| 发明名称 | System and methods for detecting rollback | ||
| 摘要 | In an embodiment of a method of and system for detecting rollback of usage data, the usage data is recording in a database. A sequence value in the database is repeatedly advanced. A copy of the sequence value is repeatedly saved to protected storage. The copy of the sequence value in the protected storage is compared with the sequence value in the database, and it is determined whether the result of the comparison is consistent with normal operation of the database since the previous save to protected storage. | ||
| 申请公布号 | US9098676(B2) | 申请公布日期 | 2015.08.04 |
| 申请号 | US200812148189 | 申请日期 | 2008.04.16 |
| 申请人 | SafeNet, Inc. | 发明人 | Elteto Laszlo |
| 分类号 | G06F17/00;G06F21/10;G06F21/57;G06F17/30 | 主分类号 | G06F17/00 |
| 代理机构 | Drinker Biddle & Reath LLP | 代理人 | Drinker Biddle & Reath LLP |
| 主权项 | 1. A method of detecting rollback of usage data, comprising: recording usage data and a sequence value in a database; saving a copy of the sequence value to protected storage other than said database other than while saving of a copy of an item the usage of which was recorded in the database; advancing the sequence value in the database; comparing the copy of the sequence value in the protected storage with the sequence value in the database; determining whether the result of the comparison is consistent with normal operation of the database since a previous save to the protected storage; and repeating the saving, advancing, and comparing at intervals while running an item the usage of which was recorded in the database. | ||
| 地址 | Belcamp MD US | ||