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Brian Smith
nettle
Commits
323e2451
Commit
323e2451
authored
Feb 16, 2002
by
Niels Möller
Browse files
* sparc/aes.asm: Use that IDX2(j) == j ^ 2
Rev: src/nettle/sparc/aes.asm:1.42
parent
9c11807f
Changes
1
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Inline
Side-by-side
sparc/aes.asm
View file @
323e2451
...
...
@@ -123,7 +123,10 @@ _aes_crypt:
ld
[
idx
-
32
],
t1
!
1
!
AES_SIDX2
ld
[
idx
-
16
],
t2
!
2
!
ld
[
idx
-
16
],
t2
!
2
!
IDX2
(
j
)
=
j
XOR
2
xor
i
,
8
,
t2
!
wtxt
[
IDX1...
]
add
wtxt
,
t1
,
t1
!
1
ldub
[
t1
+
2
],
t1
!
1
...
...
@@ -162,6 +165,9 @@ _aes_crypt:
add
idx
,
4
,
idx
!
Fetch
roundkey
!
FIXME:
We
could
save
one
instruction
!
if
we
kept
a
pointer
to
the
current
subkey
,
!
indexed
by
i.
ld
[
ctx
+
round
],
t1
add
round
,
4
,
round
...
...
@@ -290,3 +296,36 @@ _aes_crypt:
!
aes256
(
ECB
decrypt
):
14.81
s
,
0.675
MB
/
s
!
aes256
(
CBC
encrypt
):
22.65
s
,
0.442
MB
/
s
!
aes256
(
CBC
decrypt
):
16.46
s
,
0.608
MB
/
s
!
After
implementing
double
buffering
!
aes128
(
ECB
encrypt
):
12.59
s
,
0.794
MB
/
s
!
aes128
(
ECB
decrypt
):
10.56
s
,
0.947
MB
/
s
!
aes128
(
CBC
encrypt
):
17.91
s
,
0.558
MB
/
s
!
aes128
(
CBC
decrypt
):
12.30
s
,
0.813
MB
/
s
!
!
aes192
(
ECB
encrypt
):
15.03
s
,
0.665
MB
/
s
!
aes192
(
ECB
decrypt
):
12.56
s
,
0.796
MB
/
s
!
aes192
(
CBC
encrypt
):
20.30
s
,
0.493
MB
/
s
!
aes192
(
CBC
decrypt
):
14.26
s
,
0.701
MB
/
s
!
!
aes256
(
ECB
encrypt
):
17.30
s
,
0.578
MB
/
s
!
aes256
(
ECB
decrypt
):
14.51
s
,
0.689
MB
/
s
!
aes256
(
CBC
encrypt
):
22.75
s
,
0.440
MB
/
s
!
aes256
(
CBC
decrypt
):
16.35
s
,
0.612
MB
/
s
!
After
reordering
aes
-
encrypt.c
and
aes
-
decypt.c
!
(
the
order
probably
causes
strange
cache
-
effects
):
!
aes128
(
ECB
encrypt
):
9.21
s
,
1.086
MB
/
s
!
aes128
(
ECB
decrypt
):
11.13
s
,
0.898
MB
/
s
!
aes128
(
CBC
encrypt
):
14.12
s
,
0.708
MB
/
s
!
aes128
(
CBC
decrypt
):
13.77
s
,
0.726
MB
/
s
!
!
aes192
(
ECB
encrypt
):
10.86
s
,
0.921
MB
/
s
!
aes192
(
ECB
decrypt
):
13.17
s
,
0.759
MB
/
s
!
aes192
(
CBC
encrypt
):
15.74
s
,
0.635
MB
/
s
!
aes192
(
CBC
decrypt
):
15.91
s
,
0.629
MB
/
s
!
!
aes256
(
ECB
encrypt
):
12.71
s
,
0.787
MB
/
s
!
aes256
(
ECB
decrypt
):
15.38
s
,
0.650
MB
/
s
!
aes256
(
CBC
encrypt
):
17.49
s
,
0.572
MB
/
s
!
aes256
(
CBC
decrypt
):
17.87
s
,
0.560
MB
/
s
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