B2B Integration : A Practical Guide to Collaborative E-commerce

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Internet Security 319 Continued from page 318 - &jer 500 separate entities and market makers in power industry - Trading an estimated $35 billion+ in electric pow er transmission capacity Figure 10.20. — OASIS consists of over 500 separate entities and market makers in the electric power industry, trading an estimated $35 billion in transmission capacity generates multi-million dollar transactions demands both dataencryption and user-authentication capability. Security has to be strong enough to guarantee the integrity of the billing and payments that will soon be transferred onto OASIS. OASIS sites that have implemented TradeWave's TradeVPI (Virtual Private Internet) solution have overcome each of the security concerns that previously stunted the development of e-commerce on the Web. Security concerns that OASIS participants face include effective authorization mechanism that controls users' access to the VPN, as well as control over what information users can view, based on their level of trust. Mutual authentication is needed to verify both those sending and those receiving information. Strong encryption is needed, along with tools that ensure that messages are not altered in any Continue on page 320
320 B2B Integration — A Practical Guide to Collaborative E-commerce Continued from page 319 way. Once a message is sent, non-repudiation capability must be in place so that there is no question who sent or received a particular message. TradeWave secured OASIS transactions by building upon an Entrustbased Public Key Infrastructure (PKI) to create a nonproprietary, open-architecture solution that meets all relevant industry, government and international security standards. The standard Entrust PKI was advanced by 'Web-enabling' it, automating its ability to issue certificates and adding an access-control tool that handles data-access privileges for each user. Security Implementation at MAIN The major TradeVPI components that support the OASIS architecture at JTSIN participant MAIN (Mid-America Interconnected Network) are the TradeWave's online certificate authority (CA) service, client and server software and the TradeAccess Control Server software. • A trusted CA directory manages and distributes electronic keys for encrypting information and electronic certificates for authenticating user and server identities. • TradeAgent client enables a user's Web browser to gain secure access to the Web pages of MAIN and other participating OASIS utilities. • TradeAgent Server provides secure MAIN resources, such as confidential OASIS pages, to TradeAgent client users. • Both the TradeWave client and server software encrypt and decrypt data detailing the pricing and availability of electricity at MAIN and other OASIS participants. • The TradeAccess Control Server software ensures that authenticated users with the proper access privileges can access certain protected MAIN and OASIS resources. User Authentication Users must first be approved by a local registration agent (LRA), who provides the user with a security profile. MAIN'S LRA then confirms Continue on page 321
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Chapter 2 Components, Benefits, Cha
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B2B Integration : A Practical Guide to Collaborative E-commerce

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