This book describes the fundamentals of cryptographic primitives based on quasi-cyclic low-density parity-check (QC-LDPC) codes, with a special focus on the use of these codes in public-key cryptosystems derived from the Mc Eliece and Niederreiter schemes. In the first part of the book, the main characteristics of QC-LDPC codes are reviewed, and several techniques for their design are presented, while tools for assessing the error correction performance of these codes are also described. Some families of QC-LDPC codes that are best suited for use in cryptography are also presented. The second part of the book focuses on the Mc Eliece and Niederreiter cryptosystems, both in their original forms and in some subsequent variants. The applicability of QC-LDPC codes in these frameworks is investigated by means of theoretical analyses and numerical tools, in order to assess their benefits and drawbacks in terms of system efficiency and security. Several examples of QC-LDPC code-based public key cryptosystems are presented, and their advantages over classical solutions are highlighted. The possibility of also using QC-LDPC codes in symmetric encryption schemes and digital signature algorithms is also briefly examined.
表中的内容
Introduction.- Low-Density Parity-Check Codes.- Quasi-Cyclic Codes.- Quasi-Cyclic Low-Density Parity-Check Codes.- The Mc Eliece and Niederreiter Cryptosystems.- QC-LDPC Code-based Cryptosystems.
关于作者
Marco Baldi is Assistant Professor in Telecommunications at Università Politecnica delle Marche, Ancona, Italy.
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