Abstract
White-box cryptography was originally introduced in the setting of digital rights management with the goal of preventing a user from illegally re-distributing their software decryption program. In recent years, mobile payment has become a popular new application for white-box cryptography. Here, white-box cryptography is used to increase the robustness against external adversaries (i.e., not the user) who aim to misuse/attack the cryptographic functionalities of the payment application. A necessary requirement for secure white-box cryptography is that an adversary cannot extract the embedded secret key from the implementation. However, a white-box implementation needs to fulfill further security properties in order to provide useful protection of an application. In this paper we focus on the popular property incompressibility that is a mitigation technique against code-lifting attacks. We provide an incompressible white-box encryption scheme based on the standard-assumption of one-way permutations whereas previous work used either public-key type assumptions or non-standard symmetric-type assumptions.
Original language | English |
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Title of host publication | Topics in Cryptology – CT-RSA 2019 - The Cryptographers’ Track at the RSA Conference 2019, Proceedings |
Editors | Mitsuru Matsui |
Place of Publication | Cham |
Publisher | Springer |
Pages | 189-209 |
Number of pages | 21 |
ISBN (Electronic) | 978-3-030-12612-4 |
ISBN (Print) | 978-3-030-12611-7 |
DOIs | |
Publication status | Published - 3 Feb 2019 |
Event | Cryptographers Track at the RSA Conference 2019, CT-RSA 2019 - San Francisco, United States Duration: 4 Mar 2019 → 8 Mar 2019 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 11405 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | Cryptographers Track at the RSA Conference 2019, CT-RSA 2019 |
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Country/Territory | United States |
City | San Francisco |
Period | 4/03/19 → 8/03/19 |
Keywords
- Incompressibility
- One-way permutations
- White-box cryptography
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On the Foundations of White-Box Cryptography
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