Secure compact flash
First Claim
Patent Images
1. A memory system, comprising:
- a controller; and
memory coupled to the controller;
wherein the controller is configured to cause the memory system to decrypt encrypted data received at the memory system into first decrypted data, to decrypt encrypted data stored in the memory into second decrypted data, and to compare the first decrypted data to the second decrypted data only when the memory system comprises an indicator that indicates that the memory system is a secure memory system, an indicator that indicates that the memory system is configured, and a security feature that is turned on.
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Abstract
Methods and apparatus are provided, such as a memory card with a processor and nonvolatile memory coupled thereto. The nonvolatile memory has a secure area configured to store a user password and a serial number in encrypted form. The card is configured to grant access to the secure area when the card receives a password that matches the stored user password and the card is coupled to a system having the serial number.
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Citations
22 Claims
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1. A memory system, comprising:
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a controller; and memory coupled to the controller; wherein the controller is configured to cause the memory system to decrypt encrypted data received at the memory system into first decrypted data, to decrypt encrypted data stored in the memory into second decrypted data, and to compare the first decrypted data to the second decrypted data only when the memory system comprises an indicator that indicates that the memory system is a secure memory system, an indicator that indicates that the memory system is configured, and a security feature that is turned on. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a memory system comprising a memory; and a reader coupled to the memory system; wherein the memory system is configured to indicate to the reader whether the memory system is a secure memory system, whether the memory system is configured, and whether a security feature of the memory system is turned on; and wherein the reader is configured to encrypt data and to store the encrypted data to the memory of the memory system only when the memory system indicates to the reader that the memory system is a secure memory system, that the memory system is not configured, and that the security feature of the memory system is turned on. - View Dependent Claims (12, 13)
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14. A method, comprising:
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receiving encrypted first data at a memory system from a device only when the memory system comprises a security feature that is turned on and stores a status indicator having an expected value, wherein the encrypted first data comprises a serial number of the device combined with a key; using a controller of the memory system to process the encrypted first data to create processed first data and to process encrypted second data stored in a memory of the memory system to create processed second data; and using the controller to compare the processed first data to the processed second data. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification