--
-- HMAC-MD5
--
SELECT encode(hmac(
'Hi There',
decode('0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b', 'hex'),
'md5'), 'hex');
              encode              
----------------------------------
 9294727a3638bb1c13f48ef8158bfc9d
(1 row)

-- 2
SELECT encode(hmac(
'Jefe',
'what do ya want for nothing?',
'md5'), 'hex');
              encode              
----------------------------------
 813aead7c4a34bff01a16d61368e7c13
(1 row)

-- 3
SELECT encode(hmac(
decode('dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd', 'hex'),
decode('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', 'hex'),
'md5'), 'hex');
              encode              
----------------------------------
 56be34521d144c88dbb8c733f0e8b3f6
(1 row)

-- 4
SELECT encode(hmac(
decode('cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd', 'hex'),
decode('0102030405060708090a0b0c0d0e0f10111213141516171819', 'hex'),
'md5'), 'hex');
              encode              
----------------------------------
 697eaf0aca3a3aea3a75164746ffaa79
(1 row)

-- 5
SELECT encode(hmac(
'Test With Truncation',
decode('0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c', 'hex'),
'md5'), 'hex');
              encode              
----------------------------------
 56461ef2342edc00f9bab995690efd4c
(1 row)

-- 6
SELECT encode(hmac(
'Test Using Larger Than Block-Size Key - Hash Key First',
decode('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', 'hex'),
'md5'), 'hex');
              encode              
----------------------------------
 6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd
(1 row)

-- 7
SELECT encode(hmac(
'Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data',
decode('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', 'hex'),
'md5'), 'hex');
              encode              
----------------------------------
 6f630fad67cda0ee1fb1f562db3aa53e
(1 row)