Security device for the secure storage of sensitive data
First Claim
1. A device for the secure storage of sensitive data, said device comprising:
- a housing;
a memory contained within said housing for storing sensitive data therein;
low temperature sensing means contained within said housing and being responsive to a decrease in temperature in said housing below a preselected reference temperature for developing a first signal; and
means contained within said housing being responsive to said first signal for clearing said memory of any sensitive data stored therein.
1 Assignment
0 Petitions
Accused Products
Abstract
A device is disclosed for securely housing and protecting microelectronic circuitry in order to prevent external access to sensitive data stored therein. In a preferred embodiment of the invention, the device includes a ceramic housing which encases electronic circuitry. The ceramic housing is comprised of a plurality of individual parts selectively connected together, with each of the parts being comprised of a ceramic substrate and a plurality of ceramic layers disposed thereon. The electronic circuitry includes a memory for storing sensitive data therein and a tamper detection circuit. The tamper detection circuit includes a conductive path selectively provided through the plurality of ceramic layers of each of the plurality of individual parts and is responsive to any attempt to penetrate the ceramic housing which damages the conductive path for clearing the memory of any sensitive data stored therein. The tamper detection circuit further includes a low temperature sensing circuit which is responsive to a decrease in temperature in the ceramic housing below a preselected reference temperature for causing the tamper detection circuit to also clear the memory of any sensitive data stored therein.
267 Citations
18 Claims
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1. A device for the secure storage of sensitive data, said device comprising:
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a housing; a memory contained within said housing for storing sensitive data therein; low temperature sensing means contained within said housing and being responsive to a decrease in temperature in said housing below a preselected reference temperature for developing a first signal; and means contained within said housing being responsive to said first signal for clearing said memory of any sensitive data stored therein. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for the secure storage of sensitive data, said device comprising:
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a housing comprised of a plurality of individual parts selectively connected together, each of said parts being comprised of a substrate and a plurality of layers disposed thereon; and electronic circuitry contained within said housing, said electronic circuitry including a memory for storing sensitive data therein and tamper detection circuit, said tamper detection circuit including a first conductive path selectively provided through said plurality of layers of each of said plurality of individual parts, said tamper detection circuit being responsive to any attempt to penetrate said housing which damages said first conductive path for clearing said memory of any sensitive data stored therein; said tamper detection circuit further including;
sensing means coupled to said first conductive path and being responsive to damage to said first conductive path for generating a first signal;
means responsive to said first signal from said sensing means for clearing said memory of any sensitive data stored therein; and
low temperature sensing means responsive to a decrease in temperature within said housing below a preselected reference temperature for developing a second signal, said clearing means being responsive to said first signal or said second signal for applying a third signal to said memory to clear said memory of any sensitive data stored therein. - View Dependent Claims (8, 9, 10)
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11. A device for the secure storage of sensitive data, said device comprising:
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a housing comprised of a plurality of individual parts selectively connected together, each of said parts being comprised of a substrate and a plurality of layers disposed thereon; and electronic circuitry contained within said housing, said electronic circuitry including a memory for storing sensitive data therein and a tamper detection circuit, said tamper detection circuit including a first conductive path selectively provided through said plurality of layers of eachof said plurality of individual parts, said tamper detection circuit being responsive to any attempt to penetrate said housing which damages said first conductive path for clearing said memory of any sensitive data stored therein;
said tamper detection circuit further including;
a second conductive path selectively provided through said plurality of layers of each of said plurality of individual parts, said tamper detection circuit being responsive to any attempt to penetrate said housing which damages either of said first and second conductive paths for clearing said memory of any sensitive data stored therein;
a first sensing circuit coupled to said first conductive path and being responsive to damage to said first conductive path for generating a first signal;
a second sensing circuit coupled to said second conductive path and being responsive to damage to said second conductive path for generating a second signal;
clearing means responsive to said first signal or said second signal for applying a third signal to said memory to clear any sensitive data stored therein; and
a third sensing circuit responsive to a decrease in temperature in said housing below a preselected reference temperature for developing a fourth signal, said clearing means being responsive to any of said first, second and fourth signals for applying said third signal to said memory to clear said memory of any sensitive data stored therein. - View Dependent Claims (12, 13, 14)
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15. A device for the secure storage of sensitive data, said device comprising:
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a housing comprised of a plurality of individual parts selectively connected together into a preselected configuration, each of said parts being comprised of a substrate and a plurality of layers disposed thereon; a memory contained within said housing for storing sensitive data therein; a first conductive path selectively provided through said plurality of layers of each of said plurality of individual parts; sensing means contained within said housing and being coupled to said first conductive path, said sensing means being responsive to any attempt to penetrate said housing which damages said first conductive path for generating a first signal;
means contained within said housing being responsive to said first signal for clearing said memory of any sensitive data stored therein; and
low temperature sensing means contained within said housing and being responsive to a decrease in temperature in said housing below a preselected reference temperature for developing a second signal, said clearing means being responsive to said first signal or said second signal for applying a third signal to said memory to clear said memory of any sensitive data stored therein.
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16. A device for the secure storage of sensitive data, said device comprising:
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a housing comprised of a plurality of individual parts selectively connected together into a preselected configuration, each of said parts being comprised of a substrate and a plurality of layers disposed thereon; a memory contained within said housing for storing sensitive data therein; a first conductive path selectively provided through said plurality of layers of each of said plurality of individual parts; sensing means contained within said housing and being coupled to said first conductive path, said sensing means being responsive to any attempt to penetrate said housing which damages said first conductive path for generating a first signal;
means contained within said housing being responsive to said first signal for clearing said memory of any sensitive data stored therein; anda second conductive path selectively provided through said plurality of layers of each of said plurality of individual parts, said sensing means further coupled to said second conductive path and being responsive to any attempt to penetrate said housing which damages said second conductive path for generating a second signal, said clearing means being responsive to said first signal or said second signal for clearing said memory of any sensitive data stored therein. - View Dependent Claims (17, 18)
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Specification