| 摘要 |
A method of protecting a media key including obtaining the media key, obtaining an auxiliary key, calculating a split key using the media key and the auxiliary key, encrypting the split key using a wrap key to generate an encrypted split key, assembling the encrypted split key and a communication key to obtain a data bundle, and sending the data bundle to a token, where the media key is extracted from the data bundle on the token to protect data on a storage device.
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