Hand-held equipment data encryption and decryption method and hand-held equipment peripheral equipment thereof

Abstract

The invention relates to a hand-held equipment data encryption and decryption method and hand-held equipment peripheral equipment with encryption and decryption functions. In the hand-held equipment data encryption and decryption method, the hand-held equipment peripheral equipment with the encryption and decryption functions is used for encrypting and decrypting private data in the hand-held equipment, when the encryption and the decryption are completed, the hand-held equipment peripheral equipment with the encryption and decryption functions can be physically separated from the hand-held equipment, when the hand-held equipment is not connected with the hand-held equipment peripheral equipment with the encryption and decryption functions, the private data in the hand-held equipment can not be encrypted, and the encrypted data can not be decrypted, so the security of the encrypted data is ensured. A key used during the encryption and the decryption is stored in the hand-held equipment peripheral equipment with the encryption and decryption functions and is bound with the hand-held equipment peripheral equipment, and the security and the uniqueness of the encryption key are ensured.

Description

technical field [0001] The present invention relates to the technical field of handheld devices, in particular to a data security encryption and decryption method of the handheld device and peripherals of the handheld device with encryption and decryption functions. Background technique [0002] With the increasing maturity of mobile communication technology and the rapid development of handheld devices such as mobile phones and PDAs, the functions of handheld devices are becoming more and more powerful. In addition, it has the advantage of being more portable, which is deeply loved by the public. But at the same time, the security of data information stored locally on handheld devices has brought new problems to people, especially address books, text messages, pictures that involve personal privacy, emails that involve commercial secrets, and electronic contracts. And so on, these data are very important, once stolen will bring great hidden danger to the user of handheld d...

AI Technical Summary

Problems solved by technology

But at the same time, the security of data information stored locally on handheld devices has brought new problems to people, especially address books, text messages, pictures that involve personal privacy, emails that involve commercial secrets, and electronic contracts. Wait, these data are very important. Once stolen, it will bring major security risks to users of handheld devices such as mobile phones and PDAs

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