Welcome to the resource topic for 2024/1328
Title:
A Note on ARADI and LLAMA
Authors: Roberto Avanzi, Orr Dunkelman, Shibam Ghosh
Abstract:Recently, the NSA has proposed a block cipher called ARADI and a mode of operation called LLAMA for memory encryption applications.
In this note, we comment on this proposal, on its suitability for the intended application, and describe an attack on LLAMA that breaks confidentiality of ciphertext and allows a straightforward forgery attack breaking integrity of ciphertext (INT-CTXT) using a related-IV attack.
Both attacks have negligible complexity.
ePrint: https://eprint.iacr.org/2024/1328
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