{-# OPTIONS_GHC -funbox-strict-fields #-}

-----------------------------------------------------------------------------
-- |
-- Module      :  Data.Digest.SHA2
-- Copyright   :  (c) Russell O'Connor 2006
-- License     :  BSD-style (see the file ReadMe.tex)
--
-- Implements SHA-256, SHA-384, SHA-512, and SHA-224 as defined in FIPS 180-2
-- <http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf>.
--
-----------------------------------------------------------------------------

module Data.Digest.SHA2
    ( -- * SHA-224
      sha224, sha224Ascii, Hash224
      -- * SHA-256
    , sha256, sha256Ascii, Hash256
      -- * SHA-384
    , sha384, sha384Ascii, Hash384
      -- * SHA-512
    , sha512, sha512Ascii, Hash512
      -- * Utilities
    , toOctets
    ) where

import Data.Word
import Data.Bits
import Data.List
import Numeric

ch :: Bits a => a -> a -> a -> a
ch :: forall a. Bits a => a -> a -> a -> a
ch a
x a
y a
z = (a
x forall a. Bits a => a -> a -> a
.&. a
y) forall a. Bits a => a -> a -> a
`xor` (forall a. Bits a => a -> a
complement a
x forall a. Bits a => a -> a -> a
.&. a
z)

maj :: Bits a => a -> a -> a -> a
maj :: forall a. Bits a => a -> a -> a -> a
maj a
x a
y a
z = (a
x forall a. Bits a => a -> a -> a
.&. a
y) forall a. Bits a => a -> a -> a
`xor` (a
x forall a. Bits a => a -> a -> a
.&. a
z) forall a. Bits a => a -> a -> a
`xor` (a
y forall a. Bits a => a -> a -> a
.&. a
z)

class (Num w, Bits w) => ShaData w where
  bigSigma0 :: w -> w
  bigSigma1 :: w -> w
  smallSigma0 :: w -> w
  smallSigma1 :: w -> w
  ks :: [w]

instance ShaData Word32 where
 bigSigma0 :: Word32 -> Word32
bigSigma0 Word32
x = forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
2 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
13 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
22
 bigSigma1 :: Word32 -> Word32
bigSigma1 Word32
x = forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
6 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
11 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
25
 smallSigma0 :: Word32 -> Word32
smallSigma0 Word32
x = forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
7 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
18 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
shiftR Word32
x Int
3
 smallSigma1 :: Word32 -> Word32
smallSigma1 Word32
x = forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
17 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word32
x Int
19 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
shiftR Word32
x Int
10
 ks :: [Word32]
ks =
   [Word32
0x428a2f98, Word32
0x71374491, Word32
0xb5c0fbcf, Word32
0xe9b5dba5, Word32
0x3956c25b, Word32
0x59f111f1, Word32
0x923f82a4, Word32
0xab1c5ed5
   ,Word32
0xd807aa98, Word32
0x12835b01, Word32
0x243185be, Word32
0x550c7dc3, Word32
0x72be5d74, Word32
0x80deb1fe, Word32
0x9bdc06a7, Word32
0xc19bf174
   ,Word32
0xe49b69c1, Word32
0xefbe4786, Word32
0x0fc19dc6, Word32
0x240ca1cc, Word32
0x2de92c6f, Word32
0x4a7484aa, Word32
0x5cb0a9dc, Word32
0x76f988da
   ,Word32
0x983e5152, Word32
0xa831c66d, Word32
0xb00327c8, Word32
0xbf597fc7, Word32
0xc6e00bf3, Word32
0xd5a79147, Word32
0x06ca6351, Word32
0x14292967
   ,Word32
0x27b70a85, Word32
0x2e1b2138, Word32
0x4d2c6dfc, Word32
0x53380d13, Word32
0x650a7354, Word32
0x766a0abb, Word32
0x81c2c92e, Word32
0x92722c85
   ,Word32
0xa2bfe8a1, Word32
0xa81a664b, Word32
0xc24b8b70, Word32
0xc76c51a3, Word32
0xd192e819, Word32
0xd6990624, Word32
0xf40e3585, Word32
0x106aa070
   ,Word32
0x19a4c116, Word32
0x1e376c08, Word32
0x2748774c, Word32
0x34b0bcb5, Word32
0x391c0cb3, Word32
0x4ed8aa4a, Word32
0x5b9cca4f, Word32
0x682e6ff3
   ,Word32
0x748f82ee, Word32
0x78a5636f, Word32
0x84c87814, Word32
0x8cc70208, Word32
0x90befffa, Word32
0xa4506ceb, Word32
0xbef9a3f7, Word32
0xc67178f2]

instance ShaData Word64 where
 bigSigma0 :: Word64 -> Word64
bigSigma0 Word64
x = forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
28 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
34 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
39
 bigSigma1 :: Word64 -> Word64
bigSigma1 Word64
x = forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
14 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
18 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
41
 smallSigma0 :: Word64 -> Word64
smallSigma0 Word64
x = forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
1 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
8 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
shiftR Word64
x Int
7
 smallSigma1 :: Word64 -> Word64
smallSigma1 Word64
x = forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
19 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
rotateR Word64
x Int
61 forall a. Bits a => a -> a -> a
`xor` forall a. Bits a => a -> Int -> a
shiftR Word64
x Int
6
 ks :: [Word64]
ks =
   [Word64
0x428a2f98d728ae22, Word64
0x7137449123ef65cd, Word64
0xb5c0fbcfec4d3b2f, Word64
0xe9b5dba58189dbbc
   ,Word64
0x3956c25bf348b538, Word64
0x59f111f1b605d019, Word64
0x923f82a4af194f9b, Word64
0xab1c5ed5da6d8118
   ,Word64
0xd807aa98a3030242, Word64
0x12835b0145706fbe, Word64
0x243185be4ee4b28c, Word64
0x550c7dc3d5ffb4e2
   ,Word64
0x72be5d74f27b896f, Word64
0x80deb1fe3b1696b1, Word64
0x9bdc06a725c71235, Word64
0xc19bf174cf692694
   ,Word64
0xe49b69c19ef14ad2, Word64
0xefbe4786384f25e3, Word64
0x0fc19dc68b8cd5b5, Word64
0x240ca1cc77ac9c65
   ,Word64
0x2de92c6f592b0275, Word64
0x4a7484aa6ea6e483, Word64
0x5cb0a9dcbd41fbd4, Word64
0x76f988da831153b5
   ,Word64
0x983e5152ee66dfab, Word64
0xa831c66d2db43210, Word64
0xb00327c898fb213f, Word64
0xbf597fc7beef0ee4
   ,Word64
0xc6e00bf33da88fc2, Word64
0xd5a79147930aa725, Word64
0x06ca6351e003826f, Word64
0x142929670a0e6e70
   ,Word64
0x27b70a8546d22ffc, Word64
0x2e1b21385c26c926, Word64
0x4d2c6dfc5ac42aed, Word64
0x53380d139d95b3df
   ,Word64
0x650a73548baf63de, Word64
0x766a0abb3c77b2a8, Word64
0x81c2c92e47edaee6, Word64
0x92722c851482353b
   ,Word64
0xa2bfe8a14cf10364, Word64
0xa81a664bbc423001, Word64
0xc24b8b70d0f89791, Word64
0xc76c51a30654be30
   ,Word64
0xd192e819d6ef5218, Word64
0xd69906245565a910, Word64
0xf40e35855771202a, Word64
0x106aa07032bbd1b8
   ,Word64
0x19a4c116b8d2d0c8, Word64
0x1e376c085141ab53, Word64
0x2748774cdf8eeb99, Word64
0x34b0bcb5e19b48a8
   ,Word64
0x391c0cb3c5c95a63, Word64
0x4ed8aa4ae3418acb, Word64
0x5b9cca4f7763e373, Word64
0x682e6ff3d6b2b8a3
   ,Word64
0x748f82ee5defb2fc, Word64
0x78a5636f43172f60, Word64
0x84c87814a1f0ab72, Word64
0x8cc702081a6439ec
   ,Word64
0x90befffa23631e28, Word64
0xa4506cebde82bde9, Word64
0xbef9a3f7b2c67915, Word64
0xc67178f2e372532b
   ,Word64
0xca273eceea26619c, Word64
0xd186b8c721c0c207, Word64
0xeada7dd6cde0eb1e, Word64
0xf57d4f7fee6ed178
   ,Word64
0x06f067aa72176fba, Word64
0x0a637dc5a2c898a6, Word64
0x113f9804bef90dae, Word64
0x1b710b35131c471b
   ,Word64
0x28db77f523047d84, Word64
0x32caab7b40c72493, Word64
0x3c9ebe0a15c9bebc, Word64
0x431d67c49c100d4c
   ,Word64
0x4cc5d4becb3e42b6, Word64
0x597f299cfc657e2a, Word64
0x5fcb6fab3ad6faec, Word64
0x6c44198c4a475817]

blockSize :: Int
blockSize = Int
16

-----------------------------------------------------------------------------
-- | 'padding' currently requires that the 'bitSize' of @a@ divide the 'bitSize'
-- of @w@
-----------------------------------------------------------------------------
padding :: (ShaData w, Bits a, Integral a) => [a] -> [[w]]
padding :: forall w a. (ShaData w, Bits a, Integral a) => [a] -> [[w]]
padding [a]
x = forall b a. (b -> Maybe (a, b)) -> b -> [a]
unfoldr forall {a}. [a] -> Maybe ([a], [a])
block forall a b. (a -> b) -> a -> b
$ forall {a} {a} {t}.
(Integral a, Integral a, Bits a, Num t, Bits a, Bits t) =>
[a] -> t -> Int -> a -> [t]
paddingHelper [a]
x w
0 (Int
0::Int) (Integer
0::Integer)
 where
  block :: [a] -> Maybe ([a], [a])
block [] = forall a. Maybe a
Nothing
  block [a]
x = forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ forall a. Int -> [a] -> ([a], [a])
splitAt Int
blockSize [a]
x
  paddingHelper :: [a] -> t -> Int -> a -> [t]
paddingHelper [a]
x t
o Int
on a
n | Int
on forall a. Eq a => a -> a -> Bool
== (forall a. Bits a => a -> Int
bitSize t
o) = t
oforall a. a -> [a] -> [a]
:[a] -> t -> Int -> a -> [t]
paddingHelper [a]
x t
0 Int
0 a
n
  paddingHelper (a
x:[a]
xs) t
o Int
on a
n | Int
on forall a. Ord a => a -> a -> Bool
< (forall a. Bits a => a -> Int
bitSize t
o) =
    [a] -> t -> Int -> a -> [t]
paddingHelper [a]
xs ((forall a. Bits a => a -> Int -> a
shiftL t
o Int
bs) forall a. Bits a => a -> a -> a
.|. (forall a b. (Integral a, Num b) => a -> b
fromIntegral a
x)) (Int
onforall a. Num a => a -> a -> a
+Int
bs) forall a b. (a -> b) -> a -> b
$! (a
nforall a. Num a => a -> a -> a
+forall a b. (Integral a, Num b) => a -> b
fromIntegral Int
bs)
   where
    bs :: Int
bs = forall a. Bits a => a -> Int
bitSize a
x
  paddingHelper [] t
o Int
on a
n = (forall a. Bits a => a -> Int -> a
shiftL (forall a. Bits a => a -> Int -> a
shiftL t
o Int
1 forall a. Bits a => a -> a -> a
.|. t
1) (Int
bsoforall a. Num a => a -> a -> a
-Int
onforall a. Num a => a -> a -> a
-Int
1))forall a. a -> [a] -> [a]
:
                            (forall {a}. (Bits a, Num a) => Int -> [a] -> [a]
zeros ((-(forall a b. (Integral a, Num b) => a -> b
fromIntegral a
nforall a. Num a => a -> a -> a
-Int
onforall a. Num a => a -> a -> a
+Int
3forall a. Num a => a -> a -> a
*Int
bso)) forall a. Integral a => a -> a -> a
`mod` (Int
blockSizeforall a. Num a => a -> a -> a
*Int
bso)))
                            [forall a b. (Integral a, Num b) => a -> b
fromIntegral (forall a. Bits a => a -> Int -> a
shiftR a
n Int
bso), forall a b. (Integral a, Num b) => a -> b
fromIntegral a
n]
   where
    bso :: Int
bso = forall a. Bits a => a -> Int
bitSize t
o
    zeros :: Int -> [a] -> [a]
zeros Int
0 = forall a. a -> a
id
    zeros Int
n | Int
0 forall a. Ord a => a -> a -> Bool
< Int
n = let z :: a
z=a
0 in (a
zforall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Int -> [a] -> [a]
zeros (Int
nforall a. Num a => a -> a -> a
-forall a. Bits a => a -> Int
bitSize a
z))

data Hash8 w = Hash8 !w !w !w !w !w !w !w !w deriving (Hash8 w -> Hash8 w -> Bool
forall w. Eq w => Hash8 w -> Hash8 w -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: Hash8 w -> Hash8 w -> Bool
$c/= :: forall w. Eq w => Hash8 w -> Hash8 w -> Bool
== :: Hash8 w -> Hash8 w -> Bool
$c== :: forall w. Eq w => Hash8 w -> Hash8 w -> Bool
Eq, Hash8 w -> Hash8 w -> Bool
Hash8 w -> Hash8 w -> Ordering
forall a.
Eq a
-> (a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
forall {w}. Ord w => Eq (Hash8 w)
forall w. Ord w => Hash8 w -> Hash8 w -> Bool
forall w. Ord w => Hash8 w -> Hash8 w -> Ordering
forall w. Ord w => Hash8 w -> Hash8 w -> Hash8 w
min :: Hash8 w -> Hash8 w -> Hash8 w
$cmin :: forall w. Ord w => Hash8 w -> Hash8 w -> Hash8 w
max :: Hash8 w -> Hash8 w -> Hash8 w
$cmax :: forall w. Ord w => Hash8 w -> Hash8 w -> Hash8 w
>= :: Hash8 w -> Hash8 w -> Bool
$c>= :: forall w. Ord w => Hash8 w -> Hash8 w -> Bool
> :: Hash8 w -> Hash8 w -> Bool
$c> :: forall w. Ord w => Hash8 w -> Hash8 w -> Bool
<= :: Hash8 w -> Hash8 w -> Bool
$c<= :: forall w. Ord w => Hash8 w -> Hash8 w -> Bool
< :: Hash8 w -> Hash8 w -> Bool
$c< :: forall w. Ord w => Hash8 w -> Hash8 w -> Bool
compare :: Hash8 w -> Hash8 w -> Ordering
$ccompare :: forall w. Ord w => Hash8 w -> Hash8 w -> Ordering
Ord)

type Hash256 = Hash8 Word32
type Hash512 = Hash8 Word64

data Hash384 = Hash384 !Word64 !Word64 !Word64 !Word64 !Word64 !Word64 deriving (Hash384 -> Hash384 -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: Hash384 -> Hash384 -> Bool
$c/= :: Hash384 -> Hash384 -> Bool
== :: Hash384 -> Hash384 -> Bool
$c== :: Hash384 -> Hash384 -> Bool
Eq, Eq Hash384
Hash384 -> Hash384 -> Bool
Hash384 -> Hash384 -> Ordering
Hash384 -> Hash384 -> Hash384
forall a.
Eq a
-> (a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
min :: Hash384 -> Hash384 -> Hash384
$cmin :: Hash384 -> Hash384 -> Hash384
max :: Hash384 -> Hash384 -> Hash384
$cmax :: Hash384 -> Hash384 -> Hash384
>= :: Hash384 -> Hash384 -> Bool
$c>= :: Hash384 -> Hash384 -> Bool
> :: Hash384 -> Hash384 -> Bool
$c> :: Hash384 -> Hash384 -> Bool
<= :: Hash384 -> Hash384 -> Bool
$c<= :: Hash384 -> Hash384 -> Bool
< :: Hash384 -> Hash384 -> Bool
$c< :: Hash384 -> Hash384 -> Bool
compare :: Hash384 -> Hash384 -> Ordering
$ccompare :: Hash384 -> Hash384 -> Ordering
Ord)
data Hash224 = Hash224 !Word32 !Word32 !Word32 !Word32 !Word32 !Word32 !Word32 deriving (Hash224 -> Hash224 -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: Hash224 -> Hash224 -> Bool
$c/= :: Hash224 -> Hash224 -> Bool
== :: Hash224 -> Hash224 -> Bool
$c== :: Hash224 -> Hash224 -> Bool
Eq, Eq Hash224
Hash224 -> Hash224 -> Bool
Hash224 -> Hash224 -> Ordering
Hash224 -> Hash224 -> Hash224
forall a.
Eq a
-> (a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
min :: Hash224 -> Hash224 -> Hash224
$cmin :: Hash224 -> Hash224 -> Hash224
max :: Hash224 -> Hash224 -> Hash224
$cmax :: Hash224 -> Hash224 -> Hash224
>= :: Hash224 -> Hash224 -> Bool
$c>= :: Hash224 -> Hash224 -> Bool
> :: Hash224 -> Hash224 -> Bool
$c> :: Hash224 -> Hash224 -> Bool
<= :: Hash224 -> Hash224 -> Bool
$c<= :: Hash224 -> Hash224 -> Bool
< :: Hash224 -> Hash224 -> Bool
$c< :: Hash224 -> Hash224 -> Bool
compare :: Hash224 -> Hash224 -> Ordering
$ccompare :: Hash224 -> Hash224 -> Ordering
Ord)

instance (Integral a, Show a) => Show (Hash8 a) where
 showsPrec :: Int -> Hash8 a -> ShowS
showsPrec Int
_ (Hash8 a
a a
b a
c a
d a
e a
f a
g a
h) =
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
a) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
b) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
c) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
d) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
e) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
f) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
g) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex a
h)

instance Show Hash384 where
 showsPrec :: Int -> Hash384 -> ShowS
showsPrec Int
_ (Hash384 Word64
a Word64
b Word64
c Word64
d Word64
e Word64
f) =
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word64
a) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word64
b) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word64
c) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word64
d) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word64
e) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word64
f)

instance Show Hash224 where
 showsPrec :: Int -> Hash224 -> ShowS
showsPrec Int
_ (Hash224 Word32
a Word32
b Word32
c Word32
d Word32
e Word32
f Word32
g) =
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
a) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
b) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
c) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
d) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
e) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
f) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Char
' 'forall a. a -> [a] -> [a]
:) forall b c a. (b -> c) -> (a -> b) -> a -> c
.
  (forall a. (Integral a, Show a) => a -> ShowS
showHex Word32
g)

class (Eq h, Ord h, Show h) => Hash h where
  toOctets :: h -> [Word8]

bitsToOctets :: a -> [a]
bitsToOctets a
x = forall {a} {a}.
(Bits a, Integral a, Num a, Bits a) =>
Int -> a -> [a] -> [a]
helper (forall a. Bits a => a -> Int
bitSize a
x) a
x []
   where
    helper :: Int -> a -> [a] -> [a]
helper Int
s a
x [a]
r | Int
s forall a. Ord a => a -> a -> Bool
<= Int
0 = [a]
r
                 | Bool
otherwise = Int -> a -> [a] -> [a]
helper (Int
sforall a. Num a => a -> a -> a
-Int
bs) (forall a. Bits a => a -> Int -> a
shiftR a
x Int
bs) ((forall a b. (Integral a, Num b) => a -> b
fromIntegral a
x)forall a. a -> [a] -> [a]
:[a]
r)
     where
      bs :: Int
bs = forall a. Bits a => a -> Int
bitSize (forall a. [a] -> a
head [a]
r)

instance (Integral h, Bits h, Show h) => Hash (Hash8 h) where
  toOctets :: Hash8 h -> [Word8]
toOctets (Hash8 h
x0 h
x1 h
x2 h
x3 h
x4 h
x5 h
x6 h
x7) = forall {a} {a}. (Integral a, Bits a, Bits a, Num a) => a -> [a]
bitsToOctets forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< [h
x0, h
x1, h
x2, h
x3, h
x4, h
x5, h
x6, h
x7]

instance Hash Hash384 where
  toOctets :: Hash384 -> [Word8]
toOctets (Hash384 Word64
x0 Word64
x1 Word64
x2 Word64
x3 Word64
x4 Word64
x5) = forall {a} {a}. (Integral a, Bits a, Bits a, Num a) => a -> [a]
bitsToOctets forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< [Word64
x0, Word64
x1, Word64
x2, Word64
x3, Word64
x4, Word64
x5]

instance Hash Hash224 where
  toOctets :: Hash224 -> [Word8]
toOctets (Hash224 Word32
x0 Word32
x1 Word32
x2 Word32
x3 Word32
x4 Word32
x5 Word32
x6) = forall {a} {a}. (Integral a, Bits a, Bits a, Num a) => a -> [a]
bitsToOctets forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< [Word32
x0, Word32
x1, Word32
x2, Word32
x3, Word32
x4, Word32
x5, Word32
x6]

shaStep :: (ShaData w) => Hash8 w -> [w] -> Hash8 w
shaStep :: forall w. ShaData w => Hash8 w -> [w] -> Hash8 w
shaStep Hash8 w
h [w]
m = (forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' (forall a b c. (a -> b -> c) -> b -> a -> c
flip forall a. a -> a
id) Hash8 w
h (forall a b c. (a -> b -> c) -> [a] -> [b] -> [c]
zipWith forall {w}. ShaData w => w -> w -> Hash8 w -> Hash8 w
mkStep3 forall w. ShaData w => [w]
ks [w]
ws)) forall {w}. Num w => Hash8 w -> Hash8 w -> Hash8 w
`plus` Hash8 w
h
 where
  ws :: [w]
ws = [w]
mforall a. [a] -> [a] -> [a]
++forall a b c d e.
(a -> b -> c -> d -> e) -> [a] -> [b] -> [c] -> [d] -> [e]
zipWith4 forall {a}. ShaData a => a -> a -> a -> a -> a
smallSigma (forall a. Int -> [a] -> [a]
drop (Int
blockSizeforall a. Num a => a -> a -> a
-Int
2) [w]
ws) (forall a. Int -> [a] -> [a]
drop (Int
blockSizeforall a. Num a => a -> a -> a
-Int
7) [w]
ws)
                              (forall a. Int -> [a] -> [a]
drop (Int
blockSizeforall a. Num a => a -> a -> a
-Int
15) [w]
ws) (forall a. Int -> [a] -> [a]
drop (Int
blockSizeforall a. Num a => a -> a -> a
-Int
16) [w]
ws)
   where
    smallSigma :: a -> a -> a -> a -> a
smallSigma a
a a
b a
c a
d = forall w. ShaData w => w -> w
smallSigma1 a
a forall a. Num a => a -> a -> a
+ a
b forall a. Num a => a -> a -> a
+ forall w. ShaData w => w -> w
smallSigma0 a
c forall a. Num a => a -> a -> a
+ a
d
  mkStep3 :: w -> w -> Hash8 w -> Hash8 w
mkStep3 w
k w
w (Hash8 w
a w
b w
c w
d w
e w
f w
g w
h) = forall w. w -> w -> w -> w -> w -> w -> w -> w -> Hash8 w
Hash8 (w
t1forall a. Num a => a -> a -> a
+w
t2) w
a w
b w
c (w
dforall a. Num a => a -> a -> a
+w
t1) w
e w
f w
g
   where
    t1 :: w
t1 = w
h forall a. Num a => a -> a -> a
+ forall w. ShaData w => w -> w
bigSigma1 w
e forall a. Num a => a -> a -> a
+ forall a. Bits a => a -> a -> a -> a
ch w
e w
f w
g forall a. Num a => a -> a -> a
+ w
k forall a. Num a => a -> a -> a
+ w
w
    t2 :: w
t2 = forall w. ShaData w => w -> w
bigSigma0 w
a forall a. Num a => a -> a -> a
+ forall a. Bits a => a -> a -> a -> a
maj w
a w
b w
c
  (Hash8 w
x0 w
x1 w
x2 w
x3 w
x4 w
x5 w
x6 w
x7) plus :: Hash8 w -> Hash8 w -> Hash8 w
`plus` (Hash8 w
y0 w
y1 w
y2 w
y3 w
y4 w
y5 w
y6 w
y7) =
    forall w. w -> w -> w -> w -> w -> w -> w -> w -> Hash8 w
Hash8 (w
x0forall a. Num a => a -> a -> a
+w
y0) (w
x1forall a. Num a => a -> a -> a
+w
y1) (w
x2forall a. Num a => a -> a -> a
+w
y2) (w
x3forall a. Num a => a -> a -> a
+w
y3) (w
x4forall a. Num a => a -> a -> a
+w
y4) (w
x5forall a. Num a => a -> a -> a
+w
y5) (w
x6forall a. Num a => a -> a -> a
+w
y6) (w
x7forall a. Num a => a -> a -> a
+w
y7)

-----------------------------------------------------------------------------
-- | Due to the limitations of 'padding', 'sha' currently requires that the
-- bitSize of @a@ divide the 'bitSize' of @w@
-----------------------------------------------------------------------------
sha :: (ShaData w, Bits a, Integral a) => Hash8 w -> [a] -> Hash8 w
sha :: forall w a.
(ShaData w, Bits a, Integral a) =>
Hash8 w -> [a] -> Hash8 w
sha Hash8 w
h0 [a]
x = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall w. ShaData w => Hash8 w -> [w] -> Hash8 w
shaStep Hash8 w
h0 forall a b. (a -> b) -> a -> b
$ forall w a. (ShaData w, Bits a, Integral a) => [a] -> [[w]]
padding [a]
x

stringToOctets :: String -> [Word8]
stringToOctets :: String -> [Word8]
stringToOctets = forall a b. (a -> b) -> [a] -> [b]
map (forall a b. (Integral a, Num b) => a -> b
fromIntegral forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. Enum a => a -> Int
fromEnum)

-----------------------------------------------------------------------------
-- | 'sha256' currently requires that the 'bitSize' of @a@ divide 32
-----------------------------------------------------------------------------
sha256 :: (Bits a, Integral a) => [a] -> Hash256
sha256 :: forall a. (Bits a, Integral a) => [a] -> Hash256
sha256 = forall w a.
(ShaData w, Bits a, Integral a) =>
Hash8 w -> [a] -> Hash8 w
sha forall a b. (a -> b) -> a -> b
$
  forall w. w -> w -> w -> w -> w -> w -> w -> w -> Hash8 w
Hash8 Word32
0x6a09e667 Word32
0xbb67ae85 Word32
0x3c6ef372 Word32
0xa54ff53a Word32
0x510e527f Word32
0x9b05688c Word32
0x1f83d9ab Word32
0x5be0cd19

-----------------------------------------------------------------------------
-- | 'sha384' currently requires that the 'bitSize' of @a@ divide 64
-----------------------------------------------------------------------------
sha384 :: (Bits a, Integral a) => [a] -> Hash384
sha384 :: forall a. (Bits a, Integral a) => [a] -> Hash384
sha384 [a]
x = Word64 -> Word64 -> Word64 -> Word64 -> Word64 -> Word64 -> Hash384
Hash384 Word64
x0 Word64
x1 Word64
x2 Word64
x3 Word64
x4 Word64
x5
 where
  Hash8 Word64
x0 Word64
x1 Word64
x2 Word64
x3 Word64
x4 Word64
x5 Word64
x6 Word64
x7 = forall a b c. (a -> b -> c) -> b -> a -> c
flip forall w a.
(ShaData w, Bits a, Integral a) =>
Hash8 w -> [a] -> Hash8 w
sha [a]
x forall a b. (a -> b) -> a -> b
$
    forall w. w -> w -> w -> w -> w -> w -> w -> w -> Hash8 w
Hash8 Word64
0xcbbb9d5dc1059ed8 Word64
0x629a292a367cd507 Word64
0x9159015a3070dd17 Word64
0x152fecd8f70e5939
          Word64
0x67332667ffc00b31 Word64
0x8eb44a8768581511 Word64
0xdb0c2e0d64f98fa7 Word64
0x47b5481dbefa4fa4

-----------------------------------------------------------------------------
-- | 'sha384' currently requires that the 'bitSize' of @a@ divide 64
-----------------------------------------------------------------------------
sha512 :: (Bits a, Integral a) => [a] -> Hash512
sha512 :: forall a. (Bits a, Integral a) => [a] -> Hash8 Word64
sha512 = forall w a.
(ShaData w, Bits a, Integral a) =>
Hash8 w -> [a] -> Hash8 w
sha forall a b. (a -> b) -> a -> b
$
  forall w. w -> w -> w -> w -> w -> w -> w -> w -> Hash8 w
Hash8 Word64
0x6a09e667f3bcc908 Word64
0xbb67ae8584caa73b Word64
0x3c6ef372fe94f82b Word64
0xa54ff53a5f1d36f1
        Word64
0x510e527fade682d1 Word64
0x9b05688c2b3e6c1f Word64
0x1f83d9abfb41bd6b Word64
0x5be0cd19137e2179

-----------------------------------------------------------------------------
-- | 'sha224' currently requires that the 'bitSize' of @a@ divide 32
-----------------------------------------------------------------------------
sha224 :: (Bits a, Integral a) => [a] -> Hash224
sha224 :: forall a. (Bits a, Integral a) => [a] -> Hash224
sha224 [a]
x = Word32
-> Word32
-> Word32
-> Word32
-> Word32
-> Word32
-> Word32
-> Hash224
Hash224 Word32
x0 Word32
x1 Word32
x2 Word32
x3 Word32
x4 Word32
x5 Word32
x6
 where
  Hash8 Word32
x0 Word32
x1 Word32
x2 Word32
x3 Word32
x4 Word32
x5 Word32
x6 Word32
x7 = forall a b c. (a -> b -> c) -> b -> a -> c
flip forall w a.
(ShaData w, Bits a, Integral a) =>
Hash8 w -> [a] -> Hash8 w
sha [a]
x forall a b. (a -> b) -> a -> b
$
    forall w. w -> w -> w -> w -> w -> w -> w -> w -> Hash8 w
Hash8 Word32
0xc1059ed8 Word32
0x367cd507 Word32
0x3070dd17 Word32
0xf70e5939 Word32
0xffc00b31 Word32
0x68581511 Word32
0x64f98fa7 Word32
0xbefa4fa4

-----------------------------------------------------------------------------
-- | 'sha256Ascii' assumes that all characters of the strings are
-- ISO-latin-1 characters.  ie. each characters fits in one octet.
-----------------------------------------------------------------------------
sha256Ascii :: String -> Hash256
sha256Ascii :: String -> Hash256
sha256Ascii = forall a. (Bits a, Integral a) => [a] -> Hash256
sha256 forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> [Word8]
stringToOctets

-----------------------------------------------------------------------------
-- | 'sha384Ascii' assumes that all characters of the strings are
-- ISO-latin-1 characters.  ie. each characters fits in one octet.
-----------------------------------------------------------------------------
sha384Ascii :: String -> Hash384
sha384Ascii :: String -> Hash384
sha384Ascii = forall a. (Bits a, Integral a) => [a] -> Hash384
sha384 forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> [Word8]
stringToOctets

-----------------------------------------------------------------------------
-- | 'sha512Ascii' assumes that all characters of the strings are
-- ISO-latin-1 characters.  ie. each characters fits in one octet.
-----------------------------------------------------------------------------
sha512Ascii :: String -> Hash512
sha512Ascii :: String -> Hash8 Word64
sha512Ascii = forall a. (Bits a, Integral a) => [a] -> Hash8 Word64
sha512 forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> [Word8]
stringToOctets

-----------------------------------------------------------------------------
-- | 'sha224Ascii' assumes that all characters of the strings are
-- ISO-latin-1 characters.  ie. each characters fits in one octet.
-----------------------------------------------------------------------------
sha224Ascii :: String -> Hash224
sha224Ascii :: String -> Hash224
sha224Ascii = forall a. (Bits a, Integral a) => [a] -> Hash224
sha224 forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> [Word8]
stringToOctets