A data security method and device

By storing the shard key of the master key in non-adjacent storage locations and temporarily splicing to form the enclosed key, the problem of hidden dangers of enclosed key leakage is solved, and the high security use of enclosed keys is achieved.

CN111680325BActive Publication Date: 2025-03-25WEBANK (CHINA)
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Patent Information

Application Number
CN202010507985.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-06-05
Publication Date
2025-03-25
Estimated Expiration
2040-06-05

AI Technical Summary

Technical Problem

In the prior art, there are major hidden dangers of leakage during the use of the encrypted key, especially during the system's storage exchange and exchanging process, the key may be analyzed and utilized by hackers.

Method used

By storing the shard key of the master key in each storage location that is not adjacent and temporarily splicing to form the enclosed key when needed, the enclosed key is generated and stored only during use, thereby reducing the risk of key leakage.

Benefits of technology

It effectively reduces the hidden dangers of the encryption key during use, enhances the security and use of the key, and prevents malicious tampering with the encryption of data.

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Abstract

The present invention discloses a data staking method and device, wherein the method is as follows: a data staking device obtains data to be staked; the data staking device obtains the shard keys from the non-adjacent storage locations, and uses the keys spliced ​​by the shard keys according to the preset splicing rules corresponding to the preset segmentation rules as the staking keys; the data staking device creates a temporary storage space, and stores the staking keys in the temporary storage space; the data staking device obtains the data fingerprint of the data to be staked based on at least the staking keys and the data to be staked in the temporary storage space, and deletes the staking keys in the temporary storage space. When the above method is applied to Fintech, the staking keys are only generated during the use of the staking keys, thereby greatly reducing the potential risk of leakage of the staking keys.
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