(mysql.info.gz) Secure basics
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5.6.7.1 Basic SSL Concepts
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To understand how MySQL uses SSL, it's necessary to explain some basic
SSL and X509 concepts. People who are familiar with them can skip this
part.
By default, MySQL uses unencrypted connections between the client and
the server. This means that someone with access to the network could
watch all your traffic and look at the data being sent or received.
They could even change the data while it is in transit between client
and server. To improve security a little, you can compress
client/server traffic by using the `--compress' option when invoking
client programs. However, this will not foil a determined attacker.
When you need to move information over a network in a secure fashion,
an unencrypted connection is unacceptable. Encryption is the way to
make any kind of data unreadable. In fact, today's practice requires
many additional security elements from encryption algorithms. They
should resist many kind of known attacks such as changing the order of
encrypted messages or replaying data twice.
SSL is a protocol that uses different encryption algorithms to ensure
that data received over a public network can be trusted. It has
mechanisms to detect any data change, loss, or replay. SSL also
incorporates algorithms that provide identity verification using the
X509 standard.
X509 makes it possible to identify someone on the Internet. It is most
commonly used in e-commerce applications. In basic terms, there should
be some company called a "Certificate Authority" (or CA) that assigns
electronic certificates to anyone who needs them. Certificates rely on
asymmetric encryption algorithms that have two encryption keys (a
public key and a secret key). A certificate owner can show the
certificate to another party as proof of identity. A certificate
consists of its owner's public key. Any data encrypted with this public
key can be decrypted only using the corresponding secret key, which is
held by the owner of the certificate.
If you need more information about SSL, X509, or encryption, use your
favorite Internet search engine to search for keywords in which you are
interested.
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(mysql.info.gz) Secure connections
(mysql.info.gz) Secure connections
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