Implement a Cipher From Mathematical Specification and Analyse a Real Vulnerability

8 weeks · 0 milestones

Implement a symmetric cipher (AES, ChaCha20, or equivalent) from its published mathematical specification — no library calls for the core cipher operations, only for testing correctness against known test vectors. Additionally, write an analysis of one published cryptographic vulnerability (a CVE with a known mathematical weakness such as padding oracle, timing side-channel, or nonce reuse) explaining the exact mathematical flaw exploited and how the implementation deviated from the secure specification. Proof: the implementation and vulnerability analysis reviewed by a security practitioner or CS lecturer with cryptography background who presents a different cipher specification you haven't seen and asks you to implement the key schedule or identify the flaw in a published attack — you must engage with the new material in real time, not describe your prepared examples.

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