GET
/

host:example.amazonaws.com
my-header1:value1
my-header2:"a b c"
x-amz-date:20150830T123600Z
x-amz-region-set:us-east-1

host;my-header1;my-header2;x-amz-date;x-amz-region-set
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855