A Note on the Practical Value of Single Hash Collisions for Special File Formats.
Max Gebhardt, Georg Illies, Werner Schindler · 2006
Abstract. We investigate Merkle-Damgard hash functions and different file formats. Our goal is to construct many meaningful hash collisions with given semantic contents from one single abstract collision. We show that this is not only possible for PostScript ([DL1], [DL2]) but also for PDF, TIFF and MS Word 97. Our results suggest that this property might be typical for ’higher ’ file formats. 1