Cybersecurity in times of quantum computing
Published on:
May 20, 2021
Reading time:
minutes
Secure encryption methods are an essential requirement for online commerce in its current form.
What will be affected by quantum computing?
Private data such as bank details or credit card details can only be exchanged if secure communication that cannot be intercepted by third parties is guaranteed. Cryptography and Internet security are among the fields that are likely to be most affected by the changes brought about by quantum computing. So far, most and best encryption techniques are based on so-called one-way functions. These are very easy to compute in one direction. However, to infer the original values from the result requires more computational effort than today's computers can handle. This makes this type of encryption secure. One of the best-known one-way functions is prime factorization, the division of large prime numbers into their smallest factors.
This is the advantage of quantum computers
Unlike classical computers, quantum computers can solve problems such as prime factorization and other one-way functions in a matter of minutes. Conventional encryption methods lose their relevance in one fell swoop due to quantum computing. Therefore, scientists are already working on new methods that cannot be easily circumvented even by quantum computers. So-called post-quantum cryptography is therefore currently a booming branch of research.
Since this field is making similar progress to the development of quantum computers, it is likely that new encryption methods will be available in time. The Internet will therefore not suddenly become an insecure medium. Nevertheless, as quantum computers become more widespread, the transition will very likely be accompanied by some significant changes.
Here you can see the whole blog series "How quantum computers will revolutionize digital marketing".
- Quantum computing in a nutshell - what is it?
- These quantum computers already exist
- How quantum computers work
- Advantages and disadvantages of quantum computing in relation to digital marketing.
- Applications of Quantum Computing
- The revolutionary technology of quantum computing
- Quantum Computing in Digital Marketing - Introduction
- Quantum Computing in Digital Marketing - Web Analytics and Search Engine Marketing
- Quantum Computing in Digital Marketing - Social Media Marketing and AI
- Cybersecurity in times of quantum computing
- Conclusion: The future of quantum computing in digital marketing
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