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A kind of DNA hybridization information storage and encryption method based on the addition and removal of coding chain hairpin structure

A card issuing structure and information storage technology, applied in the field of DNA storage, can solve the problem that the DNA hybrid storage technology has not yet realized the encryption function, etc., and achieve the effect of high security

Active Publication Date: 2022-07-08
HUNAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the problem that the existing DNA hybridization storage technology has not yet realized the encryption function, an encryption method for DNA hybridization information storage is provided. The chain is closed / activated, realizing the hard encryption of DNA hybrid storage technology

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  • A kind of DNA hybridization information storage and encryption method based on the addition and removal of coding chain hairpin structure
  • A kind of DNA hybridization information storage and encryption method based on the addition and removal of coding chain hairpin structure

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Embodiment Construction

[0033] The following will take the writing target information "encryption" (two Chinese characters) as an example to further describe the DNA information storage encryption method of the present invention.

[0034] The following will take the writing target information "encryption" (two Chinese characters) as an example to further describe the DNA information storage encryption method of the present invention.

[0035] like figure 2 As shown, the present embodiment DNA information storage parallel addressing and writing method includes:

[0036] 1) The target information, namely "encryption" two Chinese characters are converted into binary codes, 10111100110100111100001111011100 and divided into 8 fields, each field corresponds to a data unit, including 4 binary digits;

[0037] 2) Map the 1 / 0 value on the 4 binary digits of each of the above fields to the presence / absence combination of the 4 DNA coding strands B1, B2, B3, and B4; for example, the first digit (corresponding...

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Abstract

The invention discloses a DNA storage encryption method based on the specific removal of the hairpin structure of the coding strand, which comprises a combination of the DNA coding strand with the hairpin structure and the restriction endonuclease recognition site and the restriction endonuclease. Among them, specific restriction endonucleases can cut the hairpin structure of a specific coding strand, exposing the coding region and activating it. During the reading of information, if the DNA coding strand is not properly activated, the information cannot be read effectively because the hairpin structure hinders hybridization. When the method is implemented, the sender selects a group from the code chain combination for data writing, sends the storage disk to the receiver, and sends the key (ie, the correct endonuclease information) by another secret method. After receiving the key, the receiver can correctly process the code chain and activate it, but the wrong processing will not be able to activate, and may even cause the storage disk to self-destruct. The invention realizes the hard encryption of the DNA hybridization storage technology and promotes the application of the storage technology.

Description

technical field [0001] The invention belongs to DNA storage technology, in particular to a hybrid storage encryption method for DNA information. Background technique [0002] DNA storage technology is the crystallization of the intersection of life science and information science. DNA is the genetic material selected in the long process of biological evolution. As an information storage material, DNA has the characteristics of extremely long storage time, huge storage information capacity, and strong environmental adaptability, and has great development potential. The current mainstream technology in the field of DNA storage is based on DNA synthesis and sequencing. Although this technology has high information density, it has weaknesses such as poor parallelism, long read and write time, and low encryption performance, which limit the practical application of DNA storage technology. To this end, the applicant team developed DNA hybridization storage technology in the previ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16B50/40G16B25/00G06F21/60
CPCG16B50/40G16B25/00G06F21/602
Inventor 肖祖颖王海华张翼飞张东裔成鹏飞刘翟
Owner HUNAN UNIV OF SCI & TECH
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