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Quick and easy encryption

Quick and easy encryption

Rate Quick and easy encryption

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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) + 1)
    Next I
    Encrypt = Plain
End Function
'Here's the Decryption 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) - 1)
    Next I
    Decrypt = Encrypted
End Function

'here is sample code to test it....
Dim strMessage As String
strMessage = "Original:"
strMessage = strMessage & "This is a test" & vbCrLf
strMessage = strMessage & vbCrLf & "Encrypted:"
strMessage = strMessage & Encrypt("This is a test") & vbCrLf
strMessage = strMessage & vbCrLf & "Un-Encrypted:"
strMessage = strMessage & Decrypt(Encrypt("This is a test"))
MsgBox strMessage