CREATE OR REPLACE FUNCTION sha256_crypt(key text, salt text)
RETURNS text
AS 'MODULE_PATHNAME', 'pg_sha256_crypt'
LANGUAGE C STABLE STRICT;

CREATE OR REPLACE FUNCTION sha512_crypt(key text, salt text)
RETURNS text
AS 'MODULE_PATHNAME', 'pg_sha512_crypt'
LANGUAGE C STABLE STRICT;