Importance

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Abstract

The present invention relates to the field of data processing, and specifically to a method and device for data processing. The method comprises: preprocessing an array-to-be-processed; carrying out by means of a predetermined processing method secondary processing on the array-to-be-processed so as to obtain secondary processing results; acquiring an index number from a predetermined place in the secondary processing results; acquiring from the secondary processing results data from predetermined digits on the basis of the index number; converting the acquired data into decimal data; determining whether the bit length of the decimal data is shorter than a second predetermined length; if shorter, adding zeros in front of the high-order bit of the decimal data until reaching the second predetermined length, and regarding the decimal data thereof as processed data; if not shorter, continuously acquiring data from the second predetermined length starting from the low-order bit of the decimal data and regarding said data as processed data. The processing method is simple, and the processed data is irreversible and therefore can be applied to forms of identification.

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First Claim