Securing accessible systems using cross-linking

Patent

Securing accessible systems using cross-linking

- 28 Mar 2013

11

TL;DR: In this article, the authors present a system and techniques for securing accessible computer-executable program code and systems, where one or more base functions may be generated and blended with existing program code, such that it may be difficult or impossible for a potential attacker to distinguish the base functions from the existing code.

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Citations

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TL;DR: In this article, the authors present an apparatus and method for enhancing resilience to attacks on reset of the apparatus, which consists of at least one storage element, and update circuitry that is configured to receive obscuring data, and which is responsive to a reset event to store in each of the at least storage element a data value that is dependent on the current value of the obscuring value.

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TL;DR: In this paper, the authors describe obfuscation, tamper-resistance, and watermarking techniques for protecting a computer program from unauthorized analysis and modification. But they do not discuss how to detect tampering.

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Harold Joseph Johnson, +2 more

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TL;DR: In this article, a method for rendering software resistant to reverse engineering was proposed, which replaces at least one first constant (mathematical expression, etc.) in a computational expression with a second mixed mathematical and bitwise-Boolean expression, the first constant being simpler than the second expression and the second one being based on the value or the variables found in the first expression.

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Patent

Obfuscating execution traces of computer program code

Johan Eker, +2 more

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TL;DR: In this article, a tamper-protected computer program code generation method is described. But the method is not suitable for the generation of tamper protected programs. But it can be used to generate code that is adapted to cause a data processing system to perform a plurality of computational tasks in a first order of execution.

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System and method for obscuring bit-wise and two's complement integer computations in software

Arun Narayanan Kandanchatha, +1 more

- 24 Jan 2005

TL;DR: In this paper, the authors describe a system for hiding mathematical and logical operations in software by replacing them with logically equivalent expressions. But they do not discuss how to hide the true nature of the original operations.

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Patent

Software code protection by obscuring its data-driven form

Harold J. Johnson, +2 more

- 18 Aug 2000

TL;DR: In this paper, a method and system for making computer software resistant to tampering and reverse-engineering is presented, where the control-flow of the software is converted into data-driven form, and increasing the complexity of the control flow by orders of magnitude.

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