发明名称 |
Temperature-Profiled Device Fingerprint Generation and Authentication from Power-Up States of Static Cells |
摘要 |
A method, system and computer program product for generating device fingerprints and authenticating devices uses initial states of internal storage cells after each of a number multiple power cycles for each of a number of device temperatures to generate a device fingerprint. The device fingerprint may include pairs of expected values for each of the internal storage cells and a corresponding probability that the storage cell will assume the expected value. Storage cells that have expected values varying over the multiple temperatures may be excluded from the fingerprint. A device is authenticated by a similarity algorithm that uses a match of the expected values from a known fingerprint with power-up values from an unknown device, weighting the comparisons by the probability for each cell to compute a similarity measure.
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申请公布号 |
US2009326840(A1) |
申请公布日期 |
2009.12.31 |
申请号 |
US20080146997 |
申请日期 |
2008.06.26 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GEBARA FADI H.;KIM JOONSOO;SCHAUB JEREMY D.;STRUMPEN VOLKER |
分类号 |
G06F19/00 |
主分类号 |
G06F19/00 |
代理机构 |
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代理人 |
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地址 |
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