Which plugins do I need to add on Jenkins to add private ssh key to access bitbucket?

[Neel Saraiya]

I am trying to add private ssh key on jenkins so I don't need to use my own credentials while adding bitbucket repository on jenkins. I have created ssh key using jenkins user and I have added it on Bitbucket but I am missing some plugins on jekins so ssh key will be supported to access Bitbucket. Please let me know which plugins I need?