Specifies the format of public/key pair. The following formats are
supported for import/export:
1) uuencoded_format - in this format both private and public key are in
uu-encoded format, and are seperated from one another by header and footer.
An example of the concateneation of all fragments in this format is:
-----BEGIN ENCRYPTED RSA PRIVATE KEY-----
tDaNkZZoCxXfkLLsLDlZ6T9H8U4Gz637eRV7BYBpapkidAxY1UG0/qgfKLPkbId4wzht6ArV9bE4fMtX
wSMOxL3q31pOmUdVhjbWYcgZQBDy1DjFSbuIEdP85c96B9bBE2nPv90mSvb/6j8R2NItT/KJeiYMtLtI
N3m6/zESKJGIrX0jP1RFDjVZSS5chSAFgB0egsLZEyOQn7jAqpX/x/easD2J6F/OjPXlJ9Hff2tMb3NU
QYyBoWH2J9IxhWB6Vo66R9Y04JGR18uL/rV2sMCtpg5ppkVTEpNTp9qE1yXocR2NmzUfNFap+GJ4IHj8
CzkVfmJM/kEWaJsYgHbAgLyRg4QVyelfobv1B71aQ+u1z9KGu/QajkWdR04OQfsGOL1CvU2LGYDcRjfH
jv+jl/UkDRRjoD9kt2WvouT+OL6esvKl0OJBqWbGNXg9TWv/VLtJIwgUno+MLaJuOM4Fh44+wpnqUXwQ
TFtBFc8pzt5BoOwbv9gXpicTkq4/+GhwXWXxSVFebKhnHAvKSLT+Ba7K7ZeR8EIIxbXdDNFOiS45R2KI
jxxXLXK44u6KGl5MygCKXUOFlJ+Zhgrq6ZH17z/RVJQ2CWqb5Ekn9GY3kH9QZ3mb4MDPfriWi2lHGXHY
JmJd4SLQhpBdnOS5tu84QmyU3dNbAdzghDsR+dEY/6g7Cn0kcVkeHNZ0H+mCZik5f6XBD8eplkk43bdR
FrkwTeAjwurGcKwdiKkR4DlfSq3DKssVBucTqUpqsKqPXLwTIL44rWKhEPXgGPB2XDG0VLvIRKkAgEGI
LNTwOm091Ro=
-----END RSA PRIVATE KEY-----
-----BEGIN RSA PUBLIC KEY-----
MIGHAoGBAOeIC9gRg3YaEGGMp3C00qNwLINAEDZV/J4BWM5WnWwCWZyHXDs2XiEmFu0ZONAD4gcT2f2f
NNfCBPye39VVuOkKQuSV0MLLX5800LZ4y1BNcPzPZHpnGaCzl7iAjhfj9MolzAh5VRjeiYt0t1um4dm+
q9A4BtfpJqDYxCW9uxd/AgEj
-----END RSA PUBLIC KEY-----