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Method for implementing encryption in storage card, and decryption method and device

  • US 9,348,768 B2
  • Filed: 07/22/2013
  • Issued: 05/24/2016
  • Est. Priority Date: 09/05/2012
  • Status: Active Grant
First Claim
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1. A method for encrypting data in a memory card, comprising:

  • receiving an encryption key input by a user;

    requesting a subscriber identity card for authenticating the encryption key;

    after the authentication is successful, using the authenticated encryption key to encrypt data selected by the user in the memory card to generate encrypted data;

    generating encryption status information, wherein the encryption status information describes non-confidential information of the encrypted data;

    wherein, the encryption key authenticated in the subscriber identity card comprises administrative codes (ADM), a Personal Identification Number1 (PIN1) code, and a Personal Identification Number2 (PIN2) code.

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