When working with Message Authentication Codes (MACs), you often need to authenticate not just a single string, but multiple fields of data. For example, when creating an authenticated encryption mode by composing a cipher and a MAC (like AES-CBC and HMAC), you need to ensure the MAC covers the IV, associated data, and the ciphertext. […]| Neil Madden
Wikipedia’s definition of a digital signature is: A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the recipient. —Wikipedia They also have a handy diagram of the process […]| Neil Madden
I am famously not a fan of JSON Web Tokens (JWT). Like most cryptography and security experts familiar with JWT, I would much rather you use something else if you can. I even proposed a secure alte…| Semantically Secure