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authorMattias Andrée <maandree@operamail.com>2014-11-11 20:11:17 +0100
committerMattias Andrée <maandree@operamail.com>2014-11-11 20:11:17 +0100
commitfb8f4a68e12dc6659077b9397a7bc39059eff8f6 (patch)
treec76d8c77c2da864eca1af3638ee2712b8080a882 /c
parentm + fix for issue #14 (diff)
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fix bug in the c versions for smaller state sizes
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'c')
-rw-r--r--c/sha3.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/c/sha3.c b/c/sha3.c
index d51d004..996894c 100644
--- a/c/sha3.c
+++ b/c/sha3.c
@@ -290,14 +290,14 @@ static void sha3_keccakFRound(llong* restrict_ A, llong rc)
__C(4, 20, 21, 22, 23, 24);
#undef __C
- da = C[4] ^ rotate64(C[1], 1);
- dd = C[2] ^ rotate64(C[4], 1);
- db = C[0] ^ rotate64(C[2], 1);
- de = C[3] ^ rotate64(C[0], 1);
- dc = C[1] ^ rotate64(C[3], 1);
-
if (w == 64)
{
+ da = C[4] ^ rotate64(C[1], 1);
+ dd = C[2] ^ rotate64(C[4], 1);
+ db = C[0] ^ rotate64(C[2], 1);
+ de = C[3] ^ rotate64(C[0], 1);
+ dc = C[1] ^ rotate64(C[3], 1);
+
/* ρ and π steps, with last two part of θ */
#define __B(Bi, Ai, Dv, R) B[Bi] = rotate64(A[Ai] ^ Dv, R)
B[0] = A[0] ^ da; __B( 1, 15, dd, 28); __B( 2, 5, db, 1); __B( 3, 20, de, 27); __B( 4, 10, dc, 62);
@@ -309,6 +309,12 @@ static void sha3_keccakFRound(llong* restrict_ A, llong rc)
}
else
{
+ da = C[4] ^ rotate(C[1], 1);
+ dd = C[2] ^ rotate(C[4], 1);
+ db = C[0] ^ rotate(C[2], 1);
+ de = C[3] ^ rotate(C[0], 1);
+ dc = C[1] ^ rotate(C[3], 1);
+
/* ρ and π steps, with last two part of θ */
#define __B(Bi, Ai, Dv, R) B[Bi] = rotate(A[Ai] ^ Dv, R)
B[0] = A[0] ^ da; __B( 1, 15, dd, 28); __B( 2, 5, db, 1); __B( 3, 20, de, 27); __B( 4, 10, dc, 62);