发明名称 |
Secure Flash-Memory Card Reader with Host-Encrypted Data on a Flash-Controller-Mastered Bus Parallel to a Local CPU Bus Carrying Encrypted Hashed Password and User ID |
摘要 |
A secure flash-card reader reads a user ID from a secure card and finds a matching entry with a hashed password in a user table on the reader. An encrypted key is received from a secure host that hashes and encrypts a password the user types into the host and the user's ID. A card decryption engine uses a random number to decrypt the encrypted key and recover the hashed password and user ID from the secure host, which is compared by a comparator to the hashed password and user ID from the user table. A mismatch causes an access controller to block access to encrypted data on the secure card. Flash data is transferred over a flash-serial buffer bus between flash-card controllers and a RAM buffer. An encryption engine on the flash-serial buffer bus encrypts and decrypts data and connects to a serial engine to the host.
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申请公布号 |
US2007198856(A1) |
申请公布日期 |
2007.08.23 |
申请号 |
US20070623863 |
申请日期 |
2007.01.17 |
申请人 |
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发明人 |
LEE CHARLES C.;YU I-KANG;LEE EDWARD W.;SHEN MING-SHIANG |
分类号 |
G06F12/14 |
主分类号 |
G06F12/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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