Researchers have generated a huge true random number using DNA synthesis.
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RNG (Random Number Generator) and RTP (Return Per Player) are the two fundamental acronyms to be known to anyone passionate about slots: the first refers to the algorithm essential for the operation of slot machines, the second is the more interesting one for players, as it indicates the statistical return of the online (or land-based) casino. THE RANDOM NUMBER GENERATOR. For a slot machine, the random number generator (RNG) is everything. In the early days, slot machines used mechanical concepts for randomization which obviously has limitations. In the past several decades, the entire random number.
It’s the first time that a number of this magnitude has been created by biochemical means.
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True random numbers are required in fields as diverse as slot machines and data encryption. These numbers need to be truly random, such that they cannot even be predicted by people with detailed knowledge of the method used to generate them.
“[The new method] has the advantage of being able to generate huge quantities of randomness that can be stored in an extremely small space, a single test tube.”
As a rule, they are generated using physical methods. For instance, thanks to the tiniest high-frequency electron movements, the electrical resistance of a wire is not constant but instead fluctuates slightly in an unpredictable way. That means measurements of this background noise can be used to generate true random numbers.
Now, for the first time, researchers have described a non-physical method of generating such numbers: one that uses biochemical signals and actually works in practice. In the past, the ideas put forward by other scientists for generating random numbers by chemical means tended to be largely theoretical.
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For this new approach, the researchers applied the synthesis of DNA molecules, an established chemical research method frequently employed over many years. It is traditionally used to produce a precisely defined DNA sequence. In this case, however, the research team built DNA molecules with 64 building block positions, in which one of the four DNA bases A, C, G, and T was randomly located at each position. The scientists achieved this by using a mixture of the four building blocks, rather than just one, at every step of the synthesis.
As a result, a relatively simple synthesis produced a combination of approximately three quadrillion individual molecules. The scientists subsequently used an effective method to determine the DNA sequence of five million of these molecules. This resulted in 12 megabytes of data, which the researchers stored as zeros and ones on a computer.
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However, an analysis showed that the distribution of the four building blocks A, C, G, and T was not completely even. Either the intricacies of nature or the synthesis method deployed led to the bases G and T being integrated more frequently in the molecules than A and C. Nonetheless, the scientists were able to correct this bias with a simple algorithm, thereby generating perfect random numbers.
The main aim of the researchers was to show that random occurrences in chemical reaction can be exploited to generate perfect random numbers. Translating the finding into a direct application was not a prime concern at first.
“Compared with other methods, however, ours has the advantage of being able to generate huge quantities of randomness that can be stored in an extremely small space, a single test tube,” says Robert Grass, a professor at the Institute of Chemical and Bioengineering at ETH Zurich who led the team. “We can read out the information and reinterpret it in digital form at a later date. This is impossible with the previous methods.”
The research appears in Nature Communications.
Source: ETH Zurich