1
2 Imports System.Data.SqlClient
3 Imports System.Security.Cryptography
4 Imports System.IO
5 Imports System.Text
6 Imports System.Collections.Generic
7 Module ModFunc
8 Sub LogFunc(ByVal st1 As String, ByVal st2 As String)
9 con = New SqlConnection(cs)
10 con.Open()
11 Dim cb As String = "insert into Logs(UserID,Date,Operation) VALUES (@d1,@d2,@d3)"
12 cmd = New SqlCommand(cb)
13 cmd.Connection = con
14 cmd.Parameters.AddWithValue("@d1", st1)
15 cmd.Parameters.AddWithValue("@d2", System.DateTime.Now)
16 cmd.Parameters.AddWithValue("@d3", st2)
17 cmd.ExecuteReader()
18 con.Close()
19 End Sub
20 Public Function Encrypt(password As String) As String
21 Dim strmsg As String = String.Empty
22 Dim encode As Byte() = New Byte(password.Length - 1) {}
23 encode = Encoding.UTF8.GetBytes(password)
24 strmsg = Convert.ToBase64String(encode)
25 Return strmsg
26 End Function
27
28 Public Function Decrypt(encryptpwd As String) As String
29 Dim decryptpwd As String = String.Empty
30 Dim encodepwd As New UTF8Encoding()
31 Dim Decode As Decoder = encodepwd.GetDecoder()
32 Dim todecode_byte As Byte() = Convert.FromBase64String(encryptpwd)
33 Dim charCount As Integer = Decode.GetCharCount(todecode_byte, 0, todecode_byte.Length)
34 Dim decoded_char As Char() = New Char(charCount - 1) {}
35 Decode.GetChars(todecode_byte, 0, todecode_byte.Length, decoded_char, 0)
36 decryptpwd = New [String](decoded_char)
37 Return decryptpwd
38 End Function
39 End Module
