C++: Experimental query for implementation of a cryptographic primitive #14972
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…expansion (I've seen this more than once).
cpp/ql/src/experimental/Security/CWE/CWE-1240/CustomCryptographicPrimitive.ql
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cpp/ql/src/experimental/Security/CWE/CWE-1240/CustomCryptographicPrimitive.ql
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cpp/ql/src/experimental/Security/CWE/CWE-1240/CustomCryptographicPrimitive.ql
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cpp/ql/src/experimental/Security/CWE/CWE-1240/CustomCryptographicPrimitive.ql
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cpp/ql/src/experimental/Security/CWE/CWE-1240/CustomCryptographicPrimitive.ql
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Adds an experimental query for detecting custom implementations of a cryptographic primitive (i.e. covering https://mas.owasp.org/MASTG/General/0x04g-Testing-Cryptography/#custom-implementations-of-cryptography
and parts of https://cwe.mitre.org/data/definitions/1240.html).
Currently
@precision medium, because it flags established library encryption implementations just as happily as custom implementations and entirely custom algorithms. Though probably none of these should be in a database unless it's a database for a cryptography library.Developed during a hackathon. Needs more work to be production quality - in particular it currently lacks qhelp / examples, could do with a few more unit tests, and perhaps some more testing in the wild and refinement.