Denys Vlasenko
|
7714518f1a
|
tls: code shrink P256 code
function old new delta
sp_256_to_bin 148 120 -28
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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2021-10-01 13:51:39 +02:00 |
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Denys Vlasenko
|
ac36e70074
|
tls: remove unused define
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-09-30 00:03:23 +02:00 |
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Denys Vlasenko
|
81f9a0035b
|
tls: tweak sp_256_ecc_gen_k_10 for smaller code
function old new delta
curve_P256_compute_pubkey_and_premaster 194 191 -3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-27 18:48:43 +02:00 |
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Denys Vlasenko
|
840ae69615
|
tls: shrink sp_256_mod_mul_norm_10 more
function old new delta
sp_256_mod_mul_norm_10 1439 1305 -134
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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2021-04-27 13:32:19 +02:00 |
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Denys Vlasenko
|
646e856294
|
tls: shrink sp_256_mod_mul_norm_10
function old new delta
sp_256_mod_mul_norm_10 1439 1405 -34
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-27 13:09:44 +02:00 |
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Denys Vlasenko
|
48a18d15df
|
tls: shrink p256_base more
function old new delta
static.p256_base_bin - 64 +64
sp_256_point_from_bin2x32 - 62 +62
static.base_y 40 - -40
static.base_x 40 - -40
curve_P256_compute_pubkey_and_premaster 291 194 -97
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 0/1 up/down: 126/-177) Total: -51 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-27 12:24:21 +02:00 |
|
Denys Vlasenko
|
39a3ef51b5
|
tls: shrink p256_base
function old new delta
curve_P256_compute_pubkey_and_premaster 196 291 +95
static.base_y - 40 +40
static.base_x - 40 +40
p256_base 244 - -244
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 1/0 up/down: 175/-244) Total: -69 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-27 01:32:05 +02:00 |
|
Denys Vlasenko
|
a2bc52dd44
|
tls: reorder P256 functions to make more sense
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-27 01:21:26 +02:00 |
|
Denys Vlasenko
|
e52e43c72f
|
tls: whitespace fixes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-27 00:40:40 +02:00 |
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Denys Vlasenko
|
9a40be433d
|
tls: get rid of constant-time add/sub operations
function old new delta
sp_256_sub_10 - 22 +22
static.sp_256_mont_reduce_10 176 178 +2
sp_256_mod_mul_norm_10 1440 1439 -1
sp_256_proj_point_dbl_10 453 446 -7
sp_256_ecc_mulmod_10 1229 1216 -13
static.sp_256_mont_sub_10 52 30 -22
static.sp_256_cond_sub_10 32 - -32
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/4 up/down: 24/-75) Total: -51 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 21:58:04 +02:00 |
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Denys Vlasenko
|
120401249a
|
tls: fix whitespace in P256 code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 20:24:34 +02:00 |
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Denys Vlasenko
|
93b886f54b
|
tls: shrink sp_256_mont_inv_10
function old new delta
sp_256_ecc_mulmod_10 1237 1251 +14
p256_mod_2 32 - -32
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/0 up/down: 14/-32) Total: -18 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 18:05:53 +02:00 |
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Denys Vlasenko
|
6381f3d4f6
|
tls: stop passing temporary buffer address in P256 code
function old new delta
sp_256_proj_point_dbl_10 435 453 +18
sp_256_ecc_mulmod_10 1300 1237 -63
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 18/-63) Total: -45 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 17:41:43 +02:00 |
|
Denys Vlasenko
|
772e18775e
|
tls: shrink sp_256_proj_point_dbl_10
function old new delta
sp_256_ecc_mulmod_10 1329 1300 -29
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 17:25:27 +02:00 |
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Denys Vlasenko
|
b3b1713a58
|
tls: in P256 replace constant-time compares with usual ones
function old new delta
sp_256_cmp_10 - 24 +24
sp_256_ecc_mulmod_10 1332 1329 -3
sp_256_cmp_equal_10 30 - -30
static.sp_256_cmp_10 43 - -43
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 0/1 up/down: 24/-76) Total: -52 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 16:53:53 +02:00 |
|
Denys Vlasenko
|
4d3a5c135c
|
tls: simplify sp_256_proj_point_dbl_10
function old new delta
sp_256_proj_point_dbl_10 490 435 -55
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 15:21:38 +02:00 |
|
Denys Vlasenko
|
03ab2a90bb
|
tls: simplify array manipulations in sp_256_ecc_mulmod_10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 14:55:46 +02:00 |
|
Denys Vlasenko
|
166363f47d
|
tls: get rid of address obfuscation trick in P256
function old new delta
addr_mask 8 - -8
sp_256_ecc_mulmod_10 1363 1330 -33
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-41) Total: -41 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 14:40:21 +02:00 |
|
Denys Vlasenko
|
074b33bf16
|
tls: simplify sp_256_ecc_gen_k_10, cosmetic changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 14:33:38 +02:00 |
|
Denys Vlasenko
|
f18a1fd6f3
|
tls: implement secp256r1 elliptic curve (aka P256)
function old new delta
sp_256_mod_mul_norm_10 - 1439 +1439
sp_256_ecc_mulmod_10 - 1363 +1363
sp_256_proj_point_dbl_10 - 490 +490
p256_base - 244 +244
static.sp_256_mont_sqr_10 - 234 +234
static.sp_256_mont_mul_10 - 214 +214
curve_P256_compute_pubkey_and_premaster - 197 +197
static.sp_256_mont_reduce_10 - 176 +176
static.sp_256_from_bin - 149 +149
sp_256_to_bin - 148 +148
tls_handshake 2046 2146 +100
static.sp_256_mul_add_10 - 82 +82
.rodata 103275 103336 +61
static.sp_256_mont_sub_10 - 52 +52
static.sp_256_mont_dbl_10 - 52 +52
static.sp_256_cmp_10 - 43 +43
p256_mod - 40 +40
static.sp_256_cond_sub_10 - 32 +32
p256_mod_2 - 32 +32
sp_256_norm_10 - 31 +31
sp_256_cmp_equal_10 - 30 +30
sp_256_add_10 - 22 +22
addr_mask - 8 +8
------------------------------------------------------------------------------
(add/remove: 22/0 grow/shrink: 2/0 up/down: 5239/0) Total: 5239 bytes
text data bss dec hex filename
1018192 559 5020 1023771 f9f1b busybox_old
1023431 559 5020 1029010 fb392 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
2021-04-26 13:30:09 +02:00 |
|