Information and communication networks (hereafter referred to simply as "networks") have become an integral part of our daily lives. The processing of payments made using electronic money or credit cards, which we use every day, is performed through networks. More and more appliances are becoming smart appliances -- devices such as televisions, air conditioners, and vacuum cleaners that can be controlled using smartphones or upgraded through network connections. In the business sector, sensors are being used in industries such as manufacturing and agriculture to collect data so that it can be used to improve quality and raise productivity.
The use of the IoT is advancing in various fields, accelerating the rate at which the objects around us are connected by networks. Society is expected to grow even more reliant on networks in the future.
The security of the communications carried by these networks is vitally important. Networks carry all kinds of confidential information regarding individuals, companies, nations, and more. This information is protected using encryption so that it won't be leaked to any third parties along the way, where it could be used to cause tremendous harm.
Many cryptographic communication technologies use complex formulas. It takes a prodigious amount of time to crack this encryption using modern computers, so the security of the transmitted data is protected.
However, the arrival and rapid evolution of quantum computers is beginning to threaten that security.
Hopes are being pinned on quantum computers, with their overwhelming computation abilities, as devices that will transform society. Thanks to research being conducted around the globe, they are drawing closer to actual practical application. However, this research has also discovered that quantum computers may be able to instantly crack encryption which would take thousands or tens of thousands of years to crack using conventional computers.
The ability to easily crack the encryption used in communications creates the risk of valuable information being leaked. The rise of quantum computers threatens the security afforded by current cryptographic communication technologies.