What did five academicians and scholars attend this academic conference called “blockchain palace”?

Economic Observation Network reporter Hu Yanming

When the blockchain craze swept again, it seemed more rational this time than the frenzy a year ago. On December 7, the "Blockchain Technology and Application" Science and Technology Frontier Forum was held in Shenzhen.

Some people call this conference a "blockchain hall-level" academic conference. Depending on the lineup of participants, no one may question it.

Zheng Zhiming, an academician of the Chinese Academy of Sciences and Wang Xiaoyun, an academician of the Mathematical Physics, were the conveners of the meeting.

Attendees also included Mei Hong, deputy director of the Academic and Publishing Working Committee of the Chinese Academy of Sciences and academician of the Chinese Academy of Sciences, Bao Weimin, academician of the Chinese Academy of Sciences and dean of the School of Space Science and Technology of Xidian University, academician of the Chinese Academy of Sciences and the Chinese Academy of Military Sciences Yin Hao, Director of the Institute of System Engineering, System Engineering Research Institute.

At the same time, Yao Qian, general manager of China Securities Depository and Clearing Corporation, former director of the Digital Currency Research Institute of the People's Bank of China, professor at Fudan University, director of China Computer Federation (CCF) Blockchain Commission, professor of South China University of Technology, Zhujiang Scholar Tang Shaohua and researcher Jin Jian from China Academy of Information and Communication Technology also gave keynote speeches in their respective research fields.

Perhaps this lineup has attracted related industries, or people who are keen on this new technology, from all over the country. At less than 9 am, many people on both sides of the seats at the venue have already bought the "stop tickets".

The organizer of the Chinese Academy of Sciences set the theme of the "blockchain" conference more than a year ago, but in 2019 it hit the hot spot by accident. Mei Hong recalled that at that time, the block chain fever in the Mainland was already too hot for people to understand.

"More than a year ago, the enthusiasm of the currency circle caused the blockchain to enter the cloud and fog," Mei Hong said. At that time, the academic publishing committee and the academician group needed to clarify the foundation. This was a very valuable and promising one. An application model, an application foundation, but what's the problem with it? Where is the technical difficulty? We need to make it clear.

With such questions, the Chinese Academy of Sciences set up an inter-academic forum, and the meeting time has been pushed forward due to other factors. "It may be better to postpone the results. After basic learning, another round of blockchain boom has started." Mei Hong admitted.

The forum was hosted by the Chinese Academy of Sciences, and supported by the Academic and Publishing Working Committee of the Chinese Academy of Sciences, the Ministry of Information Science and Technology, the Department of Mathematical Physics, the Pengcheng Laboratory, the China Academy of Information and Communications Technology, and the Chinese Communications Society.

"In the midst of this boom, we need more calm thinking." Mei Hong said.

Talking from the underlying technology

One of the sponsors, Wang Xiaoyun, an academician of the Chinese Academy of Sciences and a professor at the Institute of Advanced Studies of Tsinghua University and a member of the International Cryptographic Association (IACR Fellow), gave an opening report entitled "Hash Functions and Blockchain Technology."

In the report, Wang Xiaoyun introduced blockchain technology from the perspective of cryptographic technology, and introduced the meaning of blockchain passwords from the underlying technical level.

Wang Xiaoyun's report was quite professional, and the audience was still very serious. Some of them took notes on the computer and notes. In order to clearly understand the content on the PPT, they listened to many standing or extended hands to shoot. This phenomenon also appeared many times in subsequent guest speeches.

She said that since the blockchain technology came out, from personal watching to investor enthusiasm, to today considering its technological innovation and promoting the development of the industry, this process has taken several years.

Speaking of the importance of cryptography, Wang Xiaoyun said that cryptography is the core technology and basic support for ensuring network and information security. Its key scientific problems are mathematical problems, including basic mathematics and applied mathematics. The application of cryptography has led to breakthroughs in the research of several basic mathematical problems. At the same time, breakthroughs in the field of mathematics have also greatly promoted the rapid development of the crypto industry. In addition to mathematical problems, cryptography is also a cross-disciplinary discipline, such as operations research and artificial intelligence.

"Whether it is 3G, 4G, 5G, only the ones that are publicly available for everyone to study are safe and hidden. So far, none of them have proven to be safe." Speaking of 3GPP (3rd Generation Partnership Project) technology At that time, it also supports 3G, 4G, and 5G secure communication technologies, Wang Xiaoyun said.

Regarding cryptography in China, Wang Xiaoyun said that "in terms of cryptographic protocols, our country and other countries are on the same starting line." At the same time, she also pointed out the future development direction of cryptography in China. "Which country first develops standards, We have grasped the opportunity. China urgently needs to be the first to formulate standards and technical specifications for cryptographic protocols such as the Internet of Things, Internet of Vehicles, blockchain, and domestic operating systems. "

When it comes to the relationship between cryptography, hash function and blockchain, Wang Xiaoyun explained, "The hash function is the origin technology of the blockchain, and the signature technology under the hash function is the blockchain technology." Blockchain is a specialized term in hash functions, which is an old concept. "The reason for vigorously developing hash functions is on the one hand high efficiency and on the other hand hash functions can resist all attacks based on data tampering.

Speaking of the origin of blockchain technology, Wang Xiaoyun said that the hash function is an arbitrary length compressed into a fixed length, there is no desired mathematical function to meet the requirements, so cryptographer Ralph Merkle first described the Merkle-Damgard structure in his PhD M1 and M2 are compressed for the first time, and all data is compressed in blocks. This is the structure of Bitcoin and the early data structure of the blockchain.

In addition, in terms of the application of the blockchain, Yao Qian issued suggestions on the current focus of the international payment system; a researcher at the Golden Key of the China Academy of Information and Communications Technology said that ID is an important basic component of blockchain technology and can promote asset development. chain. Blockchain is a system for building a value network. It can achieve a very ideal value exchange system. It must be supervised.

Academician Yin Hao analyzed the Internet security from the aspect of industrial Internet network platform security, how to ensure the security of data exchange, how to prevent attacks, and establish an orderly system; Professor Tang Yunhua of South China University of Technology explained the topic of "blockchain privacy computing framework" .

Status and trends

“As of June 2019, there were 704 blockchain companies across the country, and the top ten cities accounted for 96%.” Fuming University Si Xueming published a report entitled “Current and International Blockchain Applications and Development Trends” in Fudan University. Stated in the report.

"The statistics of 704 companies definitely do not include all kinds of companies that issue coins."

Regarding the overview of the development of the international blockchain industry, Siming said that developed countries have carried out research and application of blockchain from a strategic level. The United States, Britain, Russia, Australia, Japan and other countries have designed national blockchain strategies and roadmaps to promote the development of the blockchain industry.

Multinational giant companies have laid out technological research and application of blockchain. Foreign Internet giants Google, Microsoft, Oracle, IBM, etc. have laid out research on blockchain technology and launched technical solutions and applications. Moreover, foreign open source organizations have vigorously promoted the innovation and development of blockchain technology, and well-known foreign universities have strengthened research on blockchain theory and personnel training.

Regarding the development needs of the blockchain, Si Xueming said that strategically, the top-level design should be strengthened, basic theory and technology research should be emphasized, independent controllable technology and product research and development, and standards and specifications should be accelerated. In terms of tactics, it is necessary to deeply integrate with technologies such as cloud big move and material intelligence, deep integration with information construction, deep integration with existing IT enterprises, and deep integration with big data.

In the closing report, Zheng Zhiming, an academician of the Chinese Academy of Sciences and director of the State Key Laboratory of Software Development Environment, summarized the four major characteristics of blockchain: open consensus, distributed trust, privacy supervision, and smart contracts.

Zheng Zhiming said that from the interconnection of information and everyone, to the interconnection of all things and value, we are moving from digital economy and social governance 1.0 to 2.0. Blockchain is the only way for the development of digital economy. + The next-generation information technology "trust, sharing, and rule of law intelligent platform will help advance this process.

Zheng Zhiming said that the blockchain is a rule interaction system, which is quite expansive or aggressive. Wherever it is promoted, it will be done according to its rules. Therefore, the realization of China's dream from a great country to a strong country must attach importance to the original innovation of blockchain technology.

At the beginning of the forum, Jin Jian, a researcher and host of the China Academy of Information and Communications Technology said, "I hope that the forum will allow more people to see the prospects that blockchain brings to us, and to think more rationally about how to implement innovative practices and solve Challenges in application development. "

People who listened to the meeting for a day did not know whether they saw the prospect of the blockchain, and with these thoughts, where they would go.

Original link: http://m.eeo.com.cn/2019/1207/371378.shtml?from=singlemessage&isappinstalled=0

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