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4.4) The record protocol sits underneath the other protocols, right?... (SSL)




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This article is from the Secure Sockets Layer Discussion List FAQ, by Shannon Appel SAppel@consensus.com with numerous contributions by others.

4.4) The record protocol sits underneath the other protocols, right?... (SSL)

... It appears that information can be sent only in blocks. Does
there have to be a one-to-one mapping between write() calls on the
client/server and SSL records? Is there some other blocking
taking place when user data is being sent?

The record layer takes a data stream from the higher layers and
fragments it into records. If the write is longer than 2^14 bytes
(with headers), the record layer will generate multiple records.
Multiple writes can be condensed into a single record.

 

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