Title: Very simple and useless encryption/decryption in vb.net! Source included
Post by: Alex1212 on July 04, 2015, 03:14:32 PM
https://i.imgur.com/xSeD9vq.pngbinary: www(dot)mediafire(dot)com/download/pr7f00rz874x82c/CryptEX.exe Pretty useless, but i thought i would share:) Imports System.Security.Cryptography
Imports System.Text
Imports Microsoft.VisualBasic
Public Class Form1
Private Shared Function GetMD5Hash(ByVal md5hash As MD5, ByVal input As String) As String
Dim data As Byte() = md5hash.ComputeHash(Encoding.UTF8.GetBytes(input))
Dim sBuilder As New StringBuilder()
For i As Integer = 0 To data.Length - 1
sBuilder.Append(data(i).ToString("x2"))
Next i
Return sBuilder.ToString()
End Function
Public Shared Function CompareThem(ByVal hashedStr As String, ByVal str As String) As Boolean
Dim md5hash As MD5 = MD5.Create()
Dim comparer As StringComparer = StringComparer.OrdinalIgnoreCase
If comparer.Compare(hashedStr, GetMD5Hash(md5hash, str)) = 0 Then
Return True
Else
Return False
End If
End Function
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
If RadioButton1.Checked Then Label1.Text = "MD5"
If RadioButton1.Checked Then Button2.Enabled = False
If RadioButton2.Checked Then Label1.Text = "BASE64"
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
If RadioButton1.Checked Then
Dim input As String
input = TextBox1.Text
Dim hash As String = ""
Using md5hash As MD5 = MD5.Create()
hash = GetMD5Hash(md5hash, Input)
End Using
TextBox2.Text = hash
End If
If RadioButton2.Checked Then
Dim base64Decoded As String = TextBox1.Text
Dim base64Encoded As String
Dim data As Byte()
data = System.Text.ASCIIEncoding.ASCII.GetBytes(base64Decoded)
base64Encoded = System.Convert.ToBase64String(data)
TextBox2.Text = base64Encoded
End If
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
If RadioButton2.Checked = True Then
Dim base64Encoded As String = TextBox1.Text
Dim base64Decoded As String
Dim data() As Byte
data = System.Convert.FromBase64String(base64Encoded)
base64Decoded = System.Text.ASCIIEncoding.ASCII.GetString(data)
TextBox2.Text = base64Decoded
End If
End Sub
End Class
Title: Re: Very simple and useless encryption/decryption in vb.net! Source included
Post by: scarsbergholden on July 04, 2015, 05:04:41 PM
Cool, i give it a try sometimes some of the simple software out there gets a bad rep just because is not backed by someone or a community is up to users to give some exposure not every will find it useless but for some it will work.
Title: Re: Very simple and useless encryption/decryption in vb.net! Source included
Post by: hexafraction on July 04, 2015, 07:22:45 PM
This is neither encryption nor decryption. MD5 is a (crappy) hashing method, Base64 is an encoding method that is not designed to be secure against eavesdropping (but rather, as a way to prevent corruption by some mailservers that messed with non-text characters).
Title: Re: Very simple and useless encryption/decryption in vb.net! Source included
Post by: noel57 on July 05, 2015, 05:15:43 AM
https://i.imgur.com/xSeD9vq.pngbinary: www(dot)mediafire(dot)com/download/pr7f00rz874x82c/CryptEX.exe Pretty useless, but i thought i would share:) Imports System.Security.Cryptography
Imports System.Text
Imports Microsoft.VisualBasic
Public Class Form1
Private Shared Function GetMD5Hash(ByVal md5hash As MD5, ByVal input As String) As String
Dim data As Byte() = md5hash.ComputeHash(Encoding.UTF8.GetBytes(input))
Dim sBuilder As New StringBuilder()
For i As Integer = 0 To data.Length - 1
sBuilder.Append(data(i).ToString("x2"))
Next i
Return sBuilder.ToString()
End Function
Public Shared Function CompareThem(ByVal hashedStr As String, ByVal str As String) As Boolean
Dim md5hash As MD5 = MD5.Create()
Dim comparer As StringComparer = StringComparer.OrdinalIgnoreCase
If comparer.Compare(hashedStr, GetMD5Hash(md5hash, str)) = 0 Then
Return True
Else
Return False
End If
End Function
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
If RadioButton1.Checked Then Label1.Text = "MD5"
If RadioButton1.Checked Then Button2.Enabled = False
If RadioButton2.Checked Then Label1.Text = "BASE64"
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
If RadioButton1.Checked Then
Dim input As String
input = TextBox1.Text
Dim hash As String = ""
Using md5hash As MD5 = MD5.Create()
hash = GetMD5Hash(md5hash, Input)
End Using
TextBox2.Text = hash
End If
If RadioButton2.Checked Then
Dim base64Decoded As String = TextBox1.Text
Dim base64Encoded As String
Dim data As Byte()
data = System.Text.ASCIIEncoding.ASCII.GetBytes(base64Decoded)
base64Encoded = System.Convert.ToBase64String(data)
TextBox2.Text = base64Encoded
End If
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
If RadioButton2.Checked = True Then
Dim base64Encoded As String = TextBox1.Text
Dim base64Decoded As String
Dim data() As Byte
data = System.Convert.FromBase64String(base64Encoded)
base64Decoded = System.Text.ASCIIEncoding.ASCII.GetString(data)
TextBox2.Text = base64Decoded
End If
End Sub
End Class
I wonder why you give the software such a terrible title Very simple and useless encryption/decryption in vb.net! it could useful someday, just keep it.
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