Master of Science thesis Fighting Spam

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"MenuItem.borderPainted", true //"MenuItem.commandSound", sounds/MenuItemCommand.wav //"MenuItem.disabledForeground", new ColorUIResource(0,0,0), //"MenuItem.font", font1, //"MenuItem.foreground", new ColorUIResource(0,0,0), //"MenuItem.margin", javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,right=2] //"MenuItem.selectionBackground", new ColorUIResource(0,0,0), //"MenuItem.selectionForeground", new ColorUIResource(0,0,0), //"MenuItemUI", javax.swing.plaf.basic.BasicMenuItemUI //"menuText", new ColorUIResource(0,0,0), //"MenuUI", javax.swing.plaf.basic.BasicMenuUI //"OptionPane.background", new ColorUIResource(0,0,0), //"OptionPane.border", javax.swing.plaf.BorderUIResource$EmptyBorderUIResource@1b09468 //"OptionPane.buttonAreaBorder", javax.swing.plaf.BorderUIResource$EmptyBorderUIResource@e94e92 //"OptionPane.buttonClickThreshhold", 500 //"OptionPane.errorDialog.border.background", new ColorUIResource(0,0,0), //"OptionPane.errorDialog.titlePane.background", new ColorUIResource(0,0,0), //"OptionPane.errorDialog.titlePane.foreground", new ColorUIResource(0,0,0), //"OptionPane.errorDialog.titlePane.shadow", new ColorUIResource(0,0,0), //"OptionPane.errorIcon", javax.swing.plaf.IconUIResource@166a22b //"OptionPane.errorSound", sounds/OptionPaneError.wav //"OptionPane.font", font1, //"OptionPane.foreground", new ColorUIResource(0,0,0), //"OptionPane.informationIcon", javax.swing.plaf.IconUIResource@1f6f296 //"OptionPane.informationSound", sounds/OptionPaneInformation.wav //"OptionPane.messageAreaBorder", javax.swing.plaf.BorderUIResource$EmptyBorderUIResource@8bdcd2 //"OptionPane.messageForeground", new ColorUIResource(0,0,0), //"OptionPane.minimumSize", javax.swing.plaf.DimensionUIResource[width=262,height=90] //"OptionPane.questionDialog.border.background", new ColorUIResource(0,0,0), //"OptionPane.questionDialog.titlePane.background", new ColorUIResource(0,0,0), //"OptionPane.questionDialog.titlePane.foreground", new ColorUIResource(0,0,0), //"OptionPane.questionDialog.titlePane.shadow", new ColorUIResource(0,0,0), //"OptionPane.questionIcon", javax.swing.plaf.IconUIResource@3570b0 //"OptionPane.questionSound", sounds/OptionPaneQuestion.wav //"OptionPane.warningDialog.border.background", new ColorUIResource(0,0,0), //"OptionPane.warningDialog.titlePane.background", new ColorUIResource(0,0,0), //"OptionPane.warningDialog.titlePane.foreground", new ColorUIResource(0,0,0), //"OptionPane.warningDialog.titlePane.shadow", new ColorUIResource(0,0,0), //"OptionPane.warningIcon", javax.swing.plaf.IconUIResource@62937c //"OptionPane.warningSound", sounds/OptionPaneWarning.wav //"OptionPane.windowBindings", [Ljava.lang.Object;@1e893df //"OptionPaneUI", javax.swing.plaf.basic.BasicOptionPaneUI "Panel.background", panelBackground, //"Panel.font", font1, //"Panel.foreground", new ColorUIResource(0,0,0), //"PanelUI", javax.swing.plaf.basic.BasicPanelUI "PasswordField.background", textFieldBackgroundColor, "PasswordField.border", BorderFactory.createMatteBorder(textFieldBorderSize, textFieldBorderSize, textFieldBorderSize, textFieldBorderSize, textFieldBorderColor), "PasswordField.caretBlinkRate", new Integer(150), "PasswordField.caretForeground", textFieldForegroundColor, //"PasswordField.focusInputMap", javax.swing.plaf.InputMapUIResource@a1807c //"PasswordField.font", font1, "PasswordField.foreground", textFieldForegroundColor, //"PasswordField.inactiveBackground", new ColorUIResource(0,0,0), //"PasswordField.inactiveForeground", new ColorUIResource(0,0,0), //"PasswordField.margin", javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0] //"PasswordField.selectionBackground", new ColorUIResource(0,0,0), //"PasswordField.selectionForeground", new ColorUIResource(0,0,0), //"PasswordFieldUI", javax.swing.plaf.basic.BasicPasswordFieldUI //"PopupMenu.background", new ColorUIResource(0,0,0), //"PopupMenu.border", javax.swing.plaf.metal.MetalBorders$PopupMenuBorder@861f24 //"PopupMenu.font", font1, //"PopupMenu.foreground", new ColorUIResource(0,0,0), //"PopupMenu.popupSound", sounds/PopupMenuPopup.wav 228
"PopupMenu.selectedWindowInputMapBindings", [Ljava.lang.Object;@1d4c61c //"PopupMenu.selectedWindowInputMapBindings.RightToLeft", [Ljava.lang.Object;@121cc40 //"PopupMenuSeparatorUI", javax.swing.plaf.metal.MetalPopupMenuSeparatorUI //"PopupMenuUI", javax.swing.plaf.basic.BasicPopupMenuUI "ProgressBar.background", backgroundColor, "ProgressBar.border", new BorderUIResource(BorderFactory.createMatteBorder(1,1,1,1,borderColor2)), //"ProgressBar.cellLength", new Integer(5), //"ProgressBar.cellSpacing", new Integer(5), //"ProgressBar.cycleTime", 3000 "ProgressBar.font", font1, "ProgressBar.foreground", textFieldBorderColor, //"ProgressBar.repaintInterval", 50 "ProgressBar.selectionBackground", textFieldBorderColor, "ProgressBar.selectionForeground", backgroundColor, //"ProgressBarUI", javax.swing.plaf.metal.MetalProgressBarUI //"RadioButton.background", new ColorUIResource(0,0,0), //"RadioButton.border", javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@3eca90 //"RadioButton.darkShadow", new ColorUIResource(0,0,0), //"RadioButton.disabledText", new ColorUIResource(0,0,0), //"RadioButton.focus", new ColorUIResource(0,0,0), //"RadioButton.focusInputMap", javax.swing.plaf.InputMapUIResource@1f14ceb //"RadioButton.font", font1, //"RadioButton.foreground", new ColorUIResource(0,0,0), //"RadioButton.highlight", new ColorUIResource(0,0,0), //"RadioButton.icon", javax.swing.plaf.metal.MetalIconFactory$RadioButtonIcon@503429 //"RadioButton.light", new ColorUIResource(0,0,0), //"RadioButton.margin", javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,right=2] //"RadioButton.select", new ColorUIResource(0,0,0), //"RadioButton.shadow", new ColorUIResource(0,0,0), //"RadioButton.textIconGap", 4 //"RadioButton.textShiftOffset", 0 //"RadioButtonMenuItem.acceleratorFont", font1, //"RadioButtonMenuItem.acceleratorForeground", new ColorUIResource(0,0,0), //"RadioButtonMenuItem.acceleratorSelectionForeground", new ColorUIResource(0,0,0), //"RadioButtonMenuItem.arrowIcon", javax.swing.plaf.metal.MetalIconFactory$MenuItemArrowIcon@1e9cb75 //"RadioButtonMenuItem.background", new ColorUIResource(0,0,0), //"RadioButtonMenuItem.border", javax.swing.plaf.metal.MetalBorders$MenuItemBorder@17ee8b8 //"RadioButtonMenuItem.borderPainted", true //"RadioButtonMenuItem.checkIcon", javax.swing.plaf.metal.MetalIconFactory$RadioButtonMenuItemIcon@1815859 //"RadioButtonMenuItem.commandSound", sounds/MenuItemCommand.wav //"RadioButtonMenuItem.disabledForeground", new ColorUIResource(0,0,0), //"RadioButtonMenuItem.font", font1, //"RadioButtonMenuItem.foreground", new ColorUIResource(0,0,0), //"RadioButtonMenuItem.margin", javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,right=2] //"RadioButtonMenuItem.selectionBackground", new ColorUIResource(0,0,0), //"RadioButtonMenuItem.selectionForeground", new ColorUIResource(0,0,0), //"RadioButtonMenuItemUI", javax.swing.plaf.basic.BasicRadioButtonMenuItemUI //"RadioButtonUI", javax.swing.plaf.metal.MetalRadioButtonUI //"RootPane.colorChooserDialogBorder", javax.swing.plaf.metal.MetalBorders$QuestionDialogBorder@13caecd //"RootPane.defaultButtonWindowKeyBindings", [Ljava.lang.Object;@166aa18 //"RootPane.errorDialogBorder", javax.swing.plaf.metal.MetalBorders$ErrorDialogBorder@11a64ed //"RootPane.fileChooserDialogBorder", javax.swing.plaf.metal.MetalBorders$QuestionDialogBorder@1174b07 //"RootPane.frameBorder", javax.swing.plaf.metal.MetalBorders$FrameBorder@18f6235 //"RootPane.informationDialogBorder", javax.swing.plaf.metal.MetalBorders$DialogBorder@197a37c //"RootPane.plainDialogBorder", javax.swing.plaf.metal.MetalBorders$DialogBorder@115273a //"RootPane.questionDialogBorder", javax.swing.plaf.metal.MetalBorders$QuestionDialogBorder@1f934ad //"RootPane.warningDialogBorder", javax.swing.plaf.metal.MetalBorders$WarningDialogBorder@19b5393 //"RootPaneUI", javax.swing.plaf.metal.MetalRootPaneUI //"scrollbar", new ColorUIResource(0,0,0), //"ScrollBar.allowsAbsolutePositioning", true 229
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IMM, DTU, Projekt nummer: 19 1. Apr
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Indholdsfortegnelse 1 Indledning...
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6.8.2 Blacklistserver..............
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10.1.4.e ErrorDialog...............
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Abstract Up until now spam email ha
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syvende og sidst er det dog op til
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Denne definition kan virke en smule
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3 Spambekæmpelse I dette afsnit vi
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fange de allerførste spammails af
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kaldes list-splitting [15] og benyt
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uger afgør, om en modtaget email k
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om retslige forhold i afsnit 3.6).
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Systemet minder om en simpel løsni
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De mest udbredte løsninger på spa
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paradoks, men et måske ikke så in
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(a) Original (a) Original (a) Origi
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4.3 Asymmetrisk kryptografi Et af d
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4.4 Blinde signaturer i RSA Blinde
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De resterende dele af denne rapport
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5.4 Betalingssystemer Når et nyt b
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Brugere af et offline system kan ik
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I systemet præsenteret af Tewari,
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At opdele informationen om brugerne
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- Proxyprogrammet skal tilbyde sikk
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En bruger af systemet vælger at in
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6 Design 6.1 Systemstruktur I analy
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(bl.a. i afsnit 6.3.2.a) beskrives
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6.3.1 Betaling I afsnit 5.2 blev de
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Serienummeret benyttes til detektio
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6.3.3 Økonomisk misbrug 6.3.3.a Mo
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Indløsning af stjålne mønter Nå
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Figur 12 C kopierer en mønt og ind
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kopi af mønten, eller en mønt hvo
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meget tæt på 0. I praksis er en b
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6.6.5 Use Case 4a: Afsend email Sce
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6.6.10 Use Case 8: Indløs penge Ud
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6.7.2 Netværkssikkerhed I det føl
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6.8 Kommunikationsprotokoller og se
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Ved at give klienterne mulighed for
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to måder. Pengeserveren opretter f
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synes det rimeligt at antage, at kl
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Mere konkret udfører pengeserveren
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Figur 22 - Oprettelsesproceduren, h
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telnet mail.ishoejby.dk 25 220-Welc
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med mailserveren og overtage dennes
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lov at slippe igennem. Skulle det s
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vigtigste objekter for at give et o
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Figur 26 getSafe()-funktionen. Denn
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Det uddybes nu præcis hvilke signa
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Modtagelse af email i IMAP (Use Cas
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Figur 32 Diagrammet viser, hvordan
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Kopiering af penge Det vil altid v
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mønter. Mere kritisk er det, hvis
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7 Implementation Med udgangspunkt i
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protokollen beskrevet i afsnit 4.4
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oprettelse. Først når brugeren tr
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Figur 34 Klassediagram for Proxy-pa
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Figur 35 Klassediagram for serverpa
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udskrevet i terminalen. Findes der
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ved at udføre trin 7 og trin 8). H
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8 Evaluering Formålet med at imple
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- Indkasser SpamCash . Brugeren mar
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I alle følgende Modtag email -case
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færdig. Derudover blev der sendt o
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- CurrencyBlindingFactorPacket(Blin
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RS Registreringsserver Registrering
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I pengeserveren skal det fastsætte
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Oprettelsesbeløb Oprettelse i syst
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ingen vil benytte systemet. At skul
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8.3.1.a Emailhåndtering SpamCash-s
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klienten brug for mindre, kunne den
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af systemet checker mail døgnet ru
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9 Konklusion Dette afsluttende kapi
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Som systemet er nu, udføres automa
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Appendiks A Installationsvejledning
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A.2 Installation og start af klient
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A.6.2 OpenSSL Oprettelse af certifi
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Appendiks B Brugsvejledning B.1 Spa
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For at starte registreringsprocedur
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Figur 43 Hovedvinduet under fanebla
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Figur 46 Fejlbesked ved åbning af
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Under møntantallene kan ses en lis
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Sker der en fejl eller er det ikke
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Figur 55 B.6.5 Opdater whitelist Di
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Appendiks C Litteratur I følgende
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[45] Levente Buttyán and Jean-Pier
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SpamCash 175
Page 179 and 180: GUI 177
Page 181 and 182: MailHandler 179
Page 183 and 184: Safe 181
Page 185 and 186: NetworkPackets 183
Page 187 and 188: CES 185
Page 189 and 190: Utilities 187
Page 191 and 192: Appendiks E Logfil Herunder ses et
Page 193 and 194: Appendiks F Maple kode Herunder ses
Page 195 and 196: Appendiks G Matlab kode I dette app
Page 197 and 198: Appendiks H JAVA Kode I dette bilag
Page 199 and 200: 10.4.4 BLS ........................
Page 201 and 202: 10 Kildekode 10.1 Client 10.1.1 Con
Page 203 and 204: throw new Exception("Error"); regis
Page 205 and 206: NotificationHeader header = new Not
Page 207 and 208: catch(ConnectException ex) { error
Page 209 and 210: throw new Exception( "An error has
Page 211 and 212: } Debugger.debug(getClass(), 1, "Co
Page 213 and 214: } MimeMessage ext2 = MimeTools.read
Page 215 and 216: addType1(c, privkey2, address4); ad
Page 217 and 218: public CurrencyExchangeClient() thr
Page 219 and 220: } return(int) (amount / Config.coin
Page 221 and 222: private PlusMinusListener plusMinus
Page 223 and 224: } } } setText(updateField(getText()
Page 225 and 226: } catch(Exception e) { return false
Page 227 and 228: "CheckBoxMenuItem.acceleratorSelect
Page 229: "InternalFrame.minimizeIcon", javax
Page 233 and 234: "TabbedPane.focusInputMap", javax.s
Page 235 and 236: "Tree.focusInputMap", javax.swing.p
Page 237 and 238: } } UIDefaults uiDefaults = UIManag
Page 239 and 240: } } } } 10.1.4.e ErrorDialog packag
Page 241 and 242: } } } labels[i].setHorizontalTextPo
Page 243 and 244: y = (buttonHeight - (int) bounds.ge
Page 245 and 246: "file.separator") "corner.gif")); s
Page 247 and 248: public void updateMailList() { if(s
Page 249 and 250: } else safeDialog.show(OpenSafeDial
Page 251 and 252: } } browsePanel.setLayout(new Borde
Page 253 and 254: } { } Dimension screenSize = Toolki
Page 255 and 256: } } { } System.out.println("Couldn'
Page 257 and 258: if(logonPanel.textFields[1].getText
Page 259 and 260: } } add(Box.createVerticalStrut(Def
Page 261 and 262: } } Dimension screenSize = Toolkit.
Page 263 and 264: } } } list.setListData(control.getW
Page 265 and 266: } public Signature getRecipientSign
Page 267 and 268: Updating Blacklist control.updateBl
Page 269 and 270: Debugger.debug(getClass(), 1,"Sende
Page 271 and 272: public OutgoingMailProcessor(Contro
Page 273 and 274: } InetAddress remoteAddress = clien
Page 275 and 276: } } } catch(IOException ex) { Debug
Page 277 and 278: if(status == 2) { connections.remov
Page 279 and 280: } if(parseArgument(command, 1).equa
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import SpamCash.Utilities.*; import
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Decode buffer decoder.decode(buffer
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} } } private String getName(Socket
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private void waitForAuthentication(
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} } index++; 287 index == numberOfM
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{ } if(argument.equals("")) { long
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} long numMessages = getNumberOfMes
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*/ private void handleUidl(String a
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} } return totalSize; /** * Gets th
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} buffers = 0; //command = partialM
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} Debugger.debug(getClass(),1,"FATA
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public void sentCoin(long serial,Ad
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public class SafeHandler implements
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} private Coin[] mergeCoinArrays(Co
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keyBytes = (byte[]) in.readObject()
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EarnedCoin ec = (EarnedCoin) usedCo
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10.2.2 Coin package SpamCash.Curren
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{ } this.value = value; this.maxNum
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this.transactionList = new Unencryp
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{ } return; public boolean verify(C
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public TransactionlistElement(Trans
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} } try { this.list.addElement(new
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} } if(elem.getCertificate().equals
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} public String toString() { return
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RSABlindingFactor[][] rsabf = new R
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10.3.11 LogonPacket package SpamCas
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} } for(int i=0;i
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10.4 Servers 10.4.1 AbstractServer
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} key); key); key); } catch(IOExcep
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public boolean needUpdate() { long
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if(a.getSerialNumber() != b.getSeri
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{ private BlackListServer BLS; priv
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System.out.println("withdrawFromUpF
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public CESCommunicationThread(Curre
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import SpamCash.Utilities.Debugger;
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} } else reportCoins(pack.coins[i],
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Exception { Debugger.debug(getClass
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f)) try { coin.insertValues(Config.
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public PendingAccounts pendingAccou
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} InputStream in = process.getError
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"Certificate for activationNumber:
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} public static void main(String[]
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} } } 10.5 Utilities } Debugger.deb
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} // end try catch (java.io.Unsuppo
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destination[ destOffset ] = ALPHABE
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* @see Base64#DONT_BREAK_LINES * @s
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} // end encodeBytes /* ******** D
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} // end if: equals sign or better
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* @param filename Filename for savi
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int numBytes = 0; // Open a stream
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); else { return -1; } // end else
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** * Constructs a {@link Base64.Out
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{ if( position > 0 ) { if( encode )
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public final static String blacklis
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System.out.println("Encrypted mail:
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} public static boolean verify(RSAP
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*----------------------------------
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} System.out.println(); private sta
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{ java.security.cert.Certificate ce
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} } return null; public static void
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try { FileInputStream iFile = new F
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} File files[] = f.listFiles(); for
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} { } //Make the normal log-file lo
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{ } FileInputStream is = new FileIn
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} } if(object instanceof Multipart)
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} //Debugger.debug(className,3,"Coi
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} found !"); newmp.addBodyPart((Mim
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{ } ByteArrayOutputStream bOut = ne
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} } public synchronized MimePacket
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} } } Debugger.debug(getClass(),3,"
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} SafeHandler safe = new SafeHandle
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} { blacklist = new Blacklist(); up
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