[baskaraninfo]

Shall we use the same key for multiple applications developed by us? Or does we need to get key for each application that we are going to deploy on BB devices?

Thanks

[baskaraninfo]

You can use it on multiple applications and deploy it on multiple of devices.

It is restricted to only one machine, i mean one signing key can be installed on one machine.

Refer:
BlackBerry Support Community Forums - Re: Need clarification on BlackBerry Code Signing Keys usage? - Java Development - BlackBerry Support Community Forums

[hrbuckley]

Keys may be uses to sign multiple applications for multiple devices. The keys once installed on one machine are easily ported to another.

[baskaraninfo]

Thanks hrbuckley

The keys once installed on one machine are easily ported to another.

Can you little elaborate on the above quote? How can we able to port the key installed in one machine to another?

[WonderfulRemote]

You just need to copy over sigtool.csk, sigtool.set and sigtool.db across to the bin directory of your JDE on the other host.
I personally use eclipse, so I copy these sigtool files into the relevant plugin directory eg:
\eclipse\plugins\net.rim.eide.componentpack4.6.0_4 .6.0.16\components\bin

[baskaraninfo]

Thanks WonderfulRemote