Dec 11
21
Electronic Commerce
Initially, the Internet is designed for use in government and academic users, but now it is quickly commercialized. It is an online “shops”, even if the electronic “shopping malls”. Customers browsing on their computers can view the products, detailed descriptions, and sometimes even try to sample what they can not afford to buy their keyboards, on a whim, they can pay by credit card, passing the necessary data modem .. but listen to the Internet is a very simple clever hacker, so by sending a coded message to your credit card number is called the problems. It should be relatively safe from a credit card number is encrypted hard to break the code to send. Either generally applicable to the Internet would require a standard encryption protocols, or to make prior arrangements between buyers and sellers. Consumers and retailers could see a windfall if these problems are solved. Traders are safe and can easily be divided into the supply of electronic money motivates more web surfers to online shoppers. Electronic money it easier for small companies already enjoyed a degree of automation, many large companies such as Electronic Data Interchange heritage through electronic documents flowing streams of cash instead of the back-end financial processes to achieve.
We have four key technology to solve problems for consumers, and coat the e-money for the same values ??as our real and perceived physical notes and coins in these four key areas:. Security, authentication, anonymity and divisibility.Commercial R & D departments and university laboratories are measures to deal with security, and internet access and private network events to develop. Venerable response to safeguarding sensitive data such as credit card numbers, is to encrypt the information before use. MIT’s Kerberos, which is named after the three-headed guard dog of Greek mythology, is one of the best-known private-key encryption technologies. It creates an encrypted data packet, the label that is sure to identify the user. make purchases, create a flag during a number of coded messages to the exchange of the Kerberos server, which sits on your computer, and whom you are communicating. The latter two systems, the secret key to the Kerberos server to protect the data against. from prying eyes and ensure that data is not modified during transmission, but this technique has the potential weak link: Breach of the server, and the watchdog rolls and play dead option for private key encryption, public key. . system, which connects directly to consumers and merchants companies have two key public-key encryption: .. to encrypt, the other to terminate a message is waiting to receive a message published in a digital key to send money to someone, you can search for public-key algorithm used to encrypt and the receiver then pay half of the private key pair for encryption and decryption While strengthening of e-business from theft, the cost is: .. Processing above the encryption / decryption enables high-volume, low fees invaluable. Processing within a reasonable time, a Secure Digital Signature conspires against to keep the low cost per transaction. Depending on the length of the key, the average machine is just a sign of twenty and fifty messages per second. Decryption is faster. One way to factor in overhead is the Trustee’s an organization that collects lots of small trading prior to the credit card company for consideration. the first virtual, Internet-based banking organization that is based on this approach. Consumers register the First Virtual credit cards by telephone to remove safety hazards, and since then he uses the personal identification numbers (PIN) to make purchases.
Encryption can help ensure that the power of money, but we must also ensure that no one can change the data – in particular, of the coin – both sides of the transaction. form of authentication is a secure hashing algorithms, a large multi-megabyte file is a relatively short number, which consists of a few hundred pieces to give. We use a substitute for a file – with the smaller to save computation time – to ensure the reliability of a larger block of data verification. Hash algorithms operate in the same way as the checksums used in communication protocols: the sender adds up all the bytes of a data packet and increases the number of packages. The receiver performs the same calculation and compares the two sums make sure that all was well. Possible Implementation of Secure Hash functions have a zero-knowledge proof system, based on challenge / response protocols. The server asks the question, and the system provides access to an answer. If the answer is correct, access is granted. In practice, developers can integrate the well-known software or hardware encryption device, and a challenge to the random number string. The device can bijvoorbeeld, says leader in the security hash function assumption genereren.The third part of the e-currency infrastructure is anonimiteit – de mogelijkheid buy and sell what we want without fundamentele vrijheid If privacy is not selected, all the transactions, but also the analysis of our spending habits could. eventually the company’s databases, individual companies or clearing houses in the center, as is now to follow our credit history. Serial numbers provide the best chance to send our consumption habits of the outside world. This paper therefore floats freely throughout the economy, that serial numbers on our spending habits reveals. But the company mints electronic dollar has a database of serial numbers and records, brought the currency to maintain bought dollars. It is important to build a certain anonymity of electronic money. Blind signatures are the answer. Was conceived by a company called digital cash, it allows consumers scramble to serial numbers. When a consumer e-lift, the computer calculates the required number of digital coins and generate random serial numbers of coins. PC offers a blinding factor, a random number that he used to tell the serial numbers of the coin. Bank encodes a blind songs in their own secret key, and charge the customer’s account. The Bank shall send a coin back to the consumer, which removes the blinding factor. Consumers can spend their coins to the bank validated, but the bank is a record of how coins were used.
The fourth part of the technical development of electronic money is flexibility. All can work well when transactions use a nice round dollar amounts, but that changes when a company sells about a few cents or even fractions of cents page, change the business model on the Internet. Electric money schemes must be able to handle large amounts at the marginal cost per transaction. Millicent, a division of Digital Equipment, of this objective. Millicent uses a variation of a digital check-local model validation on the server vendor. Millicent is based on third-party organizations that provide customer relationship management, billing and other administrative functions. Millicent use the bag of transactions, digital cash, which is only valid for Millicent. The bonus issue is a digital signature, serial, and the specified value (usually a penny or less). Transactions Millicent used to check variation of the zero-knowledge proof system. Consumers will receive a secret code to receive scrip. This proves ownership of the coin when it is issued. Seller subject in the scriptures use the value of client-Master Secret secretly track consumers. The system has not yet been commercially launched, but said that the internal testing of digital transactions over TCP / IP networksindicate that the system is approximately 1,000 requests per second to confirm the TCP connection will take care Most of the processing time. The digital system sees the way for companies to charge Internet users to receive information on the Web
sites.
security, authentication, anonymity, divisibility, and all the developers working on joint efforts to open the locks of electronic commerce in the near future output. The fact is that e-money is a genius out of the bottle. The market demand for e-money because of new efficiencies that will drive the cost of both consumers and service transactions. Consumers everywhere want to grace the global market, it is not tied to the bankers hours. This pushes the efficiency of the developers of the current technical hurdles to overcome in order to meet the pieces of paper as our most trusted medium of exchange.