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+ | ====== Improving the Reliability of Chip-Off Forensic Analysis of NAND Flash Memory Devices ====== | ||
+ | Wednesday March 8, 2017\\ | ||
+ | Location: CIC Panther Hollow Room\\ | ||
+ | Time: 4:30PM\\ | ||
+ | |||
+ | **Aya Fukami (CMU & National Police Agency of Japan)**\\ | ||
+ | |||
+ | =====Abstract===== | ||
+ | Digital forensics investigators often need to extract data from | ||
+ | physically damaged devices. In such cases, investigators turn to | ||
+ | chip-off forensic analysis, which uses a thermal-based procedure to | ||
+ | physically remove the NAND flash memory chip from the device, so that | ||
+ | raw data can be directly extracted from the chip. The first half of | ||
+ | this talk will present issues related to chip-off analysis, examining | ||
+ | the errors introduced in NAND flash memory in the time between device | ||
+ | seizure and data extraction, as well as the errors introduced by the | ||
+ | thermal-based chip removal process itself. In order to mitigate the | ||
+ | various errors observed during the chip-off analysis process, we | ||
+ | evaluated the effectiveness of read-retry, a hardware-based mechanism | ||
+ | implemented in modern NAND flash memory chips. The second half of this | ||
+ | talk will explain how investigators can leverage read-retry mechanisms | ||
+ | in order to improve the reliability of chip-off forensic analysis. | ||
+ | |||
+ | |||
+ | =====Bio===== | ||
+ | Aya Fukami is a visiting researcher at Carnegie Mellon University | ||
+ | CyLab. She is also a digital forensic scientist at the National | ||
+ | Police Agency of Japan, where she has been conducting low-level data | ||
+ | recovery from digital devices for criminal investigations. Her | ||
+ | current research interest is in NAND Flash memory reliability, | ||
+ | especially how temperature affects the device-level operation. She | ||
+ | received a BSc in Computer Science from Kitakyushu University, and an | ||
+ | MSc in Electrical Engineering from George Washington University, | ||
+ | respectively. | ||
+ | |||
+ | |||
+ | \\ | ||
+ | \\ | ||
+ | **[[seminars| Back to the seminar page]]** |