htkeycollection.cls

这是一个在vb下实现的各种加密程序,可以实现一般的文本加密和文件加密,但是很多算法都是已经被人破解过的.

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "HTKeyCollection"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
'    CopyRight (c) 2004 Kelly Ethridge
'
'    This file is part of VBCorLib.
'
'    VBCorLib is free software; you can redistribute it and/or modify
'    it under the terms of the GNU Library General Public License as published by
'    the Free Software Foundation; either version 2.1 of the License, or
'    (at your option) any later version.
'
'    VBCorLib is distributed in the hope that it will be useful,
'    but WITHOUT ANY WARRANTY; without even the implied warranty of
'    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
'    GNU Library General Public License for more details.
'
'    You should have received a copy of the GNU Library General Public License
'    along with Foobar; if not, write to the Free Software
'    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
'
'    Module: HTKeyCollection
'

''
' Provides simple ICollection access to the keys of the parent hashtable.
'
Option Explicit
Implements IObject
Implements ICollection
Implements IEnumerable

Private mList As Hashtable



' To allow For..Each even if this object is being held
' in an Object datetype object.
Public Function NewEnum() As IUnknown
Attribute NewEnum.VB_UserMemId = -4
    Set NewEnum = CreateEnumerator(mList.GetKeyEnumerator)
End Function


'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'   Friend Interface
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Friend Sub Init(ByVal list As Hashtable)
    Set mList = list
End Sub


'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'   IObject Interface
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Private Function IObject_Equals(Value As Variant) As Boolean
    IObject_Equals = Object.Equals(Me, Value)
End Function

Private Function IObject_GetHashcode() As Long
    IObject_GetHashcode = ObjPtr(CUnk(Me))
End Function

Private Function IObject_ToString() As String
    IObject_ToString = Object.ToString(Me, App)
End Function


'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'   ICollection Interface
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Private Sub ICollection_CopyTo(Arr As Variant, ByVal Index As Long)
    Call mList.CopyKeys(Arr, Index)
End Sub

Private Property Get ICollection_Count() As Long
    ICollection_Count = mList.Count
End Property

Private Function ICollection_GetEnumerator() As IEnumerator
    Set ICollection_GetEnumerator = mList.GetKeyEnumerator
End Function

Private Function ICollection_NewEnum() As stdole.IUnknown
    Set ICollection_NewEnum = NewEnum
End Function


'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'   IEnumerable Interface
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Private Function IEnumerable_GetEnumerator() As IEnumerator
    Set IEnumerable_GetEnumerator = ICollection_GetEnumerator
End Function

Private Function IEnumerable_NewEnum() As stdole.IUnknown
    Set IEnumerable_NewEnum = NewEnum
End Function