Tamper resistant methods and apparatus

Details Tamper resistant methods and apparatus Tamper resistant methods and apparatus

1997-09-05

2001-01-23

Beausoliel, Jr., Robert W. (Department: 2785)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

C713S194000

Reexamination Certificate

active

06178509

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the field of system security. More specifically, the present invention relates to the tamper resistant methods and apparatus.
2. Background Information
Many applications, e.g. financial transactions, unattended authorizations and content management, require the basic integrity of their operations to be assumed, or at least verified. While a number of security approaches such as encryption and decryption techniques are known in the art, unfortunately, the security approaches can be readily compromised, because these applications and the security approaches are implemented on systems with an open and accessible architecture, that renders both hardware and software including the security approaches observable and modifiable by a malevolent user or a malicious program.
Thus, a system based on open and accessible architecture is a fundamentally insecure platform, notwithstanding the employment of security measures. However, openness and accessibility offer a number of advantages, contributing to these systems' successes. Therefore, what is required are techniques that will render software execution virtually unobservable or unmodifiable on these fundamentally insecure platforms, notwithstanding their openness and accessibility.
SUMMARY OF THE INVENTION
In one apparatus, a number of obfuscated programming instructions are equipped to perform integrity verification on a number of other plain text programming instructions.
In another apparatus, a number of obfuscated programming instructions are equipped to self-verify an invocation of the obfuscated programming instructions is not originated from an intruder.


REFERENCES:
patent: 4262329 (1981-04-01), Bright et al.
patent: 4634807 (1987-01-01), Chorley
patent: 4723284 (1988-02-01), Munck et al.
patent: 4786790 (1988-11-01), Kruse et al.
patent: 4847902 (1989-07-01), Hampson
patent: 4866665 (1989-09-01), Haswell-Smith
patent: 4926480 (1990-05-01), Chaum
patent: 4947430 (1990-08-01), Chaum
patent: 5081675 (1992-01-01), Kittirutsunetorn
patent: 5136643 (1992-08-01), Fischer
patent: 5224160 (1993-06-01), Paulini et al.
patent: 5265164 (1993-11-01), Matyas et al.
patent: 5267312 (1993-11-01), Thompson
patent: 5343527 (1994-08-01), Moore
patent: 5347579 (1994-09-01), Blandford
patent: 5421006 (1995-05-01), Jablon et al.
patent: 5469507 (1995-11-01), Canetti et al.
patent: 5483649 (1996-01-01), Kuznetsov
patent: 5535276 (1996-07-01), Ganesan
patent: 5559960 (1996-09-01), Lettvin
patent: 5638446 (1997-06-01), Rubin
patent: 5652793 (1997-07-01), Priem et al.
patent: 5668874 (1997-09-01), Kristol
patent: 5684875 (1997-11-01), Ellenberger
patent: 5768382 (1998-06-01), Schneier
patent: 5822431 (1998-10-01), Sprunk
patent: 5966306 (1999-10-01), Nodine
patent: 6006328 (1999-12-01), Drake
patent: 6049609 (2000-04-01), Maliszewski
Yisrael Radai, “Integrity Checking for Anti-Viral Purposes Theory and Practice”, Dec. 1994.
PCT International Search Report for International Application No. PCT/US98/14913, dated Nov. 16, 1998.

Affiliated with

Also associated with

Rating

Tamper resistant methods and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tamper resistant methods and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper resistant methods and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2509046