         [ -10 shift ] tri
     ] [ bitxor ] reduce-outputs ; inline
 
-: process-M-256 ( n seq -- )
-    {
-        [ [ 16 - ] dip nth ]
-        [ [ 15 - ] dip nth s0-256 ]
-        [ [ 7 - ] dip nth ]
-        [ [ 2 - ] dip nth s1-256 w+ w+ w+ ]
-        [ ]
-    } 2cleave set-nth ; inline
-
-: prepare-message-schedule ( seq -- w-seq )
-    word-size get group [ be> ] map block-size get 0 pad-tail
-    16 64 [a,b) over '[ _ process-M-256 ] each ;
-
-: ch ( x y z -- x' )
-    [ bitxor bitand ] keep bitxor ;
-
-: maj ( x y z -- x' )
-    [ [ bitand ] [ bitor ] 2bi ] dip bitand bitor ;
-
 : S0-256 ( x -- x' )
     [
         [ -2 bitroll-32 ]

! See http://factorcode.org/license.txt for BSD license.
USING: kernel splitting grouping math sequences namespaces make
io.binary math.bitwise checksums checksums.common
sbufs strings combinators.smart math.ranges fry combinators ;
IN: checksums.sha2

<PRIVATE

SYMBOLS: vars K H process-M word-size block-size ;

CONSTANT: a 0
CONSTANT: b 1


M: sha-256 checksum-bytes
    drop [
        initial-H-256 H set
        4 word-size set
        64 block-size set
        byte-array>sha2

    ] with-scope ;
