Method for processing information in an electronic device, a system, an electronic device and a processing block
First Claim
1. A method for processing information in an electronic device which comprises at least one processing block for controlling the operation of an electronic device and memory, and in which method at least a first private key is used for processing the information, wherein at least a protected mode and a normal mode are established in the processing block, that part of the memory is accessible only in said protected mode, and that information of at least said first private key is stored in the memory that is accessible in said protected mode.
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Accused Products
Abstract
Processing information in an electronic device is carried out by at least one processing block for controlling the operation of the electronic device, and a memory. At least a first private key is used for processing information. At least a protected mode and a normal mode are established in the processing block. Part of the memory can be accessed only in said protected mode. At least said first private key is stored in the memory that is accessible in said protected mode.
123 Citations
15 Claims
- 1. A method for processing information in an electronic device which comprises at least one processing block for controlling the operation of an electronic device and memory, and in which method at least a first private key is used for processing the information, wherein at least a protected mode and a normal mode are established in the processing block, that part of the memory is accessible only in said protected mode, and that information of at least said first private key is stored in the memory that is accessible in said protected mode.
- 7. A system for processing information in an electronic device which comprises at least one processing block for controlling the operation of an electronic device and memory, and which system contains means for using at least a first private key for processing information, wherein at least a protected mode and a normal mode are established in the processing block, that the processing block comprises means for accessing part of the memory only in said protected mode, and that information of at least said first private key is stored in the memory that is accessible in said protected mode.
- 13. An electronic device that comprises means for processing information, at least one processing block for controlling the operation of an electronic device and a memory, and means for using at least a first private key for processing information, wherein at least a protected mode and a normal mode are established in the processing block, that the processing block comprises means for accessing part of the memory only in said protected mode, and that information of at least said first private key is stored in the memory that is accessible in said protected mode.
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15. A processing block that comprises at least one processor, memory, and means for using at least a first private key for processing information, wherein at least a protected mode and normal mode are established in the processing block, that the processing block comprises means for accessing part of the memory only in said protected mode, and that information at least on said first private key is stored in the memory that is accessible in said protected mode.
Specification