free

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