发明授权
US6118872A Apparatus and method for controlling secret data by using positions of
input image points on an image and a sequence of the positions
失效
通过使用图像上的输入图像点的位置和位置序列来控制秘密数据的装置和方法
- 专利标题： Apparatus and method for controlling secret data by using positions of input image points on an image and a sequence of the positions
- 专利标题（中）： 通过使用图像上的输入图像点的位置和位置序列来控制秘密数据的装置和方法
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申请号： US46684申请日： 1998-03-24
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公开(公告)号： US6118872A公开(公告)日： 2000-09-12
- 发明人: Kazunori Kashima , Masataka Matsuura
- 申请人： Kazunori Kashima , Masataka Matsuura
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX9-241408 19970905
- 主分类号： G06F12/14
- IPC分类号： G06F12/14 ; G06F21/00 ; G06F21/20 ; G06F21/24 ; H04L9/08 ; H04L9/32 ; H04N1/44
摘要：
A secret data management apparatus includes an image display unit which displays an image on a display monitor. A position/sequence input unit inputs positions of input image points on the image using an input device and inputs a sequence of the positions using the input device. An encryption unit generates encrypted data of a secret key based on the positions and the sequence from the position/sequence input unit. A secret data storage unit stores the encrypted data of the secret key from the encryption unit in a storage medium. An access allowance unit allows access to the secret key stored in the storage medium when positions of input image points on the image and a sequence of the positions, subsequently specified using the input device at a time of the access, match with the positions and the sequence from the position/sequence input unit. A decryption unit generates plain data of the secret key from the encrypted data stored in the storage medium when the access is allowed by the access allowance unit.
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