BART PRENEEL PHD THESIS

On the Impossibility of Obfuscation with Auxiliary Input. Indeed, it does not suffice to only protect an application against extraction of embedded secret keys. Wee [Wee05] presented a provably secure obfuscator for a point function, which can be exploited in practice to construct authentication functionalities. Both have received similar scepticism on its feasibility and lack of theoretic foundations. Attacking an obfuscated cipher by injecting faults. Ran Canetti and Mayank Varia. Research Academic research in white-box cryptography can be categorized into three activities.

Resources Slides March — slides PhD defense. Shafi Goldwasser and Yael Tauman Kalai. Wee [Wee05] presented a provably secure obfuscator for a point function, which can be exploited in practice to construct authentication functionalities. Theoretic research on code obfuscation gained momentum with the seminal paper of Barak et al. Positive Results and Techniques for Obfuscation.

On the Impossibility of Obfuscation prsneel Auxiliary Input. Wee [Wee05] presented a provably secure obfuscator for a point function, which can be exploited in practice to construct authentication functionalities.

bart preneel phd thesis

It makes sense to define white-box cryptography accordingly since it reflects more reality. Wyseur, and Bart Preneel: Positive Results and Techniques for Obfuscation. For example, a scheme is defined CPA-secure if an attacker cannot compute the plaintext from a prenesl ciphertext, or KR-secure when the secret key cannot be recovered.

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Bart Preneel

Resources Slides March — slides PhD defense. Jan 13, version: Theoretic research on prfneel obfuscation gained momentum with the seminal paper of Barak et al. Attacking an obfuscated cipher by injecting faults. Ran Canetti and Mayank Varia.

bart preneel phd thesis

Similar theoretic approaches have been conceived for white-box cryptography in [Sax09]. ITCC 1pages Both have received similar scepticism on its feasibility and lack of theoretic foundations. On Obfuscating Point Functions.

Bart Preneel | SBA Research

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. Research Academic research in white-box cryptography can thrsis categorized into three activities. Chand Gupta, and G. Indeed, it does not suffice to only protect an application against extraction of embedded secret keys.

Shafi Goldwasser and Yael Tauman Kalai.

White-box cryptography

thesjs Nevertheless, this result does not exclude the existence of secure code obfuscators: 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.

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Obfuscation for Cryptographic Purposes.

White-box implementations and cryptanalysis results A selection of the state of the art: Ohd security notion is a formal description of the security of a cryptographic scheme. On the Im possibility of Obfuscating Programs. Theory White-box cryptography is often linked with code obfuscation, since both aim to protect software implementations.