Eliminação Segura de Arquivos em Memória Não-Volátil

• Julia S. Weber PUCRS
• Avelino F. Zorzo PUCRS

DOI: https://doi.org/10.5753/sbseg.2017.19490

Abstract

The Internet of Things (IoT) and the popularization of mobile devices bring new challenges regarding the removal of files. Techniques traditionally employed in magnetic media are not effective when applied to non-volatile memories, such as flash memory. Consequently, new methods of safe removal have been developed, which employ Zero Override and Block Erase. This work analyzes these methods and proposes a new one, with better performance. The proposed method is hybrid, combining overwriting and deletion operations to obtain a balanced use of these operations, avoid unnecessary deletion of unused blocks and reduce premature memory wear.

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