by Pat-Dog (1 Submission)
Category: Encryption
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Wed 14th March 2001
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Encryption and decryption program
API Declarations
'you need to make 2 command boxes called command1 and command2, also a text box called text1 and a label called label1
'click command1 to encrypt some text that u type in and save to file on c drive
click command2 to decrypt it from the file and bring it to the label
VBcoders
Public Function Encrypt(ByVal Plain As String)
Dim Letter As String
For i = 1 To Len(Plain)
Letter = Mid$(Plain, i, 1)
Mid$(Plain, i, 1) = Chr(Asc(Letter) + 99)
Next i
Encrypt = Plain
End Function
Public Function Decrypt(ByVal Encrypted As String)
Dim Letter As String
For i = 1 To Len(Encrypted)
Letter = Mid$(Encrypted, i, 1)
Mid$(Encrypted, i, 1) = Chr(Asc(Letter) - 99)
Next i
Decrypt = Encrypted
End Function
Private Sub Command1_Click()
password = Text1.Text
password = Encrypt(password)
Open "c:\file.txt" For Output As #1
Print #1, password
Close #1
End Sub
Private Sub Command2_Click()
Open "c:\file.txt" For Input As #1
Input #1, password
Close #1
password = Decrypt(password)
Label1.Caption = password
End Sub
