Boots – shoes – and leggings
Patent
1986-09-02
1989-03-21
Lall, Parshotam S.
Boots, shoes, and leggings
235375, 364519, G06F 1520
Patent
active
048139122
ABSTRACT:
A system is disclosed for securing a device from invasive and noninvasive tampering, one such device being a printer assembly for use in a value printing system, such as a postal mailing system. The system is comprised of a Decryption Microcomputer operable for decrypting the input data to be printed in accordance with a valid cipher key, the encrypted data and key being provided by another device, such as a postal meter. The cipher key is stored within a Tamper Latch readably coupled to the Microcomputer for providing the key to the Microcomputer. In addition, the Tamper Latch has a wire of small cross-sectional area connected thereto such that the presence of the wire is operable for defining a portion of the cipher key. To provide further security from tampering the Microcomputer, Latch and wire are embedded within a potting material. An attempt to remove the potting material in order to gain access to the components embedded therein will cause a brakage of the wire, thereby invalidating the cipher key and rendering the Microcomputer inoperable for decrypting the data to be printed.
REFERENCES:
patent: 4097923 (1978-06-01), Eckert, Jr. et al.
patent: 4168533 (1979-09-01), Schwartz
patent: 4253158 (1981-02-01), McFiggans
patent: 4360905 (1982-11-01), Hackett
patent: 4422148 (1983-12-01), Soderberg et al.
patent: 4458109 (1984-07-01), Mueller-Scholer
patent: 4481604 (1984-11-01), Gilham et al.
patent: 4494114 (1985-12-01), Kaish
patent: 4506253 (1985-03-01), Mande et al.
patent: 4649266 (1987-03-01), Eckert
Chickneas Arthur A.
Talmadge Paul C.
Cosimano Edward R.
Lall Parshotam S.
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
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