यहाँ des3 एन्क्रिप्शन
''' <summary>
''' Encrypts a memory string (i.e. variable).
''' </summary>
''' <param name="data">String to be encrypted.</param>
''' <param name="key">Encryption key.</param>
''' <param name="iv">Encryption initialization vector.</param>
''' <returns>Encrypted string.</returns>
Public Shared Function Encrypt(ByVal data As String, ByVal key As String, ByVal iv As String) As String
Dim bdata As Byte() = Encoding.ASCII.GetBytes(data)
Dim bkey As Byte() = HexToBytes(key)
Dim biv As Byte() = HexToBytes(iv)
Dim stream As MemoryStream = New MemoryStream
Dim encStream As CryptoStream = New CryptoStream(stream, des3.CreateEncryptor(bkey, biv), CryptoStreamMode.Write)
encStream.Write(bdata, 0, bdata.Length)
encStream.FlushFinalBlock()
encStream.Close()
Return BytesToHex(stream.ToArray())
End Function
''' <summary>
''' Decrypts a memory string (i.e. variable).
''' </summary>
''' <param name="data">String to be decrypted.</param>
''' <param name="key">Original encryption key.</param>
''' <param name="iv">Original initialization vector.</param>
''' <returns>Decrypted string.</returns>
Public Shared Function Decrypt(ByVal data As String, ByVal key As String, ByVal iv As String) As String
Dim bdata As Byte() = HexToBytes(data)
Dim bkey As Byte() = HexToBytes(key)
Dim biv As Byte() = HexToBytes(iv)
Dim stream As MemoryStream = New MemoryStream
Dim encStream As CryptoStream = New CryptoStream(stream, des3.CreateDecryptor(bkey, biv), CryptoStreamMode.Write)
encStream.Write(bdata, 0, bdata.Length)
encStream.FlushFinalBlock()
encStream.Close()
Return Encoding.ASCII.GetString(stream.ToArray())
End Function
ROT13। यह भी बहुत कुशल है! –
मेरी पोस्ट यहां देखें: [http://stackoverflow.com/questions/202011/encrypt-decrypt-string-in-c](httpoverstow.com/questions/202011/encrypt-decrypt-string-in- सी) – NotDan
यह जांचें [एन्क्रिप्शन ट्यूटोरियल] (http://msdn.microsoft.com/en-us/library/aa302405.aspx)। –