Encryption and decryption data processing method, device and system

Abstract

The embodiment of the invention provides an encryption and decryption data processing method, device and system. The method comprises the steps that first equipment obtains a public key generated by second equipment; the first equipment selects one random bit string; the first equipment employs the public key to encrypt the random bit string, and obtains a first cryptograph; the first equipment employs a one-way function to achieve the mapping of the random bit string; the first equipment employs the decimal numerical value of the random bit string, the Hamming weight of the random bit string and the mapped random bit string to achieve the encryption of cleartext, and obtains a second cryptograph; and the first equipment transmits the cryptographs to the second equipment, wherein the cryptographs comprises the first cryptograph and the second cryptographs. According to the embodiment of the invention, the encryption for a plurality of bits is achieved, and the defect that the encryption efficiency of the cleartext in a single-bit mode is low is ironed out.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of information security, and in particular, to a method, device and system for processing encryption and decryption data. Background technique [0002] The purpose of cryptography is to change the original form of information so that it is difficult for outsiders to understand. Early cryptographic research mainly focused on symmetric encryption systems. In 1976, Diffie and Hellman publicly proposed the idea of ​​asymmetric encryption systems. [0003] Quantum cryptography is an emerging science combining quantum physics and cryptography. Its security depends on the inherent properties of quantum systems, such as uncertainty and non-cloning. Breaking quantum cryptography means denying the laws of quantum mechanics, and quantum cryptography is sometimes referred to as "safer cryptography." After more than 20 years of research and development, quantum cryptography has formed its own ...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an encryption and decryption data processing method, device, and system to overcome the problem of low efficiency of bit-oriented encryption schemes in the prior art

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