DNA-chip-based dynamic broadcast encryption scheme with constant-size ciphertexts and decryption keys

Abstract

In this paper we present DNA-DBE, a DNA-chip-based dynamic broadcast encryption scheme. In our scheme, new users can join dynamically without modification of other users' decryption keys. Either the ciphertext or the decryption key is of constant-size. Backward secrecy is achieved in DNA-DBE: if new users join the system dynamically, they will not be able to retrieve past data. The security of our scheme relies on hard biological problems, which are immune to attacks of new computing technologies in the future. There exists a special feature in DNA-based cryptosystems, i.e. the set of encryption keys and the set of decryption keys have a many-to-many relationship. The implementation of more complicated DNA cryptosystems taking advantage of this special feature has been previously left as an open problem. Our DNA-DBE system is a solution to this open problem, which is also the first exploration of DNA based group-oriented encryption system.

Image watermarking using chaotic map and DNA coding

“…Presently, such knowledge about DNA contributes to virtually every area of science, including watermarking (or information hiding) and encryption [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. In the DNA-based watermarking, Clelland et al hided a secret messages in DNA microdot [13].…”

“…Lai et al proposed an asymmetric encryption and signature cryptosystem by combining the technologies of genetic engineering and cryptology [17]. Four years later, they presented a DNA-chip-based dynamic broadcast encryption scheme where new users could join dynamically without modification of other users' decryption keys [26]. Prof. Zhang and his team proposed some creative works for DNA-based image encryption [18,21,22,24].…”

Construction of a genetic conditional learning system in Escherichia coli

“…In the last decade, biomolecular computing became a focus day by day with the quick development of mordern biotechnology. Scientists have successfully constructed many biomolecular computing devices both in vivo and in vitro that can perform computation up to now [2][3][4]. In particular, the construction of genetic memory device has gradually become a hot topic because memory is an important basis of computing [5][6][7][8].…”

DNA-Chip-Based Information Hiding Scheme Achieving Information-Theoretic Security

“…Taking advantage of this property, a DNA-chip-based dynamic broadcast encryption scheme DNA-DBE was proposed in Ref. [10]. Conventional information hiding process conceal secret messages within multimedia files, such as image or video.…”