Encrypted Data
时间: 2023-12-20 15:30:40 浏览: 161
data encryption
根据提供的引用内容,Encrypted Data是指经过加密处理的数据。加密是一种将原始数据转换为密文的过程,以保护数据的安全性和隐私性。加密算法可以分为对称加密和非对称加密两种类型。对称加密使用相同的密钥进行加密和解密,而非对称加密则使用公钥和私钥进行加密和解密。
在VB .Net中,可以使用加密类库来实现数据加密和解密。例如,可以使用System.Security.Cryptography命名空间中的类来实现对称加密和非对称加密。下面是一个使用AES对称加密算法加密数据的例子:
```vb.net
Imports System.Security.Cryptography
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim plainText As String = "Hello World!"
Dim password As String = "MyPassword"
Dim salt As String = "MySalt"
Dim iterations As Integer = 1000
Dim keyGenerator As New Rfc2898DeriveBytes(password, System.Text.Encoding.UTF8.GetBytes(salt), iterations)
Dim key As Byte() = keyGenerator.GetBytes(16)
Dim iv As Byte() = keyGenerator.GetBytes(16)
Dim aes As New AesCryptoServiceProvider()
aes.Key = key
aes.IV = iv
Dim encryptor As ICryptoTransform = aes.CreateEncryptor()
Dim plainBytes As Byte() = System.Text.Encoding.UTF8.GetBytes(plainText)
Dim cipherBytes As Byte() = encryptor.TransformFinalBlock(plainBytes, 0, plainBytes.Length)
Dim cipherText As String = Convert.ToBase64String(cipherBytes)
MessageBox.Show("Encrypted Data: " & cipherText)
End Sub
End Class
```
在上面的例子中,我们使用Rfc2898DeriveBytes类生成密钥和初始化向量,然后使用AesCryptoServiceProvider类创建加密器,最后将加密后的数据转换为Base64字符串输出。
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