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HMAC and MACs - The Inner Workings of JWTs

3 years ago blog.boot.dev

Summary: This is a summary of an article originally published by the source. Read the full original article here →

HMACs and MACs are authentication codes and are often the backbone of JWT authentication systems. A Message Authentication Code (MAC) is a string of bits that depends on a secret key and is sent with a message to prove the message wasn’t tampered with.