SSL works by allowing the client and server to send each other encrypted data that only they can decrypt. SSL negotiates the terms of the encryption in a sequence of events known as the SSL handshake. The drivers support the SSL v2, SSL v3, and TLS v1 protocols using OpenSSL cipher suites, and negotiate the highest SSL/TLS protocol available during the handshake. The result of this negotiation determines the encryption cipher suite to be used for the SSL session.The encryption cipher suite defines the type of encryption that is used for any data exchanged through an SSL connection. Some cipher suites are very secure and, therefore, require more time and resources to encrypt and decrypt data, while others provide less security, but are also less resource intensive. Refer to "SSL Encryption Cipher Suites" in the DataDirect Connect Series for ODBC Reference for a list of the encryption cipher suites supported by the drivers.
• SSL server authentication requires the server to authenticate itself to the client.
• SSL client authentication is optional and requires the client to authenticate itself to the server after the server has authenticated itself to the client. Not all databases support SSL client authentication.
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