| 摘要 |
Data on a storage device may be marked as sensitive data and this marked sensitive automatically destroyed (e.g., scrubbed) upon erasure. For example, when sensitive data is erased, new data may be immediately written over the erased sensitive data. To destroy the erased data, random characters and/or a fixed sequence of characters may be written over the erased data. The storage device, the operating system, and/or other software may share tasks related to tracking and scrubbing sensitive data. Scrubbing may include writing a fixed sequence, such as zeroes, or writing random characters of data. |
| 主权项 |
1. A method, comprising:
receiving an instruction to delete data from a storage device, wherein the data occupies a portion of the storage device; changing use bits that correspond to the data from in-use status to not-in-use status, wherein one use bit corresponds to one data bit; determining whether the data is marked as sensitive data in sensitive data bits, wherein one sensitive data bit corresponds to one data bit; and when the data is marked as sensitive data, scrubbing the portion of the storage device. |
