by balu (2 Submissions)
Category: String Manipulation
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Tue 1st November 2005
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
It encrypts and decrypts given string using simple logic.
VBcoders
// This code works depending on the ascii value of the character
Private Sub cmddecrypt_Click()
Dim str1 As String
Dim strencrypt As String
Dim str1len As Integer
Dim chr1 As String
Dim i As Integer
Dim ascii As Integer
strencrypt = ""
str1 = cb.List(cb.ListIndex)
Debug.Print str1
str1len = Len(str1)
If str1len <> 0 Then
For i = 1 To str1len
chr1 = Mid(str1, i, 1)
ascii = Asc(chr1)
If ascii < 150 And ascii > 40 Then
ascii = ascii - 10
End If
strencrypt = strencrypt & Chr(ascii)
Next i
MsgBox "Decrypted string " & strencrypt, vbInformation + vbOKOnly, "Decrypt"
Else
MsgBox "Select a string to decrypt", vbInformation + vbOKOnly
End If
End Sub
Private Sub cmdencrypt_Click()
Dim str1 As String
Dim strencrypt As String
Dim str1len As Integer
Dim chr1 As String
Dim i As Integer
Dim ascii As Integer
strencrypt = ""
str = Trim(InputBox("Enter a string", "Encrypt"))
str1 = str
str1len = Len(str1)
If str1len <> 0 Then
For i = 1 To str1len
chr1 = Mid(str1, i, 1)
ascii = Asc(chr1)
If ascii < 150 And ascii > 40 Then
ascii = ascii + 10
End If
strencrypt = strencrypt & Chr(ascii)
Next i
cb.AddItem strencrypt
MsgBox "String Encrypted successfully!", vbInformation + vbOKOnly, "Encrypt"
Else
MsgBox "Enter a string", vbInformation + vbOKOnly
End If
End Sub
Private Sub Form_Load()
cmdencrypt.Caption = "Encrypt"
cmddecrypt.Caption = "Decrypt"
End Sub
