发明名称 |
Encryption method and system for portable data |
摘要 |
A system and method allows portable, encrypted data to be accessible through multiple hosts, including new hosts (14), without requiring a secure link to the new hosts. A split key encryption system encrypts (52) data and stores the encrypted data on a portable device (10). A split of the encryption key is stored (54) in the portable device (10), and another split of the key is stored (54) in a home host (12) . A password-modified key is then made (58) by combining a password with the encryption key. This password-modified key is then reduced (58), with one split being stored on the host (12) and another split stored on the portable device (10) . Data can be accessed with a new host (14) by transferring (78) the host password-modified split to the new host (14) and entering (80) the password into the portable device (10). |
申请公布号 |
US5623546(A) |
申请公布日期 |
1997.04.22 |
申请号 |
US19950494129 |
申请日期 |
1995.06.23 |
申请人 |
MOTOROLA, INC. |
发明人 |
HARDY, DOUGLAS A.;FOSSEY, CRAIG R.;BALOGH, CRAIG R.;TUGENBERG, STEVEN R. |
分类号 |
G06F21/00;G07F7/10;H04L9/08;(IPC1-7):H04L9/32;G06F3/06 |
主分类号 |
G06F21/00 |
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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