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Using 'cond' instead of the hashtable with stored quotations. 

string>sha1 should compile once 'cond' compiles.
cvs
Doug Coleman 2005-08-30 17:54:54 +00:00
parent cc90da3690
commit 55ce64a477
1 changed files with 21 additions and 8 deletions
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contrib/crypto/sha1.factor
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@ -1,6 +1,6 @@
IN: crypto IN: crypto
USING: kernel io strings sequences namespaces math prettyprint USING: kernel io strings sequences namespaces math prettyprint
unparser test parser lists vectors hashtables ; unparser test parser lists vectors hashtables kernel-internals ;
! Implemented according to RFC 3174. ! Implemented according to RFC 3174.
@ -55,15 +55,28 @@ SYMBOL: f-table
! f(t;B,C,D) = (B AND C) OR (B AND D) OR (C AND D) (40 <= t <= 59) ! f(t;B,C,D) = (B AND C) OR (B AND D) OR (C AND D) (40 <= t <= 59)
! f(t;B,C,D) = B XOR C XOR D (60 <= t <= 79) ! f(t;B,C,D) = B XOR C XOR D (60 <= t <= 79)
{{ ! JUMP-TABLE: f 4 ( maximum )
[[ 0 [ >r over bitnot r> bitand >r bitand r> bitor ] ]] ! {{
[[ 1 [ bitxor bitxor ] ]] ! [[ 0 [ >r over bitnot r> bitand >r bitand r> bitor ] ]]
[[ 2 [ 2dup bitand >r pick bitand >r bitand r> r> bitor bitor ] ]] ! [[ 1 [ bitxor bitxor ] ]]
[[ 3 [ bitxor bitxor ] ]] ! [[ 2 [ 2dup bitand >r pick bitand >r bitand r> r> bitor bitor ] ]]
}} f-table set ! [[ 3 [ bitxor bitxor ] ]]
! }} f-table set
! J: 0 f >r over bitnot r> bitand >r bitand r> bitor ;
! J: 1 f bitxor bitxor ;
! J: 2 f 2dup bitand >r pick bitand >r bitand r> r> bitor bitor ;
! J: 3 f bitxor bitxor ;
{
{ [ dup 0 = ] [ drop >r over bitnot r> bitand >r bitand r> bitor ] }
{ [ dup 1 = ] [ drop bitxor bitxor ] }
{ [ dup 2 = ] [ drop 2dup bitand >r pick bitand >r bitand r> r> bitor bitor ] }
{ [ dup 3 = ] [ drop bitxor bitxor ] }
} f-table set
: sha1-f ( B C D t -- f_tbcd ) : sha1-f ( B C D t -- f_tbcd )
20 /i f-table get hash call ; 20 /i f-table get cond ;
: make-w ( -- ) : make-w ( -- )
! compute w, steps a-b of RFC 3174, section 6.1 ! compute w, steps a-b of RFC 3174, section 6.1