Private key generation and decryption method and system based on iris recognition

Abstract

The invention discloses a private key generation and decryption method based on iris recognition and a corresponding system. According to the invention, a stable association relationship is established by using the iris and the private key; iris locations are acquired and located, normalization processing is carried out on the continuous maximum iris area; regional physical characteristics are screened and drawn by utilizing a two-dimensional Gabor wave; the regional physical characteristics are converted into a two-dimensional code to form an iris code to generate a private key pair; the irisserves as the private key; the problems that the private key is forgotten, lost and stolen and the like are solved, the uniqueness of the private key is ensured, the use is safe and convenient, the defects and shortcomings of private key generation methods for distinguishing same-egg twins and leaking fingerprints by external articles and the like are overcome, and the method and system great significance in block chain development.

Description

Technical field [0001] The invention belongs to the field of blockchain, and in particular relates to a method and system for generating and decrypting a private key based on iris recognition. Background technique [0002] In the world of blockchain, the reliability of all data is based on cryptography, and the most commonly used type of encryption algorithm in the blockchain is asymmetric encryption. Asymmetric encryption relies on a pair of public keys and private keys. The key protects information security. The public key is open to the public to verify information, while the private key is held by oneself. The privacy of the private key determines the encryption reliability of this type of encryption algorithm. A long string of irregular uppercase and lowercase letters with more than 128 digits and numbers is difficult for humans to record directly by memory. They often use copying to electronic memos or hand-copying to paper notebooks to record, so that paper notebooks The ...

AI Technical Summary

Problems solved by technology

At present, some schemes use the method of binding the face and the private key, which has the problem that a small number of identical twins cannot be distinguished from each other; some schemes use the method of binding the fingerprint and the private key. How to provide a private key generation method that is less likely to be lost than a human face and can distinguish identical twins without fingerprints that is leaked by external items is an urgent problem to be solved

Images