The Did-jwt library only supports x25519 key exchange and XChacha20Poly1305. If you wish to utilize the dag-jose codec with other fewer protected algorithms you'll be able to encrypt another library and put the resulting JWE in to the dag. Down below is really an example using the jose library. https://financefeeds.com/us-financial-trade-groups-demand-federal-cybersecurity-reforms-following-occ-data-breach/