there is any doubt in the security of that medium. Likewise, companies involved in E-commerce must have a means to verify the customers using the Internet to order goods and services. Public Key Infrastructure, PKI, attempts to provide the answer to the reliability question, as a method of digital security. PKI provides the ability to verify the sender and the recipient of electronic messages, protecting against E-commerce fraud, corporate espionage, and the theft of intellectual property. D 2003 Elsevier…
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