Term rewriting and all that
On the (Im)possibility of Obfuscating Programs
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Robust Object Watermarking: Application to Code
IH '99 Proceedings of the Third International Workshop on Information Hiding
Increasing Robustness of LSB Audio Steganography Using a Novel Embedding Method
ITCC '04 Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'04) Volume 2 - Volume 2
Dynamic path-based software watermarking
Proceedings of the ACM SIGPLAN 2004 conference on Programming language design and implementation
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The amount of publicly available source code on the Internet makes it attractive as a potential message carrier for steganographic applications. Unfortunately, it is often overlooked since embedding information in an undetectable way is challenging. We investigate term rewriting as a method for embedding messages into programs via transformations on source code. We elaborate on several possible transformation strategies and discuss how they might be applied in a steganographic setting. We continue with a discussion on (a) the implications and trade-offs of preserving semantic properties, (b) the relationship between messages and transformations, and (c) how to incorporate existing natural language processing techniques. The goal of this work is to elicit constructive feedback and present ideas that stimulate future work.