Define SSL protocol. Mention the services provided by PGP.

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Suresh Chand · Accepted Answer

SSL (Secure Sockets Layer) is an encryption-based Internet security protocol. It was first developed by Netscape in 1995 for the purpose of ensuring privacy, authentication, and data integrity in Internet communications. SSL is the predecessor to the modern TLS encryption used today. The actual operations in PGP are based on five services: Authentication Confidentially Compression Email Compatibility Segmentation 1. Authentication: Authentication basically means something that is used to validate something as true or real. To login into some sites sometimes we give our account name and password, which is an authentication verification procedure. 2. Confidentially: Sometimes we see some packages labeled as ‘Confidential’, which means that those packages are not meant for all people and only selected persons can see them. The same applies to email confidentiality as well. Here, in the email service, only the sender and the receiver should be able to read the message, which means the contents have to be kept secret from every other person, except for those two. 3. Compression: As a default, PGP restricts the message after using the signature but before encryption. This has the advantage of storing space both for e-mail transmission and file storage. 4. Email Compatibility: Some electronic-mail systems only allow the use of blocks including ASCII text. When PGP is used, the minimum part of the block to be transmitted is encrypted. 5. Segmentation: E-mail facilities are restricted to a maximum message length. For instance, some facilities accessible throughout the internet set a maximum length of 50,000 octets. Some messages higher than that should be broken up into smaller segments, each of which is mailed independently.

Define SSL protocol. Mention the services provided by PGP.

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Define SSL protocol. Mention the services provided by PGP.

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