content: -- Copyright (C) 2013, 2014  Fraser Tweedale
  --
  -- Licensed under the Apache License, Version 2.0 (the "License");
  -- you may not use this file except in compliance with the License.
  -- You may obtain a copy of the License at
  --
  --      http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  
  {-# LANGUAGE OverloadedStrings #-}
  {-# LANGUAGE TemplateHaskell #-}
  
  {-|
  
  JSON Web Encryption algorithms.
  
  -}
  module Crypto.JOSE.JWA.JWE.Alg
    ( Alg(..)
    ) where
  
  import qualified Crypto.JOSE.TH
  
  
  -- | RFC 7518 §4.1.  "alg" (Algorithm) Header Parameter Values for JWE
  --
  -- This section is shuffled off into its own module to avoid
  -- circular import via Crypto.JOSE.JWK, which needs Alg.
  --
  $(Crypto.JOSE.TH.deriveJOSEType "Alg" [
    "RSA1_5"                -- RSAES-PKCS1-V1_5                       Required
    , "RSA-OAEP"            -- RSAES OAEP using default parameters    Optional
    , "RSA-OAEP-256"        -- RSAES OAEP using SHA-256 and MGF1
                            --   with SHA-256                         Optional
    , "A128KW"              -- AES Key Wrap                           Recommended
    , "A192KW"              -- AES Key Wrap                           Optional
    , "A256KW"              -- AES Key Wrap                           Recommended
    , "dir"                 -- direct use of symmetric key            Recommended
    , "ECDH-ES"             -- ECDH Ephemeral Static                  Recommended+
    , "ECDH-ES+A128KW"      --                                        Recommended
    , "ECDH-ES+A192KW"      --                                        Optional
    , "ECDH-ES+A256KW"      --                                        Recommended
    , "A128GCMKW"           -- AES in Galois/Counter Mode             Optional
    , "A192GCMKW"           -- AES in Galois/Counter Mode             Optional
    , "A256GCMKW"           -- AES in Galois/Counter Mode             Optional
    , "PBES2-HS256+A128KW"  -- PBES2 with HMAC SHA and AES Key Wrap   Optional
    , "PBES2-HS384+A192KW"  -- PBES2 with HMAC SHA and AES Key Wrap   Optional
    , "PBES2-HS512+A256KW"  -- PBES2 with HMAC SHA and AES Key Wrap   Optional
    ])
  