MD5 kleine Buchstaben lesen nicht Große wie!? Visual Basic Forum

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downy
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Anmeldedatum: 20.06.2010
Beiträge: 2

MD5 kleine Buchstaben lesen nicht Große wie!?
Verfasst am: 20.06.2010, 15:56

Hallo ich versuche mein programm fähig zumachen kleine buchstaben zulesen.
ich muss das sonst immer von kleinen buchstaben in große buchstaben umschreiben per hand was nervig ist.

Beispiel so ist das bei mir der hash mit großen buchstaben:

Code:

9CDFB439C7876E703E307864C9167A15

so sollte es eigentlich sein das er es mit kleinen buchstaben lesen kann:

Code:

9cdfb439c7876e703e307864c9167a15

hier ist der code vom md5 class:

Code:

Option Explicit

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 DigestStrToHexStr(SourceString As String) As String
MD5Init
MD5Update Len(SourceString), StringToArray(SourceString)
MD5Final
DigestStrToHexStr = GetValues
End Function
Public Function DigestFileToHexStr(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
DigestFileToHexStr = GetValues
End Function
Private Function StringToArray(InString As String) As Byte()
Dim i As Integer, bytBuffer() As Byte
ReDim bytBuffer(Len(InString))
For i = 0 To Len(InString) - 1
bytBuffer(i) = Asc(Mid$(InString, i + 1, 1))
Next i
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
State(2) = UnsignedToLong(4023233417#)
State(3) = UnsignedToLong(2562383102#)
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(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

ich dachte mir die bytes auf 32 oder 16 zustellen, aber funktioniert leider nicht.
_________________

downy
Newbie
Newbie

Anmeldedatum: 20.06.2010
Beiträge: 2

Verfasst am: 20.06.2010, 16:24

hab schon die lösung muhaha ganz einfach^^

einfach eine sub hinzugefügt unter meine textbox wo der hash reinkommt:

Code:

Private Sub Text1_KeyUp(KeyCode As Integer, Shift As Integer)
Text1.Text = UCase(Text1.Text)
End Sub

anstatt "Text1" natürlich sobenannt wie meine textbox hieß. peace

Visual Basic Forum Foren-Übersicht -> [VB6] Fragen - Antworten

Tags: private function, public function, buchstaben

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