| 摘要 |
Encrypted data is stored in an online vault. The data in the online vault requires one key from the user and one key from an administrator to decrypt the data. In an embodiment, the key from the user may be stored in a secure area of a portable device. In an embodiment, the key for the administrator is unique to the user. In an embodiment, a backup key is stored in a secure area in the portable device, and the users key may be constructed by applying a function to the backup key.
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