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Nettle
nettle
Commits
bbf51a3c
Commit
bbf51a3c
authored
Jun 20, 2011
by
Niels Möller
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Renamed arguments in sbox macros.
Rev: nettle/serpent-decrypt.c:1.2
parent
d9a172fd
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bbf51a3c
...
...
@@ -70,195 +70,195 @@
used after the substitution, and hence we could allow them to be
destroyed. Can this freedom be used to optimize the sboxes? */
#define SBOX0_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX0_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t05, t06, t08, t09, t10; \
type t12, t13, t14, t15, t17, t18, t01; \
t01 =
c
^
d
; \
t02 =
a
|
b
; \
t03 =
b
|
c
; \
t04 =
c
& t01; \
t01 =
x2
^
x3
; \
t02 =
x0
|
x1
; \
t03 =
x1
|
x2
; \
t04 =
x2
& t01; \
t05 = t02 ^ t01; \
t06 =
a
| t04; \
y
= ~ t05; \
t08 =
b
^
d
; \
t06 =
x0
| t04; \
y
2
= ~ t05; \
t08 =
x1
^
x3
; \
t09 = t03 & t08; \
t10 =
d
| y ; \
x
= t09 ^ t06; \
t12 =
a
| t05; \
t13 =
x
^ t12; \
t10 =
x3
| y
2
; \
y1
= t09 ^ t06; \
t12 =
x0
| t05; \
t13 =
y1
^ t12; \
t14 = t03 ^ t10; \
t15 =
a
^
c
; \
z
= t14 ^ t13; \
t15 =
x0
^
x2
; \
y3
= t14 ^ t13; \
t17 = t05 & t13; \
t18 = t14 | t17; \
w
= t15 ^ t18; \
y0
= t15 ^ t18; \
} while (0)
#define SBOX1_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX1_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t05, t06, t07, t08; \
type t09, t10, t11, t14, t15, t17, t01; \
t01 =
a
^
b
; \
t02 =
b
|
d
; \
t03 =
a
&
c
; \
t04 =
c
^ t02; \
t05 =
a
| t04; \
t01 =
x0
^
x1
; \
t02 =
x1
|
x3
; \
t03 =
x0
&
x2
; \
t04 =
x2
^ t02; \
t05 =
x0
| t04; \
t06 = t01 & t05; \
t07 =
d
| t03; \
t08 =
b
^ t06; \
t07 =
x3
| t03; \
t08 =
x1
^ t06; \
t09 = t07 ^ t06; \
t10 = t04 | t03; \
t11 =
d
& t08; \
y
= ~ t09; \
x
= t10 ^ t11; \
t14 =
a
| y ; \
t15 = t06 ^
x
; \
z
= t01 ^ t04; \
t17 =
c
^ t15; \
w
= t14 ^ t17; \
t11 =
x3
& t08; \
y
2
= ~ t09; \
y1
= t10 ^ t11; \
t14 =
x0
| y
2
; \
t15 = t06 ^
y1
; \
y3
= t01 ^ t04; \
t17 =
x2
^ t15; \
y0
= t14 ^ t17; \
} while (0)
#define SBOX2_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX2_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t06, t07, t08, t09; \
type t10, t11, t12, t15, t16, t17, t01; \
t01 =
a
^
d
; \
t02 =
c
^
d
; \
t03 =
a
&
c
; \
t04 =
b
| t02; \
w
= t01 ^ t04; \
t06 =
a
|
c
; \
t07 =
d
|
w
; \
t08 = ~
d
; \
t09 =
b
& t06; \
t01 =
x0
^
x3
; \
t02 =
x2
^
x3
; \
t03 =
x0
&
x2
; \
t04 =
x1
| t02; \
y0
= t01 ^ t04; \
t06 =
x0
|
x2
; \
t07 =
x3
|
y0
; \
t08 = ~
x3
; \
t09 =
x1
& t06; \
t10 = t08 | t03; \
t11 =
b
& t07; \
t11 =
x1
& t07; \
t12 = t06 & t02; \
z
= t09 ^ t10; \
x
= t12 ^ t11; \
t15 =
c
&
z
; \
t16 =
w
^
x
; \
y3
= t09 ^ t10; \
y1
= t12 ^ t11; \
t15 =
x2
&
y3
; \
t16 =
y0
^
y1
; \
t17 = t10 ^ t15; \
y
= t16 ^ t17; \
y
2
= t16 ^ t17; \
} while (0)
#define SBOX3_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX3_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t05, t06, t07, t09; \
type t11, t12, t13, t14, t16, t01; \
t01 =
c
|
d
; \
t02 =
a
|
d
; \
t03 =
c
^ t02; \
t04 =
b
^ t02; \
t05 =
a
^
d
; \
t01 =
x2
|
x3
; \
t02 =
x0
|
x3
; \
t03 =
x2
^ t02; \
t04 =
x1
^ t02; \
t05 =
x0
^
x3
; \
t06 = t04 & t03; \
t07 =
b
& t01; \
y
= t05 ^ t06; \
t09 =
a
^ t03; \
w
= t07 ^ t03; \
t11 =
w
| t05; \
t07 =
x1
& t01; \
y
2
= t05 ^ t06; \
t09 =
x0
^ t03; \
y0
= t07 ^ t03; \
t11 =
y0
| t05; \
t12 = t09 & t11; \
t13 =
a
& y ; \
t13 =
x0
& y
2
; \
t14 = t01 ^ t05; \
x
=
b
^ t12; \
t16 =
b
| t13; \
z
= t14 ^ t16; \
y1
=
x1
^ t12; \
t16 =
x1
| t13; \
y3
= t14 ^ t16; \
} while (0)
#define SBOX4_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX4_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t05, t06, t07, t09; \
type t10, t11, t12, t13, t15, t01; \
t01 =
b
|
d
; \
t02 =
c
|
d
; \
t03 =
a
& t01; \
t04 =
b
^ t02; \
t05 =
c
^
d
; \
t01 =
x1
|
x3
; \
t02 =
x2
|
x3
; \
t03 =
x0
& t01; \
t04 =
x1
^ t02; \
t05 =
x2
^
x3
; \
t06 = ~ t03; \
t07 =
a
& t04; \
x
= t05 ^ t07; \
t09 =
x
| t06; \
t10 =
a
^ t07; \
t07 =
x0
& t04; \
y1
= t05 ^ t07; \
t09 =
y1
| t06; \
t10 =
x0
^ t07; \
t11 = t01 ^ t09; \
t12 =
d
^ t04; \
t13 =
c
| t10; \
z
= t03 ^ t12; \
t15 =
a
^ t04; \
y
= t11 ^ t13; \
w
= t15 ^ t09; \
t12 =
x3
^ t04; \
t13 =
x2
| t10; \
y3
= t03 ^ t12; \
t15 =
x0
^ t04; \
y
2
= t11 ^ t13; \
y0
= t15 ^ t09; \
} while (0)
#define SBOX5_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX5_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t05, t07, t08, t09; \
type t10, t12, t13, t15, t16, t01; \
t01 =
a
&
d
; \
t02 =
c
^ t01; \
t03 =
a
^
d
; \
t04 =
b
& t02; \
t05 =
a
&
c
; \
w
= t03 ^ t04; \
t07 =
a
&
w
; \
t08 = t01 ^
w
; \
t09 =
b
| t05; \
t10 = ~
b
; \
x
= t08 ^ t09; \
t01 =
x0
&
x3
; \
t02 =
x2
^ t01; \
t03 =
x0
^
x3
; \
t04 =
x1
& t02; \
t05 =
x0
&
x2
; \
y0
= t03 ^ t04; \
t07 =
x0
&
y0
; \
t08 = t01 ^
y0
; \
t09 =
x1
| t05; \
t10 = ~
x1
; \
y1
= t08 ^ t09; \
t12 = t10 | t07; \
t13 =
w
|
x
; \
z
= t02 ^ t12; \
t13 =
y0
|
y1
; \
y3
= t02 ^ t12; \
t15 = t02 ^ t13; \
t16 =
b
^
d
; \
y
= t16 ^ t15; \
t16 =
x1
^
x3
; \
y
2
= t16 ^ t15; \
} while (0)
#define SBOX6_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX6_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t05, t06, t07, t08, t09; \
type t12, t13, t14, t15, t16, t17, t01; \
t01 =
a
^
c
; \
t02 = ~
c
; \
t03 =
b
& t01; \
t04 =
b
| t02; \
t05 =
d
| t03; \
t06 =
b
^
d
; \
t07 =
a
& t04; \
t08 =
a
| t02; \
t01 =
x0
^
x2
; \
t02 = ~
x2
; \
t03 =
x1
& t01; \
t04 =
x1
| t02; \
t05 =
x3
| t03; \
t06 =
x1
^
x3
; \
t07 =
x0
& t04; \
t08 =
x0
| t02; \
t09 = t07 ^ t05; \
x
= t06 ^ t08; \
w
= ~ t09; \
t12 =
b
&
w
; \
y1
= t06 ^ t08; \
y0
= ~ t09; \
t12 =
x1
&
y0
; \
t13 = t01 & t05; \
t14 = t01 ^ t12; \
t15 = t07 ^ t13; \
t16 =
d
| t02; \
t17 =
a
^
x
; \
z
= t17 ^ t15; \
y
= t16 ^ t14; \
t16 =
x3
| t02; \
t17 =
x0
^
y1
; \
y3
= t17 ^ t15; \
y
2
= t16 ^ t14; \
} while (0)
#define SBOX7_INVERSE(type,
a, b, c, d, w, x
, y,
z
) \
#define SBOX7_INVERSE(type,
x0, x1, x2, x3, y0, y1
, y
2
,
y3
) \
do { \
type t02, t03, t04, t06, t07, t08, t09; \
type t10, t11, t13, t14, t15, t16, t01; \
t01 =
a
&
b
; \
t02 =
a
|
b
; \
t03 =
c
| t01; \
t04 =
d
& t02; \
z
= t03 ^ t04; \
t06 =
b
^ t04; \
t07 =
d
^
z
; \
t01 =
x0
&
x1
; \
t02 =
x0
|
x1
; \
t03 =
x2
| t01; \
t04 =
x3
& t02; \
y3
= t03 ^ t04; \
t06 =
x1
^ t04; \
t07 =
x3
^
y3
; \
t08 = ~ t07; \
t09 = t06 | t08; \
t10 =
b
^
d
; \
t11 =
a
|
d
; \
x
=
a
^ t09; \
t13 =
c
^ t06; \
t14 =
c
& t11; \
t15 =
d
|
x
; \
t10 =
x1
^
x3
; \
t11 =
x0
|
x3
; \
y1
=
x0
^ t09; \
t13 =
x2
^ t06; \
t14 =
x2
& t11; \
t15 =
x3
|
y1
; \
t16 = t01 | t10; \
w
= t13 ^ t15; \
y
= t14 ^ t16; \
y0
= t13 ^ t15; \
y
2
= t14 ^ t16; \
} while (0)
/* In-place inverse linear transformation. */
...
...
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