To generate a key that is to be stored in file system use:
@example
$ tpmtool --generate-rsa --bits 2048 --outfile tpmkey.pem
@end example

To generate a key that is to be stored in TPM's flash use:
@example
$ tpmtool --generate-rsa --bits 2048 --register --user
@end example

To get the public key of a TPM key use:
@example
$ tpmtool --pubkey tpmkey:uuid=58ad734b-bde6-45c7-89d8-756a55ad1891;storage=user \
          --outfile pubkey.pem
@end example

or if the key is stored in the file system:
@example
$ tpmtool --pubkey tpmkey:file=tmpkey.pem --outfile pubkey.pem
@end example

To list all keys stored in TPM use:
@example
$ tpmtool --list
@end example