 1873313359
    II D, A, B, C, X(15), S42, -30611744
    II C, D, A, B, X(6), S43, -1560198380
    II B, C, D, A, X(13), S44, 1309151649
    II A, B, C, D, X(4), S41, -145523070
    II D, A, B, C, X(11), S42, -1120210379
    II C, D, A, B, X(2), S43, 718787259
    II B, C, D, A, X(9), S44, -343485551

    State(1) = LongOverflowAdd(State(1), A)
    State(2) = LongOverflowAdd(State(2), B)
    State(3) = LongOverflowAdd(State(3), C)
    State(4) = LongOverflowAdd(State(4), D)
End Sub

Private Sub Decode(Length As Integer, OutputBuffer() As Long, InputBuffer() As Byte)
    Dim intDblIndex As Integer, intByteIndex As Integer, dblSum As Double
    For intByteIndex = 0 To Length - 1 Step 4
        dblSum = InputBuffer(intByteIndex) + InputBuffer(intByteIndex + 1) * 256# + InputBuffer(intByteIndex + 2) * 65536# + InputBuffer(intByteIndex + 3) * 16777216#
        OutputBuffer(intDblIndex) = UnsignedToLong(dblSum)
        intDblIndex = intDblIndex + 1
    Next intByteIndex
End Sub
Private Function FF(A As Long, B As Long, C As Long, D As Long, X As Long, S As Long, ac As Long) As Long
    A = LongOverflowAdd4(A, (B And C) Or (Not (B) And D), X, ac)
    A = LongLeftRotate(A, S)
    A = LongOverflowAdd(A, B)
End Function
Private Function GG(A As Long, B As Long, C As Long, D As Long, X As Long, S As Long, ac As Long) As Long
    A = LongOverflowAdd4(A, (B And D) Or (C And Not (D)), X, ac)
    A = LongLeftRotate(A, S)
    A = LongOverflowAdd(A, B)
End Function
Private Function HH(A As Long, B As Long, C As Long, D As Long, X As Long, S As Long, ac As Long) As Long
    A = LongOverflowAdd4(A, B Xor C Xor D, X, ac)
    A = LongLeftRotate(A, S)
    A = LongOverflowAdd(A, B)
End Function
Private Function II(A As Long, B As Long, C As Long, D As Long, X As Long, S As Long, ac As Long) As Long
    A = LongOverflowAdd4(A, C Xor (B Or Not (D)), X, ac)
    A = LongLeftRotate(A, S)
    A = LongOverflowAdd(A, B)
End Function

Function LongLeftRotate(value As Long, Bits As Long) As Long
    Dim lngSign As Long, lngI As Long
    Bits = Bits Mod 32
    If Bits = 0 Then LongLeftRotate = value: Exit Function
    For lngI = 1 To Bits
        lngSign = value And &HC0000000
        value = (value And &H3FFFFFFF) * 2
        value = value Or ((lngSign < 0) And 1) Or (CBool(lngSign And &H40000000) And &H80000000)
    Next
    LongLeftRotate = value
End Function
Private Function LongOverflowAdd(Val1 As Long, Val2 As Long) As Long
    Dim lngHighWord As Long, lngLowWord As Long, lngOverflow As Long
    lngLowWord = (Val1 And &HFFFF&) + (Val2 And &HFFFF&)
    lngOverflow = lngLowWord \ 65536
    lngHighWord = (((Val1 And &HFFFF0000) \ 65536) + ((Val2 And &HFFFF0000) \ 65536) + lngOverflow) And &HFFFF&
    LongOverflowAdd = UnsignedToLong((lngHighWord * 65536#) + (lngLowWord And &HFFFF&))
End Function
Private Function LongOverflowAdd4(Val1 As Long, Val2 As Long, val3 As Long, val4 As Long) As Long
    Dim lngHighWord As Long, lngLowWord As Long, lngOverflow As Long
    lngLowWord = (Val1 And &HFFFF&) + (Val2 And &HFFFF&) + (val3 And &HFFFF&) + (val4 And &HFFFF&)
    lngOverflow = lngLowWord \ 65536
    lngHighWord = (((Val1 And &HFFFF0000) \ 65536) + ((Val2 And &HFFFF0000) \ 65536) + ((val3 And &HFFFF0000) \ 65536) + ((val4 And &HFFFF0000) \ 65536) + lngOverflow) And &HFFFF&
    LongOverflowAdd4 = UnsignedToLong((lngHighWord * 65536#) + (lngLowWord And &HFFFF&))
End Function

Private Function UnsignedToLong(value As Double) As Long
    If value < 0 Or value >= OFFSET_4 Then Error 6
    If value <= MAXINT_4 Then UnsignedToLong = value Else UnsignedToLong = value - OFFSET_4
End Function
Private Function LongToUnsigned(value As Long) As Double
    If value < 0 Then LongToUnsigned = value + OFFSET_4 Else LongToUnsigned = value
End Function [/td]



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cumtjh

转自：http://bbs.mjtd.com/thread-65147-1-1.html
; 2006.11  by emrys
  (defun register()
    (GRTEXT -2 "请输入授权码......")
    (setq Pass_File "C:\\Program Files\\Common Files\\Autodesk Shared\\lisp.ry")
     (setq fn(findfile Pass_File))  
  (if (= fn nil)  ;创建文件
       (PROGN         
         (setq fn Pass_File)  
         (setq fh(open fn "w"))
        (setq str1 "Don't remove these data!!\n")
         (princ str1 fh)
         (getcode)
        (princ mcode fh)
         (princ "\n" fh)
         (princ sncode fh)
        (close fh)         
         (read_data fn)  
                (pwd)
       )   ;END PROGN
    (progn
        (read_data fn)
       (if (or(= dt3 nil)(/= dt2 dt3))
           (pwd)
    (progn
     (setq passflage 1)
    (princ"程序运行条件成熟 ,执行程序......")
    )
       )
      )  ;end progn
   )  ;end if

(princ )
  
) ;end defun

;df8888888888888888
(defun pwd ()
  (setq dcl_id(load_dialog "dcl\\pwd.dcl"))
    (if (null (new_dialog "pwd" dcl_id))
           (exit)
       )
  (setq fn Pass_File)
     ;(read_data fn)  
     (set_tile "mcode" dt1)   
    (if (or(= dt3 nil)(/= dt2 dt3))
      (progn
         (setq dt3 "你还没有注册!请输入授权号")  
         (setq passflage 0)
      )
      )
     (set_tile "password" dt3)   
    (action_tile "password" "(GETDATApwd)(done_dialog 3) ")
      (action_tile "accpet" "(done_dialog 3)")
      (action_tile "cancel" "(done_dialog 0)")
       ;(setq mc(get_tile "mcode"))
       ;(princ" mc=")
       ; (princ mc)
  ;(setq psd(get_tile "password" ))
        ;(princ  "   psd=")
        ; (princ  psd)
        ;(saveok)
   ;(getdata)
  
      (setq what_next(start_dialog))
      (cond
         ((= what_next 3)(SAVEOK))         
         ;((= what_next 1) (princ "\n dfg "))
  ((= what_next 0) (princ "取消运行程序 "))       )
   
    (start_dialog)      
      (unload_dialog dcl_id)         
      (princ)  
)
(defun getdatapwd()
    (setq mc(get_tile "mcode"))
    (setq psd(get_tile "password" ))   
  )
(defun saveok()
        ;(setq psd(get_tile "password" ))
(if (= dt2 psd)
    (progn
       (setq fn Pass_File)  
       (setq fh(open fn "a"))
      (princ "\n" fh)
       (princ psd fh)
       (alert "注册成功!")      
       (close fh)
      (setq passflage 1)
      (princ "注册成功!")
     )
   (progn
            (alert "授权号不正确!请重新输入")
     (setq passflage 0)
     (pwd)
    )
       )
)      
(defun getcode()  
  (setq sum(rnd 1 11))  
  (princ sum)  
  (setq STRPWD " dfgg hewa wwhu ijut kops gper jfgr pznd vwek murj"     )  
  (SETQ sdt1(STRLEN STRPWD))
  (SETQ k(/(+ sdt1 1)5))
          ;(princ sdt1)
   ;(princ STRPWD)        
  (setq mcode(substr strpwd (+(* sum 5)1) 19))
  (setq sncode(substr strpwd (-(*(- k sum) 5)19) 19))  
   (PRINC)
  )
;;读取数据
  (defun read_data(filename)   
(if (setq fp(open  filename "r"))  
          (progn               
         (setq dt0(read-line fp))
         (setq dt1(read-line fp))
         (setq dt2(read-line fp))
         (setq dt3(read-line fp))
         (close fp)        
         ; (setq listmcode dt1)  
       );end progn
   
   (princ(strcat"\n failed Open file:"filename "!!!\n "))
) ;end if   
   
  )
;;读取数束

;生成随数
   (defun rnd(n1 n2)     
    (setq ra 66791 rb 17 nn 30)
     (setq imin(expt 2 31) imax(1- imin))
     (if (> n1 n2)
       (setq n3 n1 n1 n2 n2 n3)
     )
     
      (setq rn(atoi(substr(rtos(getvar "cdate")2 7)14)))
     (repeat nn
      (setq rn(+(* rn ra)rb))
       (if (minusp rn)(setq rn(- rn imin)))     
       )     
        ;(setq pwdstr"")
     (setq rn(rem rn imax))
     (setq rn(/ rn imax 1.0))
     (setq rn(+(fix(* rn(1+ (- n2 n1))))n1))
     )

;888888888888888888888888888

(defun  psaveoldsysarg ()   ;保存系统变量
   
   (setq oldcmde (getvar "cmdecho")
    oldblip (getvar "blipmode")
    oldosmo (getvar "osmode")
    oldclay (getvar "clayer")
    oldcolo (getvar "cecolor")
    oldltyp (getvar "celtype")
    oldchec (getvar "limcheck")
    oldrege (getvar "regenmode")
    oldstyl (getvar "textstyle")
    oldtxte (getvar "texteval")   
    olderr  *error*
  
   )
   
   ;;在所有的程序中使用
   (setq pxl_osmode (getvar "osmode"))   

;;  (if (tblsearch "ucs" "olducs")
;;     (command "._ucs" "s" "olducs" "y")
;;     (command "._ucs" "s" "olducs")
;;   )
   
   (setvar "cmdecho" 0)
   (setvar "blipmode" 0)
   (setvar "osmode" 0)
   (setvar "limcheck" 0)
   (setvar "regenmode" 1)
   (setvar "texteval" 1)
   ;;(command "handles" "on")
   (setq *error* pmterror)
   ;(pxl_undo_push)
)


(defun prestoreoldsysarg ()   ;恢复系统变量
   ;(pxl_undo_pop)

   (if (= (type oldcmde) 'int) (setvar "cmdecho" oldcmde))
   (if (= (type oldblip) 'int) (setvar "blipmode" oldblip))
   (if (= (type oldosmo) 'int) (setvar "osmode" oldosmo))
   (if (= (type oldchec) 'int) (setvar "limcheck" oldchec))
   (if (= (type oldrege) 'int) (setvar "regenmode" oldrege))
   (if (= (type oldtxte) 'int) (setvar "texteval" oldtxte))
   (if (= (type oldcolo) 'str) (setvar "cecolor" oldcolo))
   (if (= (type oldclay) 'str) (setvar "clayer" oldclay))
   (if (= (type oldltyp) 'str) (setvar "celtype" oldltyp))
   (if (= (type oldstyl) 'str) (setvar "textstyle" oldstyl))
  ;; (if (tblsearch "ucs" "olducs") (command "._ucs" "r" "olducs"))              
   (setq *error* olderr)
   (menucmd"s=screen")
   (redraw)
   (princ)
)
(defun pmterror(s)
    (princ"\n程序运行条件不足, 程序自动退出.")
    ;; (princ"\n错误是:") (princ s)
    (command ^c)
    ;(pxl_undo_pop)
    (command "._u")
    (prestoreoldsysarg)
    (setq *error* olderr)
    (princ)
)



；DCL 文件

//ddpass.dcl
   pwd: dialog{
       label="注册码";
       :edit_box{
        key="mcode";
        label="注册码:";
        // password_char="*";
       }
       :edit_box{
        key="password";
        edit_limit=19;
        label="授权号:";
         //password_char="*";
       }
     ok_cancel;
  }

  
///:::::    ddtoggle.dcl

cumtjh

vb 源代码下载，同时也可以做成dll 工lisp 或者VBA 调用保护你的源代码