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DE19816572A1 - Security module to prevent manipulation of data - Google Patents

  • ️Thu Oct 14 1999

DE19816572A1 - Security module to prevent manipulation of data - Google Patents

Security module to prevent manipulation of data

Info

Publication number
DE19816572A1
DE19816572A1 DE1998116572 DE19816572A DE19816572A1 DE 19816572 A1 DE19816572 A1 DE 19816572A1 DE 1998116572 DE1998116572 DE 1998116572 DE 19816572 A DE19816572 A DE 19816572A DE 19816572 A1 DE19816572 A1 DE 19816572A1 Authority
DE
Germany
Prior art keywords
security module
arrangement according
manipulation
security
ray
Prior art date
1998-04-07
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1998116572
Other languages
German (de)
Inventor
Georges Roussos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Francotyp Postalia GmbH
Original Assignee
Francotyp Postalia GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1998-04-07
Filing date
1998-04-07
Publication date
1999-10-14
1998-04-07 Application filed by Francotyp Postalia GmbH filed Critical Francotyp Postalia GmbH
1998-04-07 Priority to DE1998116572 priority Critical patent/DE19816572A1/en
1999-10-14 Publication of DE19816572A1 publication Critical patent/DE19816572A1/en
Status Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073Special arrangements for circuits, e.g. for protecting identification code in memory
    • G06K19/07309Means for preventing undesired reading or writing from or onto record carriers
    • G06K19/07372Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073Special arrangements for circuits, e.g. for protecting identification code in memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The data security unit has a circuit board (11) on which are mounted a security module (1), a battery (10) and a manipulation circuit (9). The elements are embedded in an X ray absorbent material (2). Positioned over the electronics is an X ray detector (6) and an optical detector (5) that are used together with the manipulation element to prevent illegal changes

Description

Die Erfindung betrifft eine Anordnung für einen Sicherheitsmodul insbesondere zur Verhinderung des Auslesens oder der unberechtigten Manipulation sicherheitsrelevanter Daten. Diese Daten können sicher­ heitsrelevante Teile eines Maschinenprogramms, Guthabenwerte oder andere sicherheitsrelevante Funktionen betreffen.The invention relates to an arrangement for a security module in particular to prevent reading or unauthorized persons Manipulation of security-relevant data. This data can be safe Safety-relevant parts of a machine program, credit values or other security-related functions.

Ein derartiger Modul wird beispielsweise in ASICS in Frankiermaschi­ nen oder Chipkarten für den Geldverkehr oder in Geldautomaten ein­ gesetzt.Such a module is used for example in ASICS in franking machines cards or smart cards for money transactions or in ATMs set.

Zum allgemeinen Schutz und zum Schutz gegen Manipulationen wird der Sicherheitsmodul üblicherweise mit einer aushärtenden Verguß­ masse umgeben, siehe EP 0 717 370 A2. Die Vergußmasse ist in der Regel ein Epoxydharz oder ein anderer geeigneter Plast.For general protection and protection against manipulation the security module usually with a hardening potting surround mass, see EP 0 717 370 A2. The sealing compound is in the Usually an epoxy resin or another suitable plastic.

Damit werden Manipulationen zwar erschwert, jedoch nicht verhindert. Um Manipulationen an einem derartigen Sicherheitsmodul vornehmen zu können, würde man zunächst denselben einer Röntgenuntersu­ chung unterziehen und anschließend an den für einen Zugang geeig­ neten Stellen aufschleifen oder aufbohren.This makes manipulation difficult, but not prevented. To manipulate such a security module to be able to do this, one would first have the same X-ray examination  undergo and then suitable for access Grind or drill open areas.

Weiterhin ist noch eine Beeinflussung über die elektrischen An­ schlüsse möglich.Furthermore there is an influence on the electrical connection conclusions possible.

Eine andere bekannte Schutzmaßnahme besteht darin, den Sicher­ heitsmodul mit einer Folie mit einem mäanderförmigen Leiter hoher Packungsdichte zu umschließen und mit diesem elektrisch zu koppeln, siehe Bennet Yee "Using Secure Coprncessors" May 1994 CMU-CS- 94-149, School of Computer Science Carnegie Mellon University Pittsburgh, page 7.Another known protective measure is the safe unit with a film with a meandering conductor high To enclose packing density and to couple it electrically, see Bennet Yee "Using Secure Coprncessors" May 1994 CMU-CS- 94-149, School of Computer Science Carnegie Mellon University Pittsburgh, page 7.

Der Leiter wird von einer Langlebensdauerbatterie gespeist. Bei Durch­ trennung an irgendeiner Stelle werden der Stromkreis unterbrochen und infolgedessen die sicherheitsrelevanten Daten im Sicherheitsmo­ dul gezielt manipuliert bis hin zur vollständigen Löschung derselben.The conductor is powered by a long-life battery. When through disconnection at any point the circuit is interrupted and consequently the security-relevant data in the security mo dul manipulated to the point of complete deletion of the same.

Zweck der Erfindung ist eine Verbesserung der Manipulations­ sicherheit.The purpose of the invention is to improve the manipulation safety.

Der Erfindung liegt die Aufgabe zugrunde, eine Anordnung zu schaffen die bewirkt, daß Röntgenuntersuchungen verhindert werden und sepa­ rate Versuche mittels Aufbohren oder Aufschleifen nicht zum ge­ wünschten Erfolg führen.The invention has for its object to provide an arrangement which has the effect that x-ray examinations are prevented and sepa Do not try to drill or grind desired success.

Erfindungsgemäß wird diese Aufgabe gemäß dem Hauptanspruch gelöst. Weitere vorteilhafte Merkmale der Erfindung sind den Unteran­ sprüchen zu entnehmen.According to the invention, this object is achieved according to the main claim solved. Further advantageous features of the invention are the Unteran to take sayings.

Aufgrund der fakultativen Staffelung von Schutzhüllen und Detektoren werden je nach Bedürfnis und Aufwandsberechtigung ein sicherer Schutz gegen unberechtigte Manipulationen erreicht.Due to the optional staggering of protective sleeves and detectors become a safer one depending on the need and the right to spend Protection against unauthorized manipulation achieved.

Die Erfindung wird nachstehend am Ausführungsbeispiel näher erläutert.The invention is explained in more detail below using the exemplary embodiment explained.

In der Figur ist ein Längsschnitt durch eine erfindungsgemäße Anord­ nung dargestellt.In the figure is a longitudinal section through an arrangement according to the invention shown.

Zur Vereinfachung und zum leichteren Verständnis ist die Darstellung schematisiert ausgeführt. The illustration is for simplification and easier understanding carried out schematically.  

Gemäß Fig. 1 besteht die erfindungsgemäße Anordnung aus:
Referring to FIG. 1, the inventive arrangement of:

  • - einem Sicherheitsmodul 1 nebst Manipulationsschaltung 9 und Batterie 10, die gemeinsam auf eine Modulplatine 11 aufgesetzt und elektrisch miteinander verknüpft sind,a security module 1 together with manipulation circuit 9 and battery 10 , which are placed together on a module circuit board 11 and are electrically connected to one another,
  • - einer die vorgenannten Baugruppen umgebenden Röntgenstrahlen absorbierenden Hülle 2 a sheath 2 absorbing the x-rays surrounding the aforementioned assemblies
  • - einem Röntgenstrahlen-Detektor 6, einem mäanderförmigen elektri­ schen Leiter 4 und mindestens einem Lichtdetektor 5, der mit einem Lichtleiter 51 gekoppelt ist, und die alle elektrisch mit der Modulplatine 11 verbunden sind,an X-ray detector 6 , a meandering electrical conductor 4 and at least one light detector 5 which is coupled to a light conductor 51 and which are all electrically connected to the module board 11 ,
  • - einer weiteren, lichtundurchlässigen Hülle 3 und- Another, opaque shell 3 and
  • - einem die vorgenannten Bauteile umgebenden, Röntgenstrahlen absorbierenden Gehäuse 7, das auf eine Platine 8 aufgesetzt ist die wiederum elektrisch mit der Modulplatine 11 verbunden ist.- An X-ray absorbing housing 7 surrounding the aforementioned components, which is placed on a circuit board 8 , which in turn is electrically connected to the module circuit board 11 .

Die Manipulationsschaltung 9 ist so beschaffen beziehungsweise pro­ grammiert, daß im Störungsfall sicherheitsrelevante Daten in vorgege­ bener Weise so manipuliert werden, daß der Sicherheitsmodul nicht mehr ordnungsgemäß arbeitet. Die bewußte Manipulation kann auch darin bestehen, das alle sicherheitsrelevanten Daten gelöscht werden. Die Batterie 10 dient zur Stromversorgung des mäanderförmigen Lei­ ters 4 sowie der Manipulationsschaltung 9 und ist als Langlebensdau­ erbatterie ausgeführt.The manipulation circuit 9 is obtained or programmed so that, in the event of a malfunction, security-relevant data are manipulated in a predetermined manner such that the security module no longer works properly. The deliberate manipulation can also consist in the deletion of all security-relevant data. The battery 10 is used to supply power to the meandering conductor 4 and the manipulation circuit 9 and is designed as a long-life battery.

Die Hülle 2 besteht aus einem Gießharz, der mit einem Röntgenstrah­ len absorbierenden Füllstoff aus Blei- und Kupferlegierungen sowie wahlweise weiteren Füllstoffen versetzt ist. Der erste Füllstoff ist vor­ zugsweise eine Mischung aus 85% Mennige -Pb3O4- und 15% Cuprit -Cu2O-. Als weitere Füllstoffe sind wahlweise Quarzpulver, Glaskugeln oder Glasfaser eingesetzt.The shell 2 consists of a casting resin, which is mixed with an X-ray absorbing filler made of lead and copper alloys and optionally other fillers. The first filler is preferably a mixture of 85% red lead -Pb 3 O 4 - and 15% cuprite -Cu 2 O-. Quartz powder, glass balls or glass fiber are used as additional fillers.

Die Hülle 2 kann alternativ auch als Bleimantelgehäuse ausgeführt sein.The casing 2 can alternatively also be designed as a lead jacket housing.

Der Röntgenstrahlen-Detektor 6 außerhalb der Hülle 2 ist mit der Modulplatine 11 und über dieselbe mit der Manipulationsschaltung 9 oder mit dem Sicherheitsmodul 1 direkt elektrisch verbunden.The x-ray detector 6 outside the casing 2 is directly electrically connected to the module board 11 and, via the same, to the manipulation circuit 9 or to the security module 1 .

Dasselbe trifft auf den mäanderförmigen Leiter 4 und den Lichtdetektor 5 zu.The same applies to the meandering conductor 4 and the light detector 5 .

Die Hülle 3 ist lediglich als lichtundurchlässiges Gehäuse ausgeführt, mit dem zusätzlich zu seiner Hauptfunktion - bei Öffnung Auslösung des Lichtdetektors 5 - einerseits ein Augenscheinschutz der Anordnung und andererseits ein Berührungsschutz der eingeschlossenen Detek­ toren erreicht wird.The shell 3 is only designed as an opaque housing, with which in addition to its main function - when opening the light detector 5 - on the one hand a visual protection of the arrangement and on the other hand protection against contact of the included detectors is achieved.

Das Gehäuse 7 ist in diesem Fall vorzugsweise elektromagnetisch abschirmend - Plaste mit Kupfer- und Eisenbeschichtung - ausgeführt und enthält innen eine die nachfolgenden Baugruppen abschirmende Bleiplatte 71. Es kann auch nur vollständig als Bleigehäuse ausgeführt sein.In this case, the housing 7 is preferably electromagnetically shielded - plastics with a copper and iron coating - and contains a lead plate 71 which shields the subsequent assemblies on the inside. It can also be designed entirely as a lead housing.

Die Wirkungsweise wird nach folgend beschrieben.The mode of operation is described as follows.

Wird die gesamte Anordnung mit Röntgenstrahlen bestrahlt und/oder anderen elektromagnetischen Feldern ausgesetzt, so ist auf Grund der Beschaffenheit des Gehäuses 7 nichts erkennbar und der Röntgen­ strahlen-Detektor 6 bleibt inaktiv. Das Gehäuse 7 dient in erster Linie als Schutz bei Routineuntersuchungen durch den Zoll oder andere Kontrolldienste. Wenn sichergestellt ist, daß derartige Untersuchungen für das Gerät unterbleiben, kann das Gehäuse 7 weggelassen werden. Ist das Gehäuse 7 abgenommen und der Teil mit der Hülle 3 wird mit Röntgenstrahlen behandelt, so werden der Röntgenstrahlen-Detektor 6 aktiviert und demzufolge die sicherheitsrelevanten Daten verfälscht beziehungsweise gelöscht.If the entire arrangement is irradiated with X-rays and / or exposed to other electromagnetic fields, nothing can be seen due to the nature of the housing 7 and the X-ray detector 6 remains inactive. The housing 7 serves primarily as protection during routine investigations by customs or other control services. If it is ensured that such tests are not carried out for the device, the housing 7 can be omitted. If the housing 7 is removed and the part with the casing 3 is treated with X-rays, the X-ray detector 6 is activated and, consequently, the security-relevant data is falsified or deleted.

Bei dem Versuch mittels Aufbohren der Hülle 3 werden sowohl der Lichtdetektor 5 als auch der Leiter 4 ausgelöst und die sicherheitsrele­ vanten Daten in analoger Weise wie vorstehend beschrieben unkennt­ lich und damit für weitere Zwecke unmanipulierbar gemacht. Da der Lichtdetektor 5 mit einem Lichtleiter 51 gekoppelt ist, der die gesamte Oberfläche abdecken kann, ist jeglicher Lichteinfall wirksam.In the experiment by boring the casing 3 , both the light detector 5 and the conductor 4 are triggered and the security-relevant data in an analogous manner as described above are made unrecognizable and therefore unmanipulable for other purposes. Since the light detector 5 is coupled to a light guide 51 which can cover the entire surface, any incidence of light is effective.

Schließlich bildet bereits die erste innere Hülle 2 eine sichere Sperre gegen Röntgenuntersuchungen. Finally, the first inner shell 2 already forms a secure barrier against X-ray examinations.

BezugszeichenlisteReference list

11

Sicherheitsmodul
Security module

1111

Modulplatine
Module board

22nd

Hülle aus Gießharz mit Röntgenstrahlen absorbierendem Füllstoff
Cast resin sleeve with X-ray absorbing filler

33rd

lichtundurchlässige Hülle
opaque shell

44th

mäanderförmiger elektrischer Leiter
meandering electrical conductor

55

Lichtdetektor
Light detector

5151

Lichtleiter
Light guide

66

Röntgenstrahlen-Detektor
X-ray detector

77

Röntgenstrahlen absorbierendes Gehäuse
X-ray absorbing housing

7171

Röntgenstrahlen absorbierende Platte im Gehäuse X-ray absorbing plate in the housing

77

88th

Platine
circuit board

99

Manipulationsschaltung
Manipulation circuit

1010th

Batterie
battery

Claims (7)

1. Anordnung für einen Sicherheitsmodul zur Verhinderung des Auslesens oder der unberechtigten Manipulation sicherheitsrelevanter Daten, dadurch gekennzeichnet,
daß der Sicherheitsmodul (1) mindestens von einer Röntgenstrahlen absorbierenden Hülle (2) umgeben und
mit Mitteln (4, 5, 6) zur gezielten Manipulation sicherheitsrelevanter Daten bei mechanischem Eingriff und/oder Röntgenbestrahlung ver­ sehen ist.
1. Arrangement for a security module to prevent reading or unauthorized manipulation of security-relevant data, characterized in that
that the security module ( 1 ) is surrounded by at least one x-ray absorbing shell ( 2 ) and
with means ( 4 , 5 , 6 ) for the targeted manipulation of security-relevant data in the case of mechanical intervention and / or X-ray radiation is seen.
2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Hülle (2) aus Blei besteht.2. Arrangement according to claim 1, characterized in that the sheath ( 2 ) consists of lead. 3. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Hülle (2) aus einem Gießharz mit einem Röntgenstrahlen absorbierenden Füllstoff aus Blei- und Kupfer-Verbindungen sowie wahlweise weiteren Füllstoffen besteht.3. Arrangement according to claim 1, characterized in that the shell ( 2 ) consists of a casting resin with an X-ray absorbing filler made of lead and copper compounds and optionally other fillers. 4. Anordnung nach Anspruch 3, dadurch gekennzeichnet, daß eine Mischung aus 85% Mennige -Pb3O4- und 15% Cuprit -Cu2O- und als weitere Füllstoffe wahlweise Quarzpulver, Glaskugeln oder Glasfaser eingesetzt sind.4. Arrangement according to claim 3, characterized in that a mixture of 85% red lead -Pb 3 O 4 - and 15% cuprite -Cu 2 O- and as additional fillers either quartz powder, glass balls or glass fiber are used. 5. Anordnung nach Anspruch 1, dadurch gekennzeichnet,
daß der Sicherheitsmodul (1) von einer weiteren, lichtundurchlässigen Hülle (3) umgeben ist und
daß im Übergangbereich zwischen dieser Hülle (3) und der Röntgen­ strahlen absorbierenden Hülle (2) wahlweise ein mäanderförmiger elektrischer Leiter (4) oder ein Lichtdetektor (5) nebst Lichtleiter (51) oder ein Röntgenstrahlen-Detektor (6) oder Kombinationen derselben angeordnet sind, die mit dem Sicherheitsmodul (1) direkt oder über eine Manipulationsschaltung (9) elektrisch verbunden sind.
5. Arrangement according to claim 1, characterized in
that the security module ( 1 ) is surrounded by a further, opaque shell ( 3 ) and
that a meandering electrical conductor ( 4 ) or a light detector ( 5 ) together with light guide ( 51 ) or an X-ray detector ( 6 ) or combinations thereof are arranged in the transition region between this sheath ( 3 ) and the X-ray absorbing sheath ( 2 ) which are electrically connected to the security module ( 1 ) directly or via a manipulation circuit ( 9 ).
6. Anordnung nach Anspruch 1 und 5, dadurch gekenn­ zeichnet, daß die Hülle (3) von einem Röntgenstrahlen absorbierenden Gehäuse (7) umgebeben ist, das auf eine Platine (8) aufgesetzt ist, die mit dem Sicherheitsmodul (1) elektrisch verbunden ist. 6. Arrangement according to claim 1 and 5, characterized in that the sheath ( 3 ) is surrounded by an X-ray absorbing housing ( 7 ) which is placed on a circuit board ( 8 ) which is electrically connected to the security module ( 1 ) . 7. Anordnung nach Anspruch 5, dadurch gekennzeichnet, daß die Manipulationsschaltung (9) nur bei spannungslosem Zustand des Sicherheitsmoduls (1) mit demselben elektrisch verbunden ist.7. Arrangement according to claim 5, characterized in that the manipulation circuit ( 9 ) is electrically connected to the same only when the security module ( 1 ) is de-energized.

DE1998116572 1998-04-07 1998-04-07 Security module to prevent manipulation of data Withdrawn DE19816572A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998116572 DE19816572A1 (en) 1998-04-07 1998-04-07 Security module to prevent manipulation of data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998116572 DE19816572A1 (en) 1998-04-07 1998-04-07 Security module to prevent manipulation of data

Publications (1)

Publication Number Publication Date
DE19816572A1 true DE19816572A1 (en) 1999-10-14

Family

ID=7864525

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998116572 Withdrawn DE19816572A1 (en) 1998-04-07 1998-04-07 Security module to prevent manipulation of data

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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035513A2 (en) 1999-03-12 2000-09-13 Francotyp-Postalia Aktiengesellschaft & Co. Security module with status signalization
EP1061479A2 (en) 1999-06-15 2000-12-20 Francotyp-Postalia AG & Co. Arrangement and method for generating a security imprint
EP1063619A1 (en) 1999-06-15 2000-12-27 Francotyp-Postalia Aktiengesellschaft & Co. Security module and method for protecting the postal register against manipulation
EP1069492A2 (en) 1999-06-15 2001-01-17 Francotyp-Postalia Aktiengesellschaft & Co. Security module and method for monitoring de safety of a system
EP1136942A1 (en) * 2000-03-22 2001-09-26 Infineon Technologies AG Circuit assembly for protection of a circuit against analysis and manipulation
EP1233372A1 (en) * 2001-01-18 2002-08-21 Philips Corporate Intellectual Property GmbH Circuit and method for protecting a chip arrangement against manipulation and/or against abuse
WO2004044833A1 (en) * 2002-11-11 2004-05-27 Giesecke & Devrient Gmbh Chip module for a chip card
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US6895509B1 (en) 2000-09-21 2005-05-17 Pitney Bowes Inc. Tamper detection system for securing data
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US8201267B2 (en) 2008-10-24 2012-06-12 Pitney Bowes Inc. Cryptographic device having active clearing of memory regardless of state of external power
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Cited By (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035513A2 (en) 1999-03-12 2000-09-13 Francotyp-Postalia Aktiengesellschaft & Co. Security module with status signalization
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