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DNA hybridization information storage encryption method based on 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 problems that DNA hybrid storage technology has not yet realized the encryption function, and achieve high security effects

Active Publication Date: 2021-10-22
HUNAN UNIV OF SCI & TECH
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  • Application Information

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

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Embodiment Construction

[0033] The method for storing and encrypting DNA information of the present invention will be further described in detail below by taking the writing target information "encryption" (two Chinese characters) as an example.

[0034] The method for storing and encrypting DNA information of the present invention will be further described in detail below by taking the writing target information "encryption" (two Chinese characters) as an example.

[0035] Such as figure 2 As shown, the parallel addressing and writing method for DNA information storage in this embodiment includes:

[0036] 1) Convert the target information, that is, the two Chinese characters "encryption" into binary code, 10111100110100111100001111011100 and divide it 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...

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Abstract

The invention discloses a DNA storage encryption method based on specific removal of a hairpin structure of a coding chain. The DNA storage encryption method comprises a set of combination of a DNA coding chain with a hairpin structure and a restriction enzyme recognition site and a restriction enzyme, wherein the specific restriction enzyme can cut off the hairpin structure of the specific coding chain, so that the coding region is exposed and activated. In the information reading process, if a DNA coding chain is not correctly activated, the information cannot be effectively read due to the fact that hybridization is hindered by a hairpin structure. When the method is implemented, a sender selects one group from a code chain combination for data writing, sends a storage disk to a receiver, and sends a secret key (namely correct incision enzyme information) by using another confidential way. After receiving the secret key, the receiver can correctly process and activate the coding chain, but cannot activate the coding chain due to wrong processing, and even may cause self-destruction of the memory disk. Hard encryption of the DNA hybrid storage technology is realized, and application of the storage technology is promoted.

Description

technical field [0001] The invention belongs to DNA storage technology, in particular to a DNA information hybrid storage encryption method. Background technique [0002] DNA storage technology is the crystallization of the cross fusion 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, large storage information capacity, and strong environmental adaptability, and has great development potential. At present, the 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 limits the practical application of DNA storage technology. To this end, the applicant team developed a DNA hybrid storage technology in its previous...

Claims

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Application Information

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