1.Export a Secret Key (this is what your boss should have done for you)
gpg --export-secret-keys yourKeyName > privateKey.asc
2.Import Secret Key (import your privateKey)
gpg --import privateKey.asc
3.Not done yet, you still need to ultimately trust a key. You will need to make sure that you also ultimately trust a key.
gpg --edit-key yourKeyName
Enter trust, 5, y, and then quit
Source: https://medium.com/@GalarnykMichael/public-key-asymmetric-cryptography-using-gpg-5a8d914c9bca