Method for storing critical data
AssigneeSTMicroelectronics International N.V.
InventorMark TRIMMER
Life of this patent
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Abstract
The present disclosure provides a method and electrical device for storing blocks of critical data of the electrical device in a memory that is external to the electrical device. An example method includes: obtaining first encrypted blocks of data by encrypting blocks of critical data using a first encryption key; obtaining second encrypted blocks of data by encrypting blocks of critical data using a second encryption key different from the first encryption key; and storing first and second encrypted blocks of data in the memory.
Claims20
A method for storing blocks of critical data of an electrical device in a memory that is external to the electrical device comprising:
- obtaining first encrypted blocks of data by encrypting the blocks of critical data using a first encryption key;
- obtaining second encrypted blocks of data by encrypting the blocks of critical data using a second encryption key different from the first encryption key;
- and
- storing the first encrypted blocks of data and the second encrypted blocks of data in the memory.
An electrical device configured to store blocks of critical data in a memory that is external to the electrical device by executing the following steps:
- obtaining first encrypted blocks of data by encrypting the blocks of critical data using a first encryption key;
- obtaining second encrypted blocks of data by encrypting the blocks of critical data using a second encryption key different from the first encryption key;
- and
- storing first and second encrypted blocks of data in the memory.
Dependencies are inferred from the claim text.