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A Key Recovery Attack on MDPC with CCA Security Using Decoding Errors

TheIACR via YouTube

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Overview

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This course aims to teach learners about a key recovery attack on QC-MDPC with CCA security using decoding errors. The course covers topics such as QC-MDPC codes, the QC-MDPC PKC scheme, iterative decoding strategies, key-related properties like distance spectrum (DS), and the attack on CCA-Secure QC-MDPC. The teaching method involves a talk presentation format. This course is intended for individuals interested in cryptography, security, and error-correcting codes.

Syllabus

Intro
Outline
Motivation
QC-MDPC Codes
The QC-MDPC PKC Scheme
CCA-Secure Version
Iterative Decoding: Gallager's Bit-Flipping Strategy
Basic Scenario
Key-Related Property: Distance Spectrum (DS)
Main Observation
On Plain QC-MDPC (CPA)
Attack on CCA-Secure QC-MDPC
An Explanation for the Distinguishing Procedure
Results Obtaining DS in the CPA Case
Final Remarks

Taught by

TheIACR

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