Tiny, copyright-free, PII-free collision PoCs

# MD5

## FastColl

- GIF images md5-1.gif / md5-2.gif

## UniColl

- GZip archives md5-1.gz / md5-2.gz

- JPG images

  - via UniColl md5-1.jpg / md5-2.jpg
  - via modified FastColl md5-1fc.jpg / md5-2fc.jpg

- PDF documents md5-1.pdf / md5-2.pdf

- PNG images

  - generic header, not 100% compatible
    - appended data md5-1.png / md5-2.png
    - appended data w/ correct CRCs md5-crc1.png / md5-crc2.png
    - synchronized comments md5-sync1.png / md5-sync2.png
  - specific header w/ common dimensions/colorspace md5-s1.png / md5-s2.png

- MP4

  - generic header, 32b length (LTV) md5-1.mp4 / md5-2.mp4
  - generic header, 64b length (TLV) md5-l1.mp4 / md5-l2.mp4
  - specific header md5-s1.mp4 / md5-s2.mp4

- ZIP md5-1.zip / md5-2.zip

- LZ4 archives md5-1.lz4 / md5-2.lz4

- Zstandard archives md5-1.zstd / md5-2.zstd

- LZ4/Zstandard archives md5-c6a611ce.zstd / md5-c6a611ce.lz4

- Wasm executables md5-1.wasm / md5-2.wasm

## HashClash

- PE executables md5-1.exe / md5-2.exe

ZIP-based formats:

- Office Open XML
  - DOCX md5-1.docx / md5-2.docx
  - PPTX md5-1.pptx / md5-2.pptx
  - XLSX md5-1.xls / md5-2.xls
- Open Container Format
  - EPUB md5-1.epub / md5-2.epub
- Open Packaging Conventions
  - XPS md5-1.xps / md5-2.xps
  - 3MF md5-1.3mf / md5-2.3mf

# SHA1 (Shattered)

- JPG in PDF sha1-1.pdf / sha1-2.pdf