Blackberry BlackBerry - Manual (Page 105)

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To apply TLS to the entire connection from your
handheld to a web server, set the TLS Default field
to Handheld. Set the Algorithm, Server
Authentication, and Client Authentication fields.
In the Algorithm field, set the type of algorithm,
the encryption strength, and whether only Federal
Information Processing Standards (FIPS)-approved
key algorithms are supported.
In the Server Authentication field, set whether to
prompt about server security issues. If an item is
set to False, connections are prevented if a server
security issue occurs.
In the Client Authentication field, set whether to
prompt about client security issues. If an item is
set to False, connections are prevented if a client
security issue occurs.