Seguridad de menú
Hola cómo estas,
Rapidito, requiero de un código que me permita controlar la seguridad de los menús de VB. Me informaron que existían unos algoritmos encriptados MD5 y que en VB existía algo parecido, pero no tengo tiempo de analizarlos en este momento, para luego si..... Solo quiero un código por favor....
Rapidito, requiero de un código que me permita controlar la seguridad de los menús de VB. Me informaron que existían unos algoritmos encriptados MD5 y que en VB existía algo parecido, pero no tengo tiempo de analizarlos en este momento, para luego si..... Solo quiero un código por favor....
1 respuesta
Respuesta de vbgopher
1
Talvez esto te sirva
DefInt A-Z
Option Explicit
'//For Action parameter in EncryptString
Public Const ENCRYPT = 1, DECRYPT = 2
'---------------------------------------------------------------------
' EncryptString
' Modificado por Harvey T.
'---------------------------------------------------------------------
Public Function EncryptString( _
UserKey As String, Text As String, Action As Single _
) As String
Dim UserKeyX As String
Dim Temp As Integer
Dim Times As Integer
Dim i As Integer
Dim j As Integer
Dim n As Integer
Dim rtn As String
'//Get UserKey characters
n = Len(UserKey)
ReDim UserKeyASCIIS(1 To n)
For i = 1 To n
UserKeyASCIIS(i) = Asc(Mid$(UserKey, i, 1))
Next
'//Get Text characters
ReDim TextASCIIS(Len(Text)) As Integer
For i = 1 To Len(Text)
TextASCIIS(i) = Asc(Mid$(Text, i, 1))
Next
'//Encryption/Decryption
If Action = ENCRYPT Then
For i = 1 To Len(Text)
j = IIf(j + 1 >= n, 1, j + 1)
Temp = TextASCIIS(i) + UserKeyASCIIS(j)
If Temp > 255 Then
Temp = Temp - 255
End If
rtn = rtn + Chr$(Temp)
Next
ElseIf Action = DECRYPT Then
For i = 1 To Len(Text)
j = IIf(j + 1 >= n, 1, j + 1)
Temp = TextASCIIS(i) - UserKeyASCIIS(j)
If Temp < 0 Then
Temp = Temp + 255
End If
rtn = rtn + Chr$(Temp)
Next
End If
'//Return
EncryptString = rtn
End Function
http://www.mvps.org/vexpert/articles/vbEncrypt.htm
VbGopher!
DefInt A-Z
Option Explicit
'//For Action parameter in EncryptString
Public Const ENCRYPT = 1, DECRYPT = 2
'---------------------------------------------------------------------
' EncryptString
' Modificado por Harvey T.
'---------------------------------------------------------------------
Public Function EncryptString( _
UserKey As String, Text As String, Action As Single _
) As String
Dim UserKeyX As String
Dim Temp As Integer
Dim Times As Integer
Dim i As Integer
Dim j As Integer
Dim n As Integer
Dim rtn As String
'//Get UserKey characters
n = Len(UserKey)
ReDim UserKeyASCIIS(1 To n)
For i = 1 To n
UserKeyASCIIS(i) = Asc(Mid$(UserKey, i, 1))
Next
'//Get Text characters
ReDim TextASCIIS(Len(Text)) As Integer
For i = 1 To Len(Text)
TextASCIIS(i) = Asc(Mid$(Text, i, 1))
Next
'//Encryption/Decryption
If Action = ENCRYPT Then
For i = 1 To Len(Text)
j = IIf(j + 1 >= n, 1, j + 1)
Temp = TextASCIIS(i) + UserKeyASCIIS(j)
If Temp > 255 Then
Temp = Temp - 255
End If
rtn = rtn + Chr$(Temp)
Next
ElseIf Action = DECRYPT Then
For i = 1 To Len(Text)
j = IIf(j + 1 >= n, 1, j + 1)
Temp = TextASCIIS(i) - UserKeyASCIIS(j)
If Temp < 0 Then
Temp = Temp + 255
End If
rtn = rtn + Chr$(Temp)
Next
End If
'//Return
EncryptString = rtn
End Function
http://www.mvps.org/vexpert/articles/vbEncrypt.htm
VbGopher!
