--
-- HMAC-MD5
--
SELECT hmac(
'Hi There',
'\x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b'::bytea,
'md5');
                hmac                
------------------------------------
 \x9294727a3638bb1c13f48ef8158bfc9d
(1 row)

-- 2
SELECT hmac(
'Jefe',
'what do ya want for nothing?',
'md5');
                hmac                
------------------------------------
 \x813aead7c4a34bff01a16d61368e7c13
(1 row)

-- 3
SELECT hmac(
'\xdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd'::bytea,
'\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'::bytea,
'md5');
                hmac                
------------------------------------
 \x56be34521d144c88dbb8c733f0e8b3f6
(1 row)

-- 4
SELECT hmac(
'\xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd'::bytea,
'\x0102030405060708090a0b0c0d0e0f10111213141516171819'::bytea,
'md5');
                hmac                
------------------------------------
 \x697eaf0aca3a3aea3a75164746ffaa79
(1 row)

-- 5
SELECT hmac(
'Test With Truncation',
'\x0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c'::bytea,
'md5');
                hmac                
------------------------------------
 \x56461ef2342edc00f9bab995690efd4c
(1 row)

-- 6
SELECT hmac(
'Test Using Larger Than Block-Size Key - Hash Key First',
'\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'::bytea,
'md5');
                hmac                
------------------------------------
 \x6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd
(1 row)

-- 7
SELECT hmac(
'Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data',
'\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'::bytea,
'md5');
                hmac                
------------------------------------
 \x6f630fad67cda0ee1fb1f562db3aa53e
(1 row)