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1.发明申请公开(公告)号：US20210127080A1
公开(公告)日：2021-04-29
申请号：US16963166
申请日：2019-01-18
IPC分类号： H04N5/378 , H04N5/347 , H01L27/146 , H04N5/367 , H04N5/374
摘要： A solid-state imaging device includes a pixel part, a reading part for reading a pixel signal from the pixel part and a response data generating part including a fuzzy extractor. The response data generating part generates response data including a unique key in association with at least one selected from among variation information of pixels and variation information of the reading part. The response data generating part generates, when regenerating a key, a unique key using helper data acquired in generation of an initial key, variation information acquired in the regeneration of the key, and reliability information determined based on the variation information acquired in the regeneration of the key.
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2.发明申请公开(公告)号：US20200288078A1
公开(公告)日：2020-09-10
申请号：US16809048
申请日：2020-03-04
发明人： Shunsuke OKURA , Kenichiro ISHIKAWA , Masayoshi SHIRAHATA , Takeshi FUJINO , Mitsuru SHIOZAKI , Takaya KUBOTA
IPC分类号： H04N5/378 , H04L9/08 , H04L9/32 , G06F7/58 , H04N5/369 , H04N5/3745 , H01L27/146
摘要： A fuzzy extractor includes an initial key generating part including a true random number generator, and a key regenerating part. The true random number generator generates a true random number using a read-out signal read from the reading part or a pixel signal read from the pixels of the pixel part in a true random number generation mode. The initial key generating part generates helper data and an initial key based on the true random number generated by the true random number generator and variation information acquired as a response when the initial key is generated. The key regenerating part generates, when a key is regenerated, a unique key based on helper data acquired when the initial key is generated and variation information acquired as a response including an error when the key is regenerated.
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