Data transfer device
AssigneeHewlett-Packard Development Company, L.P.
InventorsJonathan Peter Buckingham, Liqun Chen, Christopher Williams
Life of this patent
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Abstract
A data transfer device for transferring data to a removable data storage item. The data transfer device receives content data to be stored to the removable data storage item, encrypts the content data using an encryption key, and transforms at least one of predetermined reference data and the encryption key. The data transfer device also encrypts the transformed predetermined reference data using the encryption key or encrypts the predetermined reference data using the transformed encryption key, and then stores the encrypted content data and the encrypted transformed/predetermined reference data to the removable data storage item.
Claims18
A data transfer device for transferring data to a removable data storage item, the data transfer device having a microprocessor and being configured to:
- receive content data to be stored to the removable data storage item;
- encrypt the content data using an encryption key;
- transform predetermined reference data;
- encrypt the transformed predetermined reference data using the encryption key;
- store the encrypted content data and the encrypted transformed predetermined reference data to the removable data storage item;
- and
- in response to an error occurring when retrieving the encrypted content data from the removable data storage item, access the encrypted transformed predetermined reference data to determine a cause of the error.
A data transfer device for transferring data to a removable data storage item, the data transfer device having a microprocessor and being configured to:
- receive content data to be stored to the removable data storage item;
- encrypt the content data using an encryption key;
- transform at least one of predetermined reference data and the encryption key;
- perform at least one of:
- encrypting the transformed predetermined reference data using the encryption key, or
- encrypting the predetermined reference data using the transformed encryption key;
- store the encrypted content data and the encrypted and/or transformed predetermined reference data to the removable data storage item;
- store a copy of the encrypted and/or transformed predetermined reference data;
- retrieve the encrypted and/or transformed predetermined reference data from the removable data storage item;
- compare the encrypted and/or transformed predetermined reference data retrieved from the removable data storage item with the encrypted and/or transformed predetermined reference data stored by the data transfer device;
- and
- generate an error message in the event that the reference data retrieved from the removable data storage item does not substantially correspond with the reference data stored by the data transfer device.
A data transfer device for transferring data to a removable data storage item, the data transfer device having a microprocessor and being configured to:
- receive content data to be stored to the removable data storage item;
- encrypt the content data using an encryption key;
- iteratively encrypt predetermined reference data using the encryption key for at least two cycles;
- store the encrypted content data and the iteratively encrypted predetermined reference data to the removable data storage item;
- and
- in response to an error occurring when retrieving the encrypted content data from the removable data storage item, access the iteratively encrypted predetermined reference data to determine a cause of the error.
A method of a data transfer device for transferring data to a removable data storage item, comprising:
- receiving content data to be stored to the removable data storage item;
- encrypting the content data using an encryption key;
- inverting the encryption key;
- encrypting predetermined reference data using the inverted encryption key;
- storing the encrypted content data and the encrypted predetermined reference data to the removable data storage item;
- and
- in response to an error occurring when retrieving the encrypted content data from the removable data storage item, accessing the encrypted predetermined reference data to determine a cause of the error.
A data transfer device for transferring data to a removable data storage item, the data transfer device having a microprocessor and being configured to:
- receive content data to be stored to the removable data storage item;
- encrypt the content data using an encryption key;
- transform the encryption key;
- encrypt predetermined reference data using the transformed encryption key;
- store the encrypted content data and the encrypted predetermined reference data to the removable data storage item;
- and
- in response to an error occurring when retrieving the encrypted content data from the removable data storage item, access the encrypted predetermined reference data to determine a cause of the error.
Dependencies are inferred from the claim text.