دورية أكاديمية
Evanesco: Architectural support for efficient data sanitization in modern flash-based storage systems
| العنوان: | Evanesco: Architectural support for efficient data sanitization in modern flash-based storage systems |
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| المؤلفون: | Kim, Myungsuk, Park, Jisung, Cho, Geonhee, Kim, Yoona, Orosa, Lois, Mutlu, Onur, Kim, Jihong |
| المساهمون: | Kim, Jihong |
| بيانات النشر: | Association for Computing Machinery |
| سنة النشر: | 2022 |
| المجموعة: | Seoul National University: S-Space |
| الوصف: | © 2020 Copyright held by the owner/author(s). Publication rights licensed to ACM.As data privacy and security rapidly become key requirements, securely erasing data from a storage system becomes as important as reliably storing data in the system. Unfortunately, in modern flash-based storage systems, it is challenging to irrecoverably erase (i.e., sanitize) a file without large performance or reliability penalties. In this paper, we propose Evanesco, a new data sanitization technique specifically designed for high-density 3D NAND flash memory. Unlike existing techniques that physically destroy stored data, Evanesco provides data sanitization by blocking access to stored data. By exploiting existing spare flash cells in the flash memory chip, Evanesco efficiently supports two new flash lock commands (pLock and bLock) that disable access to deleted data at both page and block granularities. Since the locked page (or block) can be unlocked only after its data is erased, Evanesco provides a strong security guarantee even against an advanced threat model. To evaluate our technique, we build SecureSSD, an Evanesco-enabled emulated flash storage system. Our experimental results show that SecureSSD can effectively support data sanitization with a small performance overhead and no reliability degradation. ; N ; 1 |
| نوع الوثيقة: | article in journal/newspaper conference object |
| اللغة: | unknown |
| العلاقة: | International Conference on Architectural Support for Programming Languages and Operating Systems - ASPLOS, pp.1311-1326; https://hdl.handle.net/10371/186545Test; 000541369300083; 2-s2.0-85082385658; 163142 |
| DOI: | 10.1145/3373376.3378490 |
| الإتاحة: | https://doi.org/10.1145/3373376.3378490Test https://hdl.handle.net/10371/186545Test |
| رقم الانضمام: | edsbas.4E5F6F88 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1145/3373376.3378490 |
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