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I'm from Germany, in a polyglot family.
I love to explore file formats and dissect them.
I craft tiny files by hand to explore the formats, document features or bugs (for example, the first SHA1 collision PDFs).
I write open tools to help people to manipulate the formats and understand the risks.

Current sponsors 1

@hakusaro
Past sponsors 3
@chootka
@jeffbarr
@tsahara

Meet the team

Featured work

  1. corkami/pics

    File formats dissections and more...

    Assembly 10,554
  2. corkami/collisions

    Hash collisions and exploitations

    Python 3,089
  3. corkami/pocs

    Proof of Concepts (PE, PDF...)

    Assembly 1,477
  4. corkami/mitra

    A generator of weird files (binary polyglots, near polyglots, polymocks...)

    Python 1,137

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