Publication

Not Just for Errors: Codes for Fast and Secure Flash Storage

2010
Conference Papers

Abstract

Error-correcting codes are normally employed in storage devices to guarantee the integrity of data in the presence of errors. This paper presents two schemes where error-correcting codes are used for entirely different purposes. In the first part of the paper, a new coding paradigm is proposed to improve the write performance of multi-level flash devices. By slightly relaxing the accuracy of cell programming, significant speed-up can be achieved. The resulting write inaccuracies are then corrected by codes that are tailored for the appropriately restricted error model. In the second part, new low-complexity codes are proposed to protect the security of sensitive data in the presence of imperfect physical erasure processes. Codes that have optimal encoding and decoding complexities are constructed to allow fast storing and retrieval of secret data, and guarantee unconditional security of data against an adversary with access to parts of the secret that failed to erase.

Official source

https://infoscience.epfl.ch/entities/publication/e1fa0983-23d0-483b-a195-78645e1eb426

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e1fa0983-23d0-483b-a195-78645e1eb426

About this result

Related concepts (32)

Error correction code

In computing, telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels. The central idea is that the sender encodes the message in a redundant way, most often by using an error correction code or error correcting code (ECC). The redundancy allows the receiver not only to detect errors that may occur anywhere in the message, but often to correct a limited number of errors.

Computer data storage

Computer data storage is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers. The central processing unit (CPU) of a computer is what manipulates data by performing computations. In practice, almost all computers use a storage hierarchy, which puts fast but expensive and small storage options close to the CPU and slower but less expensive and larger options further away.

USB flash drive

A USB flash drive (also called a thumb drive in the US, or a memory stick in the UK & Pen Drive in many countries) is a data storage device that includes flash memory with an integrated USB interface. It is typically removable, rewritable and much smaller than an optical disc. Most weigh less than . Since first appearing on the market in late 2000, as with virtually all other computer memory devices, storage capacities have risen while prices have dropped.

Related publications (8)

Not Just for Errors: Codes for Fast and Secure Flash Storage

Chat with Graph Search

Magnetism of Low-dimensional Metallic Structures

Reproduction of security documents and color images with metallic inks

Minimum distance properties of coded modulations based on iterated chaotic maps