A secure guarantee method for information stored in a mobile terminal

Abstract

The invention discloses a security method for the data information stored in a mobile terminal. The method comprises the steps that: firstly, an encryption key and a corresponding decryption key are arranged at the mobile terminal, and a cryptographic algorithm and a corresponding deciphering algorithm are further arranged; the mobile terminal encrypts the data information input by the user with the encryption key and the cryptographic algorithm after receiving the data information input by the user, and stores the encrypted information cryptograph in the mobile terminal; validity authentication is firstly conducted to the user identity of the mobile terminal when the user wants to check the data information stored in the mobile terminal, and if the validity authentication is passed, the information cryptograph is allowed to be decrypted with the decryption key and the deciphering algorithm, and a clear text of the data information is obtained, otherwise, the information cryptograph is not allowed to be decrypted. By adopting the method of the invention, the data information stored in the mobile terminal is only provided for the valid users for checking, thus guaranteeing the safety of the data information.

Description

technical field [0001] The invention relates to the information security technology of wireless communication, in particular to a method for ensuring the security of data information stored in a mobile terminal. Background technique [0002] As mobile terminals such as mobile phones are more and more widely used, the information stored on mobile terminals is also more and more diverse. For example, for the convenience of making calls, users often store phonebook information on mobile phones. The phonebook The phone numbers and other contact information of family members, relatives, friends, etc. related to the user are stored in it. In addition to phone number information, ordinary short messages (SMS) or multimedia short messages (MMS) may also be stored on mobile phones, and pictures or videos taken by users may also be stored on mobile phones with cameras. The mobile phone with the personal assistant function also stores some other data information of the user, and the s...

AI Technical Summary

Problems solved by technology

However, at present, there are no encryption measures or security measures for the internal information of mobile terminals, so the leakage of user privacy still affects users from time to time.

This not only has a negative impact on mobile terminal users, but also hinders the development of more functions in mobile terminals that require information security protection.

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