Student test tool for HMAC_SHA1 signed message (CIS1290 Assignment 8, Question 9)

Many APIs (Google, Twitter, Amazon Web Services) require messages to be signed with a secret key, thereby generating a HMAC (Hashing Message Authentication Code) to accompany the message. The secret key is known to both parties, but kept secret to everyone else and NOT sent with the message (symmetric key). This approach uses a hashing algorithm and the secret key to generate a signature of the message that confirms the authenticity, integrity, and authorization of the message and message-sender.

Objective: Write a short message (one sentence of text) and sign it using a shared secret key to generate a HMAC_SHA1 signature.

Use this tool to test the results of your program, by entering your message and its signature.

Student's Message and signature (exact syntax like this, no spaces on either side of the semicolon, no italics required)

message=yourmessage;signature=yoursignature

Make sure you replace this with your message string.

Key (from assignment directions):