Skip to content
GitLab
Projects
Groups
Snippets
/
Help
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
Menu
Open sidebar
Dmitry Baryshkov
nettle
Commits
d9a172fd
Commit
d9a172fd
authored
Jun 20, 2011
by
Niels Möller
Browse files
Comment fix, and (invariant) argument reorder in SBOX1.
Rev: nettle/serpent-encrypt.c:1.12
parent
6dc92a99
Changes
1
Hide whitespace changes
Inline
Side-by-side
serpent-encrypt.c
View file @
d9a172fd
...
...
@@ -96,7 +96,28 @@
/* FIXME: Arrange for some overlap between inputs and outputs? */
/* S1: 15 12 2 7 9 0 5 10 1 11 14 8 6 13 3 4 */
#define SBOX1(x0, x1, x2, x3, y0, y1, y2, y3) \
/* Original single-assignment form:
t01 = x0 | x3; 0
t02 = x2 ^ x3; 0
t03 = ~ x1; 0
t04 = x0 ^ x2; 0
t05 = x0 | t03; 0
t06 = x3 & t04; 0
t07 = t01 & t02; 0
t08 = x1 | t06; 0
y2 = t02 ^ t05; 0
t10 = t07 ^ t08; 0
t11 = t01 ^ t10; 0
t12 = y2 ^ t11; 0
t13 = x1 & x3; 0
y3 = ~ t10;
y1 = t13 ^ t12; 0
t16 = t10 | y1; 0
t17 = t05 & t16; 0
y0 = x2 ^ t17; 0
*/
#define SBOX1(x0, x1, x2, x3, y0, y1, y2, y3) \
do { \
y1 = x0 | x3; \
y2 = x2 ^ x3; \
...
...
@@ -112,7 +133,7 @@
x0 ^= y2; \
y1 = x1 & x3; \
y1 ^= x0; \
x3 = y
3
| y
1
; \
x3 = y
1
| y
3
; \
y3 = ~ y3; \
y0 &= x3; \
y0 ^= x2; \
...
...
Write
Preview
Supports
Markdown
0%
Try again
or
attach a new file
.
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment