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이길남 京畿專門大學 2001 京畿專門大學 論文集 Vol.- No.29
Electronic Commerce(EC) may be defined as the entire set of process that support commercial activities on a network and information analysis. These activities spawn product information and display events, service, providers, consumers, advertisers, support for transactions, brokering systems for a variety of services and actions, security of transactions, user authentication, etc. Developments in information technologies in recent years have enabled major advances in several areas, including electronic commerce. EC has experienced an explosion due to the convergence of these technological developments, the merging of the telecommunications and computing industries, and the appropriate business climate. The development and impact of EC as a market, research and development area involve issues that are of an interdisciplinary nature. The underlying aspects of EC fall primarily in two areas, these are, business and technology. In addition to technical and business issues, EC implies a large process. Developments in EC are affected by, and have an impact on, a number of other areas including legal and public policy, social and behavioral as well as fundamental economic topics. In order to effectively use EC, users of such systems require various types of wide ranging functionalities that include the ability to search and access relevant information efficiently, secure business transactions against intentional and unintentional corruption and theft of data. To perform a global EC successfully, first data may already exist in digital form but in a legacy format that must be transformed to be useful. Second, as new information is made available by information providers we need to have mechanisms to capture and store this information. System of EC have to be secured against a number of threats such as fraudulent activities by internal and external sources, theft of valuable information. Hence such systems need to be guarded by some specially designed security system to provide security services such as authentication of data and of the entities accessing the system, confidentiality, data integrity, and non-repudiation. Security systems typically consists of a cryptographic system that performs the encryption of plain text data into ciphertext and decryption of ciphertext back into plain text data. Cryption systems can be divided into two categories, these are, a symmetric key cryptosystem where the key information in shared and kept secret between the sender and receiver, and a public key cryptosystem where the sender and receiver do not share the same key. The legal issues involved in EC relate to the trouble the Internet itself has in dealing with law in cyberspace. Law enforcement, ubiquitous cryptography, and contractual issues are all unsettled in the growing EC industry.
이길남 京畿專門大學 2000 京畿專門大學 論文集 Vol.- No.28
This paper is to review on Marine Insurance Contract and its effectiveness such as Maritime perils and Liabilities of each contract party concerned. A contract of marine insurance is a contract that the insurer undertakes to indemnify the assured, in manner and the extent thereby agreed, against marine losses, that is to say, the loss incident to marine adventure. Upon fixing the contract, the insurer and the assured take each own liabilities to perform the contract. The insurer must issue insurance policy to the assured and undertakes to indemnify the assured for the loss and damage due to the maritime risk mentioned in the contract. On the other hand, the assured must pay premium against the insurer's liabilities and bound to disclose every material circumstance. Finally, the assured does his best to do a suing and labouring engagement stipulated in the contract and he may recover from the insurer any expenses incurred to the contract notwithstanding that the insurer may have paid for beyond the insurance amount.