101 lines
2.3 KiB
Haskell
101 lines
2.3 KiB
Haskell
module Network.TLS.Crypto
|
|
( HashType(..)
|
|
, HashCtx
|
|
|
|
-- * incremental interface with algorithm type wrapping for genericity
|
|
, initHash
|
|
, updateHash
|
|
, finalizeHash
|
|
|
|
-- * single pass lazy bytestring interface for each algorithm
|
|
, hashMD5
|
|
, hashSHA1
|
|
-- * incremental interface for each algorithm
|
|
, initMD5
|
|
, updateMD5
|
|
, finalizeMD5
|
|
, initSHA1
|
|
, updateSHA1
|
|
, finalizeSHA1
|
|
|
|
-- * RSA stuff
|
|
, PublicKey(..)
|
|
, PrivateKey(..)
|
|
, rsaEncrypt
|
|
, rsaDecrypt
|
|
) where
|
|
|
|
import qualified Data.CryptoHash.SHA1 as SHA1
|
|
import qualified Data.CryptoHash.MD5 as MD5
|
|
import qualified Data.ByteString as B
|
|
import Data.ByteString.Lazy (ByteString)
|
|
import Codec.Crypto.RSA (PublicKey(..), PrivateKey(..))
|
|
import qualified Codec.Crypto.RSA as RSA
|
|
import Control.Spoon
|
|
import System.Random
|
|
|
|
data HashCtx =
|
|
SHA1 !SHA1.Ctx
|
|
| MD5 !MD5.Ctx
|
|
|
|
instance Show HashCtx where
|
|
show (SHA1 _) = "sha1"
|
|
show (MD5 _) = "md5"
|
|
|
|
data HashType = HashTypeSHA1 | HashTypeMD5
|
|
|
|
{- MD5 -}
|
|
|
|
initMD5 :: MD5.Ctx
|
|
initMD5 = MD5.init
|
|
|
|
updateMD5 :: MD5.Ctx -> B.ByteString -> MD5.Ctx
|
|
updateMD5 = MD5.update
|
|
|
|
finalizeMD5 :: MD5.Ctx -> B.ByteString
|
|
finalizeMD5 = MD5.finalize
|
|
|
|
hashMD5 :: ByteString -> B.ByteString
|
|
hashMD5 = MD5.hashlazy
|
|
|
|
{- SHA1 -}
|
|
|
|
initSHA1 :: SHA1.Ctx
|
|
initSHA1 = SHA1.init
|
|
|
|
updateSHA1 :: SHA1.Ctx -> B.ByteString -> SHA1.Ctx
|
|
updateSHA1 = SHA1.update
|
|
|
|
finalizeSHA1 :: SHA1.Ctx -> B.ByteString
|
|
finalizeSHA1 = SHA1.finalize
|
|
|
|
hashSHA1 :: ByteString -> B.ByteString
|
|
hashSHA1 = SHA1.hashlazy
|
|
|
|
{- generic Hashing -}
|
|
|
|
initHash :: HashType -> HashCtx
|
|
initHash HashTypeSHA1 = SHA1 (initSHA1)
|
|
initHash HashTypeMD5 = MD5 (initMD5)
|
|
|
|
updateHash :: HashCtx -> B.ByteString -> HashCtx
|
|
updateHash (SHA1 ctx) = SHA1 . updateSHA1 ctx
|
|
updateHash (MD5 ctx) = MD5 . updateMD5 ctx
|
|
|
|
finalizeHash :: HashCtx -> B.ByteString
|
|
finalizeHash (SHA1 ctx) = finalizeSHA1 ctx
|
|
finalizeHash (MD5 ctx) = finalizeMD5 ctx
|
|
|
|
{- RSA reexport and maybification -}
|
|
|
|
{- on using spoon:
|
|
because we use rsa Encrypt/Decrypt in a pure context, catching the exception
|
|
when the key is not correctly set or the data isn't correct.
|
|
need to fix the RSA package to return "Either String X".
|
|
-}
|
|
|
|
rsaEncrypt :: RandomGen g => g -> PublicKey -> ByteString -> Maybe (ByteString, g)
|
|
rsaEncrypt g pk b = teaspoon (RSA.rsaes_pkcs1_v1_5_encrypt g pk b)
|
|
|
|
rsaDecrypt :: PrivateKey -> ByteString -> Maybe ByteString
|
|
rsaDecrypt pk b = teaspoon (RSA.rsaes_pkcs1_v1_5_decrypt pk b)
|