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Can We Access a Database Both Locally and Privately?
private information retrieval locally decodable codes
2017/6/15
We consider the following strong variant of private information retrieval (PIR). There is a large database x that we want to make publicly available. To this end, we post an encoding X of x together w...
Locally Decodable and Updatable Non-Malleable Codes in the Bounded Retrieval Model
bounded retrieval model non-malleable codes locally decodable codes
2017/4/11
In a recent result, Dachman-Soled et al.(TCC '15) proposed a new notion called locally decodable and updatable non-malleable codes, which informally, provides the security guarantees of a non-malleabl...
Tight Upper and Lower Bounds for Leakage-Resilient, Locally Decodable and Updatable Non-Malleable Codes
non-malleable codes locally updatable and locally decodable codes tamper-resilient cryptography
2017/2/20
In a recent result, Dachman-Soled et al.~(TCC '15) proposed a new notion called locally decodable and updatable non-malleable codes, which informally, provides the security guarantees of a non-malleab...
Locally decodable codes (LDC) [1,5] are error correcting codes that allow decoding (any) individual symbol of the message, by reading only few symbols of the codeword. Consider an application such ...
Locally Decodable and Updatable Non-Malleable Codes and Their Applications
non-malleable codes tamper-resilience RAM computation
2016/1/7
Non-malleable codes, introduced as a relaxation of error-correcting codes by Dziembowski,
Pietrzak and Wichs (ICS ’10), provide the security guarantee that the message
contained in a tampered codewo...
We introduce the notion of locally updatable and locally decodable codes (LULDCs). While, intuitively, updatability and error-correction seem to be contrasting goals, we show that for a suitable, yet ...
We study the problem of constructing locally computable Universal One-Way Hash Functions (UOWHFs) $\mathcal{H}:\{0,1\}^n \rightarrow \{0,1\}^m$. A construction with constant \emph{output locality}, wh...
On Constructing Locally Computable Extractors and Cryptosystems in the Bounded Storage Model
extractors bounded storage model everlasting security
2009/4/15
We consider the problem of constructing randomness extractors which are locally computable,
i.e. only read a small number of bits from their input. As recently shown by Lu (CRYPTO
‘02 ), locally com...
We consider the problem of constructing efficient locally decodable codes in the presence of a
computationally bounded adversary. Assuming the existence of one-way functions, we construct
efficient ...
Public Key Encryption Which is Simultaneously a Locally-Decodable Error-Correcting Code
Public Key Cryptography Locally Decodable Codes Error Correcting Codes Bounded Channel Model Chinese Remainder Theorem Private Information Retrieval
2008/9/10
In this paper, we introduce the notion of a Public-Key Encryption Scheme that is also a Locally-Decodable Error-Correcting Code (PKLDC). In essence, this is a protocol that is semantically-secure in t...
Locally Invertible Boolean Mappings
Boolean mapping Boolean function locally invertible mapping resetable mapping
2008/5/30
The aim of this paper is to study a novel property of Boolean mappings called local intertibility.We focus on local invertibility of Boolean mappings which model ltering generators and study the case...