Can you encrypt a JWT?
This information can be verified and trusted because it is digitally signed. JWTs can be signed using a secret (with the HMAC algorithm) or a public/private key pair using RSA or ECDSA. Although JWTs can be encrypted to also provide secrecy between parties, we will focus on signed tokens.
What encryption does JWT use?
RSA encryption
JSON Web Token (JWT) with RSA encryption. RSA is a commonly used algorithm for asymmetric (public key) encryption. To encrypt a JWT for a given recipient you need to know their public RSA key. Decryption happens with the private RSA key, which the recipient must keep secure at all times.
What’s the difference between a JWT and an encryption?
These are handled in their own specs as JSON Web Signature (JWS) and JSON Web Encryption (JWE). A signature allows a JWT to be validated against modifications. Encryption, on the other hand, makes sure the content of the JWT is only readable by certain parties.
What’s the difference between JWT and JSON Web Tokens?
JSON Web Tokens (= JWTs) are based on the RFC 7519 and all differences will be extensively described there. If you take a look at this, you will see, that they are much more than what you seem to have in mind. The signature is base64url encoded.
What’s the difference between A JWS and a JWE?
A signed JWT is known as a JWS (JSON Web Signature). In fact a JWT does not exist itself — either it has to be a JWS or a JWE (JSON Web Encryption). Its like an abstract class — the JWS and JWE are the concrete implementations.
How are JWTs used to share authentication information?
JWT are self sufficient tokens which are used to share authentication information between different systems. They solve the problem of relying on third parties for validating an authentication token as all the information required to validate the JWT is contained within the token itself.