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Title: | 未知替換盒之旁通道分析 Side-Channel Analysis of Unknown S-Boxes |
Authors: | Gi-Siu Tong 童御修 |
Advisor: | 鄭振牟 |
Keyword: | 旁通道攻擊,代數旁通道分析,未知替換盒,Serpent 加密演算法, Side-Channel Attacks,Algebraic Side-Channel Analysis,Unknown S-Box,Serpent, |
Publication Year : | 2016 |
Degree: | 碩士 |
Abstract: | 旁通道分析對密碼裝置的實作是一個強大的威脅,而差分能量分析是旁通道分析中的一個以高效率而聞名的分支。然而,當差分能量分析被應用在演算法中有未知替換盒的情況時,它會因為需要列舉過多的替換盒可能性而無法達成。本文使用代數旁通道分析來處理未知替換盒的問題。結果顯示,若存在一個模板能提供旁通道資訊,則代數旁通道分析可成功取得Serpent演算法的未知替換盒及回合密鑰。 Side-Channel Analysis (SCA) is a powerful threat against the implementation of cryptographic devices. And Differential Power Analysis (DPA) is a popular type of SCA because of its efficiency. However, when applying DPA to an algorithm with unknown S-Box, DPA could not work well due to the large enumerating space of S-Box. In this thesis, we use Algebraic Side-Channel Analysis (ASCA) to deal with the unknown S-Box problem. The result shows that the unknown S-Boxes and secret round keys of Serpent can be retrieved if a template which provides the side-channel information is given. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/3785 |
DOI: | 10.6342/NTU201602059 |
Fulltext Rights: | 同意授權(全球公開) |
Appears in Collections: | 電機工程學系 |
Files in This Item:
File | Size | Format | |
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ntu-105-1.pdf | 949.18 kB | Adobe PDF | View/Open |
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