📄 endedemo.frm
字号:
VERSION 5.00
Begin VB.Form frmEnDeDemo
BorderStyle = 1 'Fixed Single
Caption = "Serial code, key code, encryption and decryption"
ClientHeight = 5475
ClientLeft = 45
ClientTop = 330
ClientWidth = 5145
LinkTopic = "Form1"
LockControls = -1 'True
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 5475
ScaleWidth = 5145
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton cmdExit
BackColor = &H80000004&
Caption = "Exit"
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 405
Left = 2100
Style = 1 'Graphical
TabIndex = 13
ToolTipText = "Generate TV key code"
Top = 4800
Width = 1365
End
Begin VB.CommandButton cmdGetPass
BackColor = &H80000004&
Caption = "Get pass"
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 3510
Style = 1 'Graphical
TabIndex = 12
ToolTipText = "Verify user entered key code"
Top = 4170
Width = 1365
End
Begin VB.TextBox txbTestPassword
BackColor = &H80000018&
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H80000002&
Height = 345
Left = 210
TabIndex = 11
Top = 4140
Width = 3045
End
Begin VB.TextBox txbEncryptedKeyCode
BackColor = &H80000018&
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H80000002&
Height = 345
Left = 240
TabIndex = 8
Top = 2760
Width = 3015
End
Begin VB.CommandButton cmdEncryptKeyCode
BackColor = &H80000004&
Caption = "Encrypt"
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 3510
Style = 1 'Graphical
TabIndex = 7
ToolTipText = "Encrypt key code"
Top = 2760
Width = 1365
End
Begin VB.CommandButton cmdGenKeyCode
BackColor = &H80000004&
Caption = "Gen Keycode"
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 3510
Style = 1 'Graphical
TabIndex = 6
ToolTipText = "Generate key code"
Top = 1890
Width = 1365
End
Begin VB.TextBox txbKeyCode
BackColor = &H80000018&
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H80000002&
Height = 345
Left = 240
Locked = -1 'True
TabIndex = 2
TabStop = 0 'False
Top = 1890
Width = 3045
End
Begin VB.CommandButton cmdGenSerialCode
BackColor = &H80000004&
Caption = "Gen Serial"
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 3510
Style = 1 'Graphical
TabIndex = 1
ToolTipText = "Generate serial number"
Top = 1080
Width = 1395
End
Begin VB.TextBox txbSerialCode
BackColor = &H80000018&
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H80000002&
Height = 345
Left = 240
Locked = -1 'True
TabIndex = 0
TabStop = 0 'False
Top = 1080
Width = 3045
End
Begin VB.Label Label5
Caption = $"EnDeDemo.frx":0000
Height = 675
Left = 240
TabIndex = 10
Top = 3360
Width = 4545
End
Begin VB.Label Label4
Caption = "Encrypted key code:"
Height = 225
Left = 240
TabIndex = 9
Top = 2520
Width = 1605
End
Begin VB.Label Label3
Caption = "Key code:"
Height = 225
Left = 270
TabIndex = 5
Top = 1650
Width = 1305
End
Begin VB.Label Label1
Caption = $"EnDeDemo.frx":00BB
BeginProperty Font
Name = "MS Sans Serif"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 645
Left = 300
TabIndex = 4
Top = 60
Width = 4365
End
Begin VB.Label label2
Caption = "Serial code:"
Height = 225
Left = 270
TabIndex = 3
Top = 840
Width = 1305
End
End
Attribute VB_Name = "frmEnDeDemo"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' EnDeDemo.frm
'
' By Herman Liu
'
' ---------------------------------------------------------------------------------------
' This piece of code attempts to serve as an illustration of a few very basic points
' involved in the broad issue of random serial no. generation, key code derivation there-
' from, and encryption and decryption of the key code. It is written in response to
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