This PR aims at implementing compliance to RFC7519, as documented in #11 without breaking the public API. It creates a new struct `RegisteredClaims` and deprecates (but not removes) the `StandardClaims`. It introduces a new type `NumericDate`, which represents a JSON numeric date value as specified in the RFC. This allows us to handle float as well as int-based time fields in `aud`, `exp` and `nbf`. Additionally, it introduces the type `StringArray`, which is basically a wrapper around `[]string` to deal with the oddities of the JWT `aud` field.
* Fix issue with MapClaims VerifyAudience []string
There was an issue in MapClaims's VerifyAudiance where a []string (which
is valid in the spec) would return true (claim is found, or nil) when required
was not set.
It now checks interface types correctly and has tests written
Signed-off-by: Alistair Hey <alistair@heyal.co.uk>
* Keep aud validation constant time compare
Keep aud validation using constant time compare by not instantly
returning on a true comparison, keep comparing all options and store
result in a variable
Signed-off-by: Alistair Hey <alistair@heyal.co.uk>
Co-authored-by: Banse, Christian <christian.banse@aisec.fraunhofer.de>
Christian Banse