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Written by Administrator
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Friday, 24 July 2009 08:48 |
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Page 15 of 19 E-mail standardsPrivacy Enhanced Mail (PEM)It is an early IETF proposed standard for securing email using public key cryptography. It was never widely deployed or used as it required deployment of a hierarchical public key infrastructure (PKI) with a single root (eventually impossible). Message Security Protocol (MSP)It can sign and encrypt messages and perform hashing functions. Pretty Good Privacy (PGP)- It is a computer program that provides cryptographic privacy and authentication. PGP is often used for signing, encrypting and decrypting e-mails to increase the security of e-mail communications. It was originally created by Philip Zimmermann in 1991.
- It uses RSA public key encryption for key management and IDEA symmetric cipher for bulk encryption of data.
- PGP products have included an internal certificate 'vetting scheme' to assist in public key distribution. A trust model which has been called a "web of trust".
Multipurpose Internet Mail Extensions (MIME)A specification for formatting non-ASCII messages so that they can be sent over the Internet. Many e-mail clients now support MIME, which enables them to send and receive graphics, audio, and video files via the Internet mail system.
In addition to e-mail applications, Web browsers also support various MIME types. This enables the browser to display or output files that are not in HTML format.
S/MIMESecure/MIME, a version of the MIME protocol that supports encryption of messages. S/MIME is based on public-key encryption technology.
Secure Electronic Transaction (SET)It is developed to send encrypted credit card numbers.
Comprised of three main parts: the electronic wallet, the software running on the merchant’s server at its web site and the payment server that is located at the merchant’s bank.
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Last Updated on Friday, 28 August 2009 05:01 |
Tabulated comparisons of the two cryptography, really help to remeber...
thanx
keep up the good work