In cryptography, an HMAC (sometimes expanded as either keyed-hash message authentication code or hash-based message authentication code) is a specific type of message authentication code (MAC) involving a cryptographic hash function and a secret cryptographic key. As with any MAC, it may be used to simultaneously verify both the data integrity and authenticity of a message.
HMAC can provide authentication using a shared secret instead of using digital signatures with asymmetric cryptography. It trades off the need for a complex public key infrastructure by delegating the key exchange to the communicating parties, who are responsible for establishing and using a trusted channel to agree on the key prior to communication.
- Pull down the repository.
- Run
make install. - Dasit
In the Paw Rest client:
- Go to the Headers tab.
- In the Header, Name column, enter the name for the signature check.
- In the Header Value right, click and select Extensions; a new Extensions submenu will appear.
- In the Extensions submenu, select HMAC Signed Payload Dynamic Value; the Extension Configuration popup will appear.
- In the Extension Configuration popup, enter your shared secret in the Secret field. This must match the secret of your target service; the dynamic value should now be calculated from the Body contents.
