Titlebook: Code-Based Cryptography; 7th International Wo Marco Baldi,Edoardo Persichetti,Paolo Santini Conference proceedings 2019 Springer Nature Swi

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Introducing Arithmetic Failures to Accelerate QC-MDPC Code-Based Cryptography,o 1.4 on the decryption time. Comparing with variant 2 of the BIKE suite, which also implements the Niederreiter Cryptosystem using QC-MDPC codes, our final version of QcBits performs the uniform decryption 2.7 times faster.

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Practical Algebraic Attack on DAGS,oved by adding variables to the polynomial system. This enables us to recover the private keys in a few seconds. Furthermore, our experimentations also show that the maximum degree reached during the computation of the Gr?bner basis is an important parameter that explains the efficiency of the attac

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Quantum Resistant Public Key Encryption Scheme HermitianRLCE,ion scheme. Wang (2017) analyzed an instantiation of RLCE scheme using Generalized Reed-Solomon codes. In this paper, we introduce and analyze Hermitian code based RLCE schemes HermitianRLCE. Based on our security analysis, we provide HermitianRLCE parameters at the 128, 192, and 256 bits security l

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Graduated

Introducing Arithmetic Failures to Accelerate QC-MDPC Code-Based Cryptography,procedures. We present constant time algorithms with a configurable failure rate for multiplication and inversion over binary polynomials, the two most expensive subroutines used in QC-MDPC implementations. Using a failure rate negligible compared to the security level (.), our multiplication is 2 t

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DAGS: Reloaded Revisiting Dyadic Key Encapsulation,call for the key exchange/encryption functionalities. In particular, we modify the algorithms for key generation, encapsulation and decapsulation to fit an alternative KEM framework, and we present a new set of parameters that use binary codes. We discuss advantages and disadvantages for each of the

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exophthalmos

,Weak Keys in the Faure–Loidreau Cryptosystem,ith a computational effort that is substantially lower than the security level (≈2. operations for 80-bit security). The proposed key-recovery attack is based on ideas of generalized minimum distance (GMD) decoding for rank-metric codes.

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Analysis of Reaction and Timing Attacks Against Cryptosystems Based on Sparse Parity-Check Codes,(LDPC) codes and moderate-density parity-check (MDPC) codes. We show that the feasibility of these attacks is not strictly associated to the quasi-cyclic (QC) structure of the code but is related to the intrinsically probabilistic decoding of any sparse parity-check code. So, these attacks not only

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