vb.net文本加密 vb加密字符串

求VB.NET生成TET文件的加密方法使用加密方式存储即可实现别人无法查看内容，加密的方式有很多，适用你这里使用的是可逆的算法，推荐你使用DES加密
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.IO
Imports System.Security
Imports System.Security.Cryptography
Namespace ZU14
NotInheritable Public Class DES
Private iv As String = "1234的yzo"
Private key As String = "123在yzo"
'/ summary
'/ DES加密偏移量，必须是=8位长的字符串
'/ /summary
Public Property IV() As String
Get
Return iv
End Get
Set
iv = value
End Set
End Property
'/ summary
'/ DES加密的私钥，必须是8位长的字符串
'/ /summary
Public Property Key() As String
Get
Return key
End Get
Set
key = value
End Set
End Property
'/ summary
'/ 对字符串进行DES加密
'/ /summary
'/ param name="sourceString"待加密的字符串/param
'/ returns加密后的BASE64编码的字符串/returns
Public Function Encrypt(sourceString As String) As String
Dim btKey As Byte() = Encoding.Default.GetBytes(key)
Dim btIV As Byte() = Encoding.Default.GetBytes(iv)
Dim des As New DESCryptoServiceProvider()
Dim ms As New MemoryStream()
Try
Dim inData As Byte() = Encoding.Default.GetBytes(sourceString)
Try
Dim cs As New CryptoStream(ms, des.CreateEncryptor(btKey, btIV), CryptoStreamMode.Write)
Try
cs.Write(inData, 0, inData.Length)
cs.FlushFinalBlock()
Finally
cs.Dispose()
End Try
Return Convert.ToBase64String(ms.ToArray())
Catch
End Try
Finally
ms.Dispose()
End Try
End Function 'Encrypt
'/ summary
'/ 对DES加密后的字符串进行解密
'/ /summary
'/ param name="encryptedString"待解密的字符串/param
'/ returns解密后的字符串/returns
【vb.net文本加密 vb加密字符串】Public Function Decrypt(encryptedString As String) As String
Dim btKey As Byte() = Encoding.Default.GetBytes(key)
Dim btIV As Byte() = Encoding.Default.GetBytes(iv)
Dim des As New DESCryptoServiceProvider()
Dim ms As New MemoryStream()
Try
Dim inData As Byte() = Convert.FromBase64String(encryptedString)
Try
Dim cs As New CryptoStream(ms, des.CreateDecryptor(btKey, btIV), CryptoStreamMode.Write)
Try
cs.Write(inData, 0, inData.Length)
cs.FlushFinalBlock()
Finally
cs.Dispose()
End Try
Return Encoding.Default.GetString(ms.ToArray())
Catch
End Try
Finally
ms.Dispose()
End Try
End Function 'Decrypt
'/ summary
'/ 对文件内容进行DES加密
'/ /summary
'/ param name="sourceFile"待加密的文件绝对路径/param
'/ param name="destFile"加密后的文件保存的绝对路径/param
Overloads Public Sub EncryptFile(sourceFile As String, destFile As String)
If Not File.Exists(sourceFile) Then
Throw New FileNotFoundException("指定的文件路径不存在！", sourceFile)
End If
Dim btKey As Byte() = Encoding.Default.GetBytes(key)
Dim btIV As Byte() = Encoding.Default.GetBytes(iv)
Dim des As New DESCryptoServiceProvider()
Dim btFile As Byte() = File.ReadAllBytes(sourceFile)
Dim fs As New FileStream(destFile, FileMode.Create, FileAccess.Write)
Try
Try
Dim cs As New CryptoStream(fs, des.CreateEncryptor(btKey, btIV), CryptoStreamMode.Write)
Try
cs.Write(btFile, 0, btFile.Length)
cs.FlushFinalBlock()
Finally
cs.Dispose()
End Try
Catch
Finally
fs.Close()
End Try
Finally
fs.Dispose()
End Try