BART PRENEEL PHD THESIS

It makes sense to define white-box cryptography accordingly since it reflects more reality. Theory White-box cryptography is often linked with code obfuscation, since both aim to protect software implementations. Attacking an obfuscated cipher by injecting faults. Research Academic research in white-box cryptography can be categorized into three activities. On the Im possibility of Obfuscating Programs. The main difference between code obfuscation and white-box cryptography is that the security of the latter needs to be validated with respect to security notions. Obfuscation for Cryptographic Purposes.

White-box implementations and cryptanalysis results A selection of the state of the art: ITCC 1 , pages Resources Slides March — slides PhD defense. Jan 13, version: Positive Results and Techniques for Obfuscation. Ran Canetti and Mayank Varia. Theory White-box cryptography is often linked with code obfuscation, since both aim to protect software implementations.

ITCC 1pages Shafi Goldwasser and Yael Tauman Kalai.

bart preneel phd thesis

Wyseur, and Bart Preneel: Similar theoretic approaches have been conceived for white-box cryptography in [Sax09]. On the Impossibility of Obfuscation with Auxiliary Input.

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Indeed, it does not suffice to only protect an application against extraction of embedded secret keys. Obfuscation for Cryptographic Purposes.

Bart Preneel

Attacking an obfuscated cipher by injecting faults. Resources Slides March — slides PhD defense.

bart preneel phd thesis

A security notion is a formal description of the security of a cryptographic scheme. For example, a scheme is defined CPA-secure if an attacker cannot compute the plaintext from a given ciphertext, or KR-secure when the secret key cannot be recovered.

bart preneel phd thesis

Theoretic research on code obfuscation gained momentum with the seminal paper of Barak et al. Positive Results and Techniques for Obfuscation.

White-box cryptography

Research Academic research in white-box peeneel can be categorized into three activities. Ran Canetti and Mayank Varia. For example, to create the equivalent of a smart-card-based AES encryption function in software, it does not suffice that the white-box implementation resists extraction of its embedded key, but it must also be hard to invert. Chand Gupta, and G.

Bart Preneel | SBA Research

Nevertheless, this result does not exclude the existence of secure code obfuscators: It makes sense to define white-box cryptography accordingly since it reflects more reality. The thsis difference between code obfuscation and white-box cryptography is that the security of the latter needs to be validated with respect to security notions. On Obfuscating Point Functions.

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On the Im possibility of Obfuscating Programs. Both have received similar scepticism on its feasibility and lack of theoretic foundations.

Wee [Wee05] presented a provably secure obfuscator for a point function, which can be exploited in practice to construct authentication functionalities. Theory White-box cryptography is often linked with code obfuscation, since both aim to protect software implementations. White-box implementations and cryptanalysis results A selection of the state of the art: Jan 13, version:

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