| 发明名称 |
System and method for digital watermarking of data repository |
| 摘要 |
A method and system for enhancing security in a database by establishing a bit pattern using secret information, the pattern establishing a watermark that can be detected in a copy (authorized or not) of the database only by using the secret information.
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| 申请公布号 |
US2003217272(A1) |
申请公布日期 |
2003.11.20 |
| 申请号 |
US20020147741 |
申请日期 |
2002.05.15 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
AGRAWAL RAKESH;KIERNAN GERALD GEORGE |
| 分类号 |
G06F21/24;G06F21/00;G09C5/00;(IPC1-7):H04L9/00 |
主分类号 |
G06F21/24 |
| 代理机构 |
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代理人 |
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