Simple power analysis attack on the QC-LDPC McEliece cryptosystem
Abstract
We consider a naive implementation of the QC-LDPC McEliece
cryptosystem. We demonstrate that this implementation leaks informa-
tion about positions of ones in the secret matrix $Q$. We argue that this
leakage allows an attacker to completely recover the matrix $Q$.
cryptosystem. We demonstrate that this implementation leaks informa-
tion about positions of ones in the secret matrix $Q$. We argue that this
leakage allows an attacker to completely recover the matrix $Q$.
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PDFDOI: https://doi.org/10.2478/tatra.v67i0.475