Author

Dibyendu Roy

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Open access 2026

Differential Fault Attack on Dasta and Fasta

We present a Differential Fault Attack (DFA) targeting Dasta and Fasta, two stream cipher constructions proposed for efficient Fully Homomorphic Encryption (FHE) schemes. Both designs are inspired by Rasta but modified with an affine layer. Dasta replaces the per-round pseudorandom matrices with a single fixed public m...

R. Radheshwar, Dibyendu Roy, Notan Roy et al. · IEEE Access · 0 citations