• Title/Summary/Keyword: Bit Coin

Search Result 8, Processing Time 0.023 seconds

The Factors Influencing Intention to Use Bit Coin of Domestic Consumers (국내 소비자들의 비트코인 사용 의도에 영향을 미치는 요인 연구)

  • Shin, Dong-Hee;Kim, Yong-Moon
    • The Journal of the Korea Contents Association
    • /
    • v.16 no.1
    • /
    • pp.24-41
    • /
    • 2016
  • Study is about Bit Coin that is electronic cash that is received attention globally in recent. It is increasing domestically that uses bit coin for convenience of micro payment, and also bit coin is possible to exchange each countries' currency. In this point, we searched understanding degree and acceptance of bit coin. Also we applied transformed TAM(Technology Acceptance Model) to search factors that have an effect on consumers' intention to use it. In advance, we analyze features of bit coin, and extract factors through preceding researches for existing electronic cash, because studies for intention to use bit coin are weak in internal and external. First of results is that 'economic efficiency' which is a characteristic variable of bit coin influences 'intention to use,' a dependent variable through 'perceived usefulness,' a parameter. It was investigated that monetary and mental costs that was costed when we use bit coin were less than using other cash. Secondly, 'payment convenience' that is a characteristic variable affects 'intention to use', a dependent variable through 'perceived usefulness,' a parameter. It was measured that problems of inconvenience that include transaction process, cash management time shortage and exchange changes will be solved by using bit coin. Thirdly, 'reliability' that is a perceived risk variable of bit coin has a direct effect on 'intention to use,' a dependent variable. It was investigated that we could achieve purpose of payment because we weren't influenced by breakdown on system by processing distributed database in some computers. Fourthly, 'perceived usefulness,' a parameter of bit coin directly affects 'intention to use,' a dependent variable. Then consumers who want to use bit coin are fascinated bit coin for various usability. Moreover, we want to provide implications to all of finance corporations, companies related electronic cash and bit coin users based on these results.

A Study on Possibility of International Trade by using of Block Chain (국제 무역거래에서 블록체인의 활용 가능성에 관한 연구)

  • KIM, Jae-Seong;LIM, Sung-Chul
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
    • /
    • v.75
    • /
    • pp.137-158
    • /
    • 2017
  • Traditional banking systems of transactions are being replaced by FfinTech. Block Chain System can be a key point in Fourth Industrial Revolution such as AI, Big Data, IOT and also can be used as a tools of smart contract or smart payment systems in International Trade. If banking regulation is to be liberalized FinTech would be more activated in Korea and various attempts would be available especially smart payment in business. There are so many levels to be achieved from the time of contract to the time of clearance. We cannot expect speed and range of IT advancement and international trade, Block Chain system will challenge the traditional banking process. First, Block Chain Payment system can be used in P2P, B2B transaction and also T/T in small business. Second, Bit Coin transaction can be available within the parties without the Trusted Third Party. Third, By using of Block Chain system Traditional International Trade process can be altered.

  • PDF

Analysis of Technology and Security Threats on Blockchain (블록체인 기술 및 보안 위협 분석)

  • Jun, Euna;Lee, Cheulhee
    • Journal of Korea Society of Digital Industry and Information Management
    • /
    • v.14 no.4
    • /
    • pp.47-56
    • /
    • 2018
  • We analyzed security threats and suggested countermeasures about the block chain technologies which has emerged as a core technology of the fourth industrial revolution. We know that increasing the security leads to slow down program processing rate in the block chain systems. The block chain system which is currently an early stage of technological development, to become an economic and social infrastructure, development of technology and active policy implementation will be necessary. We studied on the security threats and countermeasures of the Bit Coin based on block chain. Further research should be undertaken on the possibility that future studies could have a real adverse effect on the integrity of the data.

Examination of Transaction Secure Safety of Block Chain (블록체인 안전성 확보를 위한 거래 검토)

  • Choi, Heesik;Cho, Yanghyun
    • Journal of Korea Society of Digital Industry and Information Management
    • /
    • v.15 no.1
    • /
    • pp.77-86
    • /
    • 2019
  • Comparative analysis to secure safety of Blockchain Many investors have invested in virtual currency such as bit coins as a new investment due to increased popularity of virtual currency around the world. Also, virtual currency such as bit coin has a security technology and it has been relatively proved. popularity of virtual currency is rising as a new investment alternative because of this reason. This paper focused on the block chain's transparency and security of distributed ledger technology, which is relatively safe without third party's intervention. Many governments and companies around the world are developing and working on block chain technological development to introduce due to these reasons However, there are some suggestion that block chain has minor risks to its security. In this paper, it will examine security vulnerabilities from importance of security of Blockchain which relates to transactions of Bitcoin which stored by governments and companies around the world. This paper will propose measure which will improve safety and efficiency of Blockchain technology such as the existing Blockchain method, Blockchain proposal, traceability and awareness about hacking.

RGB-based Personal Virtual Currency Price Information System (RGB 기반 개인용 가상화폐 가격정보 안내 시스템)

  • Park, Se-il;Jang, Jong-wook
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2018.05a
    • /
    • pp.203-204
    • /
    • 2018
  • In recent years, interest in various virtual currencies has been increasing, starting with bit coin, and investment and trading of virtual currencies are being activated. However, since the price of virtual money is unstable and the rate of change of the price is very large, frequent confirmation of the amount of money is required, so that virtual money investors often have to check the virtual money market. Therefore, in this paper, we expect that it will reduce the wasted time on the exchange by using the price information guidance system that collects the virtual currency price information data and express it in RGB, and only the system user can understand the data expression and support the confidentiality.

  • PDF

Virtual currency and confiscation

  • Lee, Ju-Il
    • Journal of the Korea Society of Computer and Information
    • /
    • v.23 no.5
    • /
    • pp.41-46
    • /
    • 2018
  • This study focuses on the legal concept of virtual money, focusing on the case of how we can change the framework of fixed thinking about our trade concept and money with the fourth industrial revolution. The legal character of the virtual money, which played a role as a means of trading in crime, could be discussed, and the court could put it in the category of " property " as a subject of confiscation. Many people are expressing empathy for the fact that there will be many traits in the future world that are difficult to predict. At this side, when the legal validity of the advantage is not recognized as the legal money yet to be recognized as the legal currency, it begins to be discussed as a necessary means of trading between individuals, businesses and individuals. Defining a legal character can be very significant in determining policy direction related to future operations of virtual money. But to date, it is very difficult to establish the legal character of virtual money through existing legislation. Therefore, as we looked at in this case, we examined whether the property was subject to the seizure of the profits from the crime. Attention was also given to the possibility of such abuse of virtual money and whether effective legal interpretation was possible for the categories of assets subject to seizure.

Integer Factorization Algorithm of Pollard's Rho Based on Multiple Initial Values (다중 초기치 Pollards's Rho 소인수분해 알고리즘)

  • Lee, Sang-Un
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.17 no.6
    • /
    • pp.19-25
    • /
    • 2017
  • This paper deals with integer factorization of two prime p,q of SHA-256 secure hash value n for Bit coin mining. This paper proposes an algorithm that greatly reduces the execution time of Pollard's rho integer factorization algorithm. Rho(${\rho}$) algorithm computes $x_i=x^2_{i-1}+1(mod\;n)$ and $y_i=[(y^2_{i-1}+1)^2+1](mod\;n)$ for intial values $(x_0,y_0)=(2,2)$ to find the factor 1 < $gcd({\mid}x_i-y_i{\mid},n)$ < n. It however fails to factorize some particular composite numbers. The algorithm proposed in this paper applies multiple initial values $(x_0,y_0)=(2^k,2^k)$ and ($2^k,2$), $2{\leq}k{\leq}10$ to the existing Pollard's Rho algorithm. As a results, the proposed algorithm achieves both the factorization of all the composite numbers and the reduction of the execution time of Pollard's Rho by 67.94%.

The image construction of the surface and subsurface defects using complex amplitude of the reflected ultrasonic signals from the solid (초음파 반사신호의 복소 진폭을 이용한 교체 내부 결함의 영상 구조)

  • Kim, Hyun;Lim, Ho;Kim, Ki-Yeoul;Koo, Kil-Mo
    • The Journal of Information Technology
    • /
    • v.4 no.2
    • /
    • pp.129-136
    • /
    • 2001
  • Most of the acoustic microscopes have been constructed acoustic image by simply measuring the amplitude of the reflected signal from the specimen. This method fails to produce images of good quality because the change in amplitude is not sensitive enough to specimen with fine variation. In this paper, we have been constructed the acoustic microscope system which has been able to measure simultaneously the amplitude and phase of the reflected ultrasonic signal. And also we have been constructed the amplitude and phase images for the 500 won coin as a sample and the alumium spacimen with internal round defect, and compared and analyzed these images. In expermental result, the phase image have shown better sensitive than the amplitude image and given better contrast for the micro height variation of specimen. It will be expected that the phase image can be used as an additional bit of information to improve ambiguituities in amplitude image on nondestructive testing for specimen with fine variation.

  • PDF