Folder Structure

The workspace contains two folders by default, where:

• src: the folder to maintain sources
• lib: the folder to maintain dependencies

Input

HTTP message in taken as input in JSON format, JSON structure is

{
"service": "ec2",
"region": "us-east-1",
"key": "23478207027842073230762374023",
"endpoint": "https://ec2.amazonaws.com",
"requestMethod": "GET",
"algorithm": "AWS4-HMAC-SHA256",
"headers": {
"Content-Type": "application/json",
"x-amz-Date": "Mon, 12 Nov 2007 10:49:58 GMT"
},
"body": null
}

Driver Code

Signature sn = new Signature();
sn.getSignature();

This driver code is written in APP.java, one can check it as a reference

Output

Output is the signature as shown below:
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Dependencies

• shiro-core.jar
• org.json.jar
• json-canonicalizer.jar