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US 8,301,119 B2Granted
Method and apparatus for validating integrity of a mobile communication device
AssigneeViaSat, Inc.
InventorsTy Lindteigen, Franklin David Van Voorhees
Life of this patent
Estimating the term…
Abstract
A method for validating integrity of a mobile communication device includes installing an integrity verification application on the mobile communication device. The method also includes establishing a first pass indicator and a second pass indicator including receiving a first instance of the first pass indicator. The method also includes receiving a second instance of the first pass indicator as a challenge for verification. In response to receiving the second instance of the first pass indicator, the second pass indicator may be displayed as an indication of the integrity.
Claims19
A method for validating integrity of a mobile communication device, the method comprising:
- installing an integrity verification application on the mobile communication device, wherein the integrity verification application comprises a list of expected signatures for data on the mobile communication device;
- running the integrity verification application to validate the data based on the expected signatures;
- establishing a first pass indicator and a second pass indicator, wherein establishing the first pass indicator and the second pass indicator comprises:
- receiving a first instance of the first pass indicator;
- performing a first integrity check calculation on non-volatile memory of the mobile communication device using the first instance of the first pass indicator as a seed value to provide a first integrity check value;
- receiving the second pass indicator;
- splitting a parameter of the second pass indicator against the first integrity check value to provide a split of the second pass indicator;
- and
- storing the split of the second pass indicator in the non-volatile memory of the mobile communication device;
- thereafter, receiving a second instance of the first pass indicator as a challenge for verification, and in response to receiving the second instance of the first pass indicator:
- performing a second integrity check calculation on the non-volatile memory of the mobile communication device using the second instance of the first pass indicator as a seed value to provide a second integrity check value, the second integrity check calculation being different from the first integrity check calculation;
- determining the second pass indicator based on the split of the second pass indicator and the second integrity check value;
- and
- displaying the second pass indicator as an indication of the integrity.
11 more elements
A mobile communication device comprising:
- a first integrity verification application comprising a list of expected signatures for data on the mobile communication device;
- an initialization module configured to establish a first pass indicator and a second pass indicator, the initialization module comprising:
- an input module configured to receive the first pass indicator and the second pass indicator;
- a first integrity check calculation module configured to calculate a first integrity check on non-volatile memory of the mobile communication device using the first pass indicator as a seed value to provide a first integrity check value;
- a splitting module configured to split a parameter of the second pass indicator against the first integrity check value to provide a split of the second pass indicator;
- and
- a storing module configured to store the split of the second pass indicator in the non-volatile memory of the mobile communication device;
- a second integrity verification module configured to receive the first pass indicator as a challenge for verification, the second integrity verification module comprising:
- a second integrity check calculation module configured to calculate a second integrity check on the non-volatile memory of the mobile communication device using the first pass indicator as a seed value to provide a second integrity check value;
- a determining module configured to determine the second pass indicator based on the split of the second pass indicator and the second integrity check value;
- and
- a display module configured to display the second pass indicator as an indication of integrity.
9 more elements
A method for validating a mobile communication device, the method comprising:
- installing an integrity verification application on the mobile communication device, wherein the integrity verification application comprises a list of expected signatures for data on the mobile communication device;
- establishing a first pass indicator and a second pass indicator, wherein establishing the first pass indicator and the second pass indicator comprises:
- receiving the first pass indicator;
- performing a first integrity check calculation on non-volatile memory of the mobile communication device using the first pass indicator as a seed value to provide a first integrity check value;
- receiving the second pass indicator;
- splitting a parameter of the second pass indicator against the first integrity check value to provide a split of the second pass indicator;
- and
- storing the split of the second pass indicator in the non-volatile memory of the mobile communication device
- receiving a second instance of the first pass indicator as a challenge for verification, in response to receiving the second instance of the first pass indicator:
- performing a second integrity check calculation on the non-volatile memory of the mobile communication device to provide a second integrity check value,
- the second integrity check calculation being different from the first integrity check calculation;
- determining the second pass indicator based on the split of the second pass indicator and the second integrity check value;
- and
- displaying the second pass indicator as an indication of integrity.
11 more elements
Dependencies are inferred from the claim text.