      http://localhost:8080/gate/rest/AmazonEC2?Action=DescribeInstances&SignatureVersion=2&SignatureMethod=HmacSHA256&Version=2009-11-30&Timestamp=2010-01-07T15%3A23%3A03Z&Expires=2010-11-07T15%3A23%3A03Z&AWSAccessKeyId=O4O0Niu98EvraLKH2o8SFNMQlXZvuE5ueMDR9CHU5WA2-qv4PEQkgMcrtrNs6eHYwpLySev4Hi03_YXiHz4gGg&Signature=lyHOvu2LNxjLHIAlQo3F0JNSDtuCtqHtAX786cCZDFI=



10:44:35,804  INFO EC2RestServlet:? - Request parameter Expires:2010-11-07T15:23
:03Z
10:44:36,197 ERROR RestAuth:? - Signature mismatch, [+fhKzW5k+O33zWoJ6dUmmo9ycZi
td62M0Lwicz2jT2s=] [lyHOvu2LNxjLHIAlQo3F0JNSDtuCtqHtAX786cCZDFI=] over [GET
localhost:8080
/gate/rest/AmazonEC2
AWSAccessKeyId=O4O0Niu98EvraLKH2o8SFNMQlXZvuE5ueMDR9CHU5WA2-qv4PEQkgMcrtrNs6eHYw
pLySev4Hi03_YXiHz4gGg&Action=DescribeInstances&Expires=2010-11-07T15%3A23%3A03Z&
SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2010-01-07T15%3A23%3A03Z
&Version=2009-11-30]


From usercredentials table:
-----------------------+
|  4 | O4O0Niu98EvraLKH2o8SFNMQlXZvuE5ueMDR9CHU5WA2-qv4PEQkgMcrtrNs6eHYwpLySev4H
i03_YXiHz4gGg | EmskZDLp5EmwPQDzHtA2CK3heW12keN-YTTrO39Iz2Qfk8fmtkFih95B7xexhAat
rlQ5ioNns4iT9qav3WzmrQ | CN=AWS Limited-Assurance CA, OU=AWS, O=Amazon.com, C=US
, serial=1033226874324 |
+----+--------------------------------------------------------------------------

EmskZDLp5EmwPQDzHtA2CK3heW12keN-YTTrO39Iz2Qfk8fmtkFih95B7xexhAatrlQ5ioNns4iT9qav3WzmrQ