When it comes to e-commerce, first thing with pings someone mind is security!! Industry gurus have been putting heart n soul, in order to address this concern. SET was one of endeavor on same lines. Secure Electronic Transaction (SET) is a standard protocol that is used for securing credit card transactions over insecure networks. With the increase in security concerns over Internet SET has emerged as popular protocol for addressing transactions over Internet. Please note clearly, SET itself is not a payment system. It is a a set of security protocols and formats that enables users to employ the existing credit card payment infrastructure on an open network in a secure fashion! SET, developed by VISA and MasterCard (Credit card leaders) is based on X.509 certificates having several extensions. [Just FYI: X.509 is an ITU-T standard for a public key infrastructure (PKI. It specifies standard formats many things such as public key certificates, attribute certificates etc…] SET fe
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