MD5 加密算法 VB 实现代码
虽然现在MD5 加密算法严格来讲已经不算安全,但一般小功能或公司内部使用应该足够了
Attribute VB_Name = "modMd5"
' MODULE: CMD5
'*******************************************************************************
Option Explicit
Public Const BITS_TO_A_BYTE As Long = 8
Public Const BYTES_TO_A_WORD As Long = 4
Public Const BITS_TO_A_WORD As Long = BYTES_TO_A_WORD * BITS_TO_A_BYTE
Public m_lOnBits(0 To 30) As Long
Public m_l2Power(0 To 30) As Long
Public Function MD5_Encrypt(ByVal sText As String) As String
MD5_Init
MD5_Encrypt = MD5(sText)
End Function
'*******************************************************************************
' Class_Initialize (SUB)
'
' DESCRIPTION:
' We will usually get quicker results by preparing arrays of bit patterns and
' powers of 2 ahead of time instead of calculating them every time, unless of
' course the methods are only ever getting called once per instantiation of the
' class.
'*******************************************************************************
Public Sub MD5_Init()
' Could have done this with a loop calculating each value, but simply
' assigning the values is quicker - BITS SET from RIGHT
m_lOnBits(0) = 1 ' 00000000000000000000000000000001
m_lOnBits(1) = 3 ' 00000000000000000000000000000011
m_lOnBits(2) = 7 ' 00000000000000000000000000000111
m_lOnBits(3) = 15 ' 00000000000000000000000000001111
m_lOnBits(4) = 31 ' 00000000000000000000000000011111
m_lOnBits(5) = 63 &nb
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作者: 佚名, 出处:IT专家网, 责任编辑: 谢妍妍,
2010-04-23 11:20
本文介绍VB对程序运行的监控。
转眼间,本系列文章已经写到了第六个,今天写点什么呢?
还是得写,看似VB做不到的事情,那么今天起就写写VB对操作系统的控制吧。
首先,说一说,VB对于被调用后的程序的监控方法。
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