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首頁> 外文期刊>Journal of supercomputing >RCB: leakage-resilient authenticated encryption via re-keying
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RCB: leakage-resilient authenticated encryption via re-keying

機譯：RCB：通過重新密鑰進行防泄漏的身份驗證加密

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The security of modern cryptosystems relies on the secrecy of the keys. Against the expectation that the keys used in cryptographic algorithms are perfectly secure, the keys can get compromised when implemented on physical devices. Because of the computational leakages from the execution of cryptographic algorithms, a variety of side-channel measurements can lead to full breaks of the targeted physical devices. Leakage-resilient cryptography aims at defining leakages in a generic model and designing provably secure primitives to capture side-channel attacks. For this purpose, several re-keying schemes are proposed to prevent encryption scheme from using the same key many times. In this paper, we propose a leakage-resilient authenticated encryption scheme, called Re-keying Code Book (RCB), that is secure against the side-channel attacks by combining with existing re-keying schemes. Our approach is to find efficient composition by combining two independent primitives, authenticated encryption, and re-keying schemes, rather than designing new algorithms. We also give the precise definitions of privacy and authenticity for authenticated encryption in a leakage-resilient model, and then, we provide the security proofs for RCB in a leakage-resilient model.
機譯：現(xiàn)代密碼系統(tǒng)的安全性取決于密鑰的保密性。期望密碼算法中使用的密鑰是完全安全的，但在物理設(shè)備上實現(xiàn)這些密鑰時，密鑰可能會遭到破壞。由于執(zhí)行密碼算法而導(dǎo)致的計算泄漏，各種邊信道測量都可能導(dǎo)致目標物理設(shè)備完全中斷。防泄漏加密技術(shù)旨在定義通用模型中的泄漏并設(shè)計可證明的安全原語以捕獲邊信道攻擊。為此，提出了幾種重新密鑰方案以防止加密方案多次使用同一密鑰。在本文中，我們提出了一種防泄漏的，經(jīng)過身份驗證的加密方案，稱為“重新密鑰碼本”（RCB），該方案可通過與現(xiàn)有的重新密鑰方案結(jié)合使用來抵御旁信道攻擊。我們的方法是通過組合兩個獨立的原語，經(jīng)過身份驗證的加密和重新密鑰方案來找到有效的組合，而不是設(shè)計新的算法。我們還為防泄漏模型提供了經(jīng)過身份驗證的加密的隱私和真實性的精確定義，然后，為防泄漏模型中的RCB提供了安全證明。

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