A New Leakage-Resilient IBE Scheme in the Relative Leakage Model
نویسندگان
چکیده
We propose the first leakage-resilient Identity-Based Encryption (IBE) scheme with full domain hash structure. Our scheme is leakageresilient in the relative leakage model and the random oracle model under the decisional bilinear Diffie-Hellman (DBDH) assumption.
منابع مشابه
A new security proof for FMNV continuous non-malleable encoding scheme
A non-malleable code is a variant of an encoding scheme which is resilient to tampering attacks. The main idea behind non-malleable coding is that the adversary should not be able to obtain any valuable information about the message. Non-malleable codes are used in tamper-resilient cryptography and protecting memories against tampering attacks. Many different types of non-malleability have alre...
متن کاملLeakage Resilient IBE and IPE under the DLIN Assumption
In this paper, we show identity-based encryption (IBE) and inner product encryption (IPE) schemes which achieve the maximum-possible leakage rate 1 − o(1). These schemes are secure under the decision linear (DLIN) assumption in the standard model. Specifically, even if 1− o(1) fraction of each private key is arbitrarily leaked, the IBE scheme is fully secure and the IPE scheme is selectively se...
متن کاملLeakage Resilient IBE and IPE schemes
We construct identity-based encryption (IBE) and inner product encryption (IPE) schemes under the decision linear (DLIN) or symmetric external Diffie-Hellman (SXDH) assumptions. Their private user keys are leakage-resilient in several scenarios. In particular, • In the bounded memory leakage model (Akavia et al., TCC ’09), our basic schemes reach the maximum-possible leakage rate 1− o(1). • In ...
متن کاملA Leakage-Resilient Spatial Encryption Scheme
A scheme is said leakage resilient if it remains secure even when an adversary is able to learn partial information about some secret values used throughout the lifetime of the system. This recent area appeared because of the need to develop schemes that resist to sidechannel attacks, such as power-consumption, fault or time analyses. Today, there exist a few encryption schemes that implement t...
متن کاملIdentity-Based Encryption Resilient to Continual Auxiliary Leakage
We devise the first identity-based encryption (IBE) that remains secure even when the adversary is equipped with auxiliary input (STOC ’09) – any computationally uninvertible function of the master secret key and the identity-based secret key. In particular, this is more general than the tolerance of Chow et al.’s IBE schemes (CCS ’10) and Lewko et al.’s IBE schemes (TCC ’11), in which the leak...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011