Password-based Authentication

Hello,

I was reading this documentation page:

http://www.postgresql.org/docs/9.3/static/auth-methods.html#AUTH-PASSWORD
http://www.postgresql.org/docs/devel/static/auth-methods.html#AUTH-PASSWORD

... and I noticed that the only password hashing option available in pgsql
for authentication purposes is md5.

Is there any way to use something more reliable (bcrypt, scrypt, pbkdf2, or
eventually any of the hashing schemes selected by the PHC
https://password-hashing.net )?

Thanks,
Scott