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Merge shared code in hashing.

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This commit is contained in:
Brad Nelson
2022-06-03 12:07:53 -07:00
parent 56d83374b1
commit 577311c276
3 changed files with 25 additions and 39 deletions
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25
lib/hashing/hashing.fs
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@ -14,4 +14,29 @@
internals vocabulary hashing hashing definitions
0 VALUE h0 0 VALUE h1 0 VALUE h2 0 VALUE h3
0 VALUE h4 0 VALUE h5 0 VALUE h6 0 VALUE h7
0 VALUE a 0 VALUE b 0 VALUE c 0 VALUE d
0 VALUE e 0 VALUE f 0 VALUE g 0 VALUE h
0 VALUE temp1 0 VALUE temp2
CREATE w 80 4* ALLOT
: w@ ( n -- n ) 4* w + UL@ ;
: w! ( n n -- ) 4* w + L! ;
: 32-bit ( n -- n ) $ffffffff AND ;
: L+ ( n n -- n ) + 32-bit ;
: L, ( n -- ) HERE L! 4 ALLOT ;
: <<< ( n n -- n ) 2DUP LSHIFT -ROT 32 SWAP - RSHIFT OR 32-bit ;
: >>> ( n n -- n ) 2DUP RSHIFT -ROT 32 SWAP - LSHIFT OR 32-bit ;
VARIABLE ends
: <-> ( n - n ) ends ! 0 4 0 DO 8 LSHIFT ends I + C@ OR LOOP ;
: <->* ( a n -- ) 0 ?DO DUP UL@ <-> OVER L! 4 + LOOP DROP ;
: >dig ( a n -- a )
BASE @ >R HEX <# # # # # # # # # #> R> BASE !
ROT 2DUP + >R SWAP CMOVE R> ;
only forth definitions

16
lib/hashing/sha1.fs
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@ -16,22 +16,6 @@ needs hashing.fs
internals hashing definitions
0 VALUE h0 0 VALUE h1 0 VALUE h2 0 VALUE h3 0 VALUE h4
0 VALUE a 0 VALUE b 0 VALUE c 0 VALUE d 0 VALUE e
CREATE w 80 4* ALLOT
: w@ ( n -- n ) 4* w + UL@ ;
: w! ( n n -- ) 4* w + L! ;
: 32-bit ( n -- n ) $ffffffff AND ;
: L+ ( n n -- n ) + 32-bit ;
: <<< ( n n -- n ) 2DUP LSHIFT -ROT 32 SWAP - RSHIFT OR 32-bit ;
VARIABLE ends
: <-> ( n - n ) ends ! 0 4 0 DO 8 LSHIFT ends I + C@ OR LOOP ;
: <->* ( a n -- ) 0 ?DO DUP UL@ <-> OVER L! 4 + LOOP DROP ;
: init $67452301 TO h0 $EFCDAB89 TO h1
$98BADCFE TO h2 $10325476 TO h3 $C3D2E1F0 TO h4 ;

23
lib/hashing/sha256.fs
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@ -16,26 +16,6 @@ needs hashing.fs
internals hashing definitions
0 VALUE h0 0 VALUE h1 0 VALUE h2 0 VALUE h3
0 VALUE h4 0 VALUE h5 0 VALUE h6 0 VALUE h7
0 VALUE a 0 VALUE b 0 VALUE c 0 VALUE d
0 VALUE e 0 VALUE f 0 VALUE g 0 VALUE h
0 VALUE temp1 0 VALUE temp2
CREATE w 64 4* ALLOT
: w@ ( n -- n ) 4* w + UL@ ;
: w! ( n n -- ) 4* w + L! ;
: L, ( n -- ) HERE L! 4 ALLOT ;
: 32-bit ( n -- n ) $ffffffff AND ;
: L+ ( n n -- n ) + 32-bit ;
: >>> ( n n -- n ) 2DUP RSHIFT -ROT 32 SWAP - LSHIFT OR 32-bit ;
VARIABLE ends
: <-> ( n - n ) ends ! 0 4 0 DO 8 LSHIFT ends I + C@ OR LOOP ;
: <->* ( a n -- ) 0 ?DO DUP UL@ <-> OVER L! 4 + LOOP DROP ;
CREATE k HEX
428a2f98 L, 71374491 L, b5c0fbcf L, e9b5dba5 L, 3956c25b L, 59f111f1 L, 923f82a4 L, ab1c5ed5 L,
d807aa98 L, 12835b01 L, 243185be L, 550c7dc3 L, 72be5d74 L, 80deb1fe L, 9bdc06a7 L, c19bf174 L,
@ -87,9 +67,6 @@ DECIMAL
64 constant sha256-size
create sha256-hash sha256-size allot
: >dig ( a n -- a )
BASE @ >R HEX <# # # # # # # # # #> R> BASE !
ROT 2DUP + >R SWAP CMOVE R> ;
: format
sha256-hash h0 >dig h1 >dig h2 >dig h3 >dig
h4 >dig h5 >dig h6 >dig h7 >dig DROP ;