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path: root/networking/tls_sp_c32.c (follow)
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* *: add NOINLINEs where code noticeably shrinksDenys Vlasenko2021-10-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | function old new delta display 85 1463 +1378 -73 bytes select_and_cluster - 1088 +1088 -139 bytes parse_reply - 979 +979 -109 bytes zbc_num_sqrt - 632 +632 -191 bytes show_bridge_port - 585 +585 -56 bytes sp_256_proj_point_add_8 - 576 +576 -45 bytes encode_then_append_var_plusminus - 554 +554 -118 bytes read_mode_db - 537 +537 -47 bytes fbset_main 1331 747 -584 sp_256_ecc_mulmod_8 1157 536 -621 brctl_main 2189 1548 -641 expand_one_var 2544 1872 -672 zxc_vm_process 6412 5589 -823 send_queries 1813 725 -1088 recv_and_process_peer_pkt 2245 1018 -1227 bb_dump_dump 1531 80 -1451 ------------------------------------------------------------------------------ (add/remove: 7/0 grow/shrink: 1/8 up/down: 6329/-7107) Total: -778 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: whitespace fixDenys Vlasenko2021-10-061-3/+3
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: sp_256_sub_8_p256_mod always subtracts in-place, use thatDenys Vlasenko2021-10-061-63/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | i386: function old new delta sp_256_mont_reduce_8 245 243 -2 sp_256_mont_dbl_8 26 24 -2 sp_256_ecc_mulmod_8 1161 1157 -4 sp_256_proj_point_dbl_8 359 353 -6 sp_256_sub_8_p256_mod 71 32 -39 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-53) Total: -53 bytes non-asm code: function old new delta sp_256_sub_8_p256_mod - 12 +12 sp_256_mont_reduce_8 250 243 -7 sp_256_mont_dbl_8 31 24 -7 sp_256_ecc_mulmod_8 1171 1157 -14 sp_256_proj_point_dbl_8 374 353 -21 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/4 up/down: 12/-49) Total: -37 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: x86-64 optimized sp_256_sub_8_p256_modDenys Vlasenko2021-10-061-1/+31
| | | | | | | | | | | | | function old new delta sp_256_sub_8_p256_mod - 53 +53 sp_256_mont_reduce_8 223 217 -6 sp_256_mont_dbl_8 38 32 -6 sp_256_ecc_mulmod_8 1535 1529 -6 sp_256_proj_point_dbl_8 469 454 -15 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/4 up/down: 53/-33) Total: 20 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: x86-64 assemblyDenys Vlasenko2021-10-061-0/+99
| | | | | | | | | | | | | | function old new delta sp_256_mont_mul_8 127 155 +28 sp_256_proj_point_dbl_8 448 469 +21 sp_256_mont_sub_8 23 35 +12 sp_256_mont_dbl_8 26 38 +12 sp_256_sub_8 44 49 +5 sp_256_ecc_mulmod_8 1530 1535 +5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 6/0 up/down: 83/0) Total: 83 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: tweak arm assembly (currently disabled)Denys Vlasenko2021-10-061-88/+89
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P@256: remove "header comment is kept intact" commentDenys Vlasenko2021-10-061-1/+0
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: do not dumplicate sp_256_sub_8()Denys Vlasenko2021-10-061-23/+3
| | | | | | | | | | | | | function old new delta sp_256_proj_point_dbl_8 359 374 +15 sp_256_ecc_mulmod_8 1159 1171 +12 sp_256_mont_reduce_8 245 250 +5 sp_256_mont_dbl_8 26 31 +5 sp_256_sub_8_p256_mod 43 - -43 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 4/0 up/down: 37/-43) Total: -6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: shrink sp_256_mul_add_8 a bit moreDenys Vlasenko2021-10-061-14/+24
| | | | | | | function old new delta sp_256_mont_reduce_8 257 245 -12 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256: propagate constants, create dedicated "subtract p256_mod" functionDenys Vlasenko2021-10-061-32/+108
| | | | | | | | | | | | | | | | | | 8 instances of this subtraction probably warrant a few bytes more of code. function old new delta sp_256_sub_8_p256_mod - 71 +71 sp_256_mont_sub_8 - 29 +29 sp_256_mont_dbl_8 - 26 +26 sp_256_mont_reduce_8 262 257 -5 sp_256_ecc_mulmod_8 1171 1161 -10 sp_256_proj_point_dbl_8 374 359 -15 static.sp_256_mont_sub_8 29 - -29 static.sp_256_mont_dbl_8 31 - -31 ------------------------------------------------------------------------------ (add/remove: 3/2 grow/shrink: 0/3 up/down: 126/-90) Total: 36 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: optimize sp_256_mont_reduce_8 in P256Denys Vlasenko2021-10-061-21/+125
| | | | | | | | | The code size decrease is small, but we eliminate ALL multiplies! function old new delta sp_256_mont_reduce_8 268 262 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: optimize sp_256_mul_8 in P256Denys Vlasenko2021-10-051-2/+82
| | | | | | | function old new delta sp_256_mont_mul_8 151 150 -1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: replace "26-bit" P256 code with 32-bit one.Denys Vlasenko2021-10-051-490/+581
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | function old new delta sp_256_ecc_mulmod_8 - 1171 +1171 sp_256_mod_mul_norm_8 - 834 +834 sp_256_proj_point_dbl_8 - 374 +374 sp_256_mont_reduce_8 - 268 +268 sp_256_mont_mul_8 - 151 +151 sp_256_sub_8 - 76 +76 sp_256_add_8 - 76 +76 sp_256_cmp_8 - 38 +38 static.sp_256_mont_dbl_8 - 31 +31 static.sp_256_mont_sub_8 - 29 +29 sp_256_to_bin_8 - 28 +28 sp_256_point_from_bin2x32 50 73 +23 sp_256_mont_sqr_8 - 7 +7 sp_256_mont_sqr_10 7 - -7 p256_mod 40 32 -8 curve_P256_compute_pubkey_and_premaster 186 167 -19 sp_256_sub_10 22 - -22 sp_256_add_10 22 - -22 sp_256_cmp_10 24 - -24 sp_256_norm_10 31 - -31 static.sp_256_mont_sub_10 49 - -49 static.sp_256_mont_dbl_10 52 - -52 static.sp_256_mul_add_10 82 - -82 sp_256_from_bin_10 119 - -119 sp_256_to_bin_10 120 - -120 sp_256_mont_reduce_10 178 - -178 sp_256_mont_mul_10 214 - -214 sp_256_proj_point_dbl_10 451 - -451 sp_256_ecc_mulmod_10 1216 - -1216 sp_256_mod_mul_norm_10 1305 - -1305 ------------------------------------------------------------------------------ (add/remove: 12/15 grow/shrink: 1/2 up/down: 3106/-3919) Total: -813 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: fix the case of sp_256_mont_tpl_10() leaving striay high bitsDenys Vlasenko2021-10-051-11/+26
| | | | | | | | | | | | | It has no effect on correctness, but interferes with compating internal state of different implementations. function old new delta sp_256_proj_point_dbl_10 443 451 +8 static.sp_256_mont_sub_10 46 49 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 11/0) Total: 11 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: fix (what looks like) a rare corner case bug in P256Denys Vlasenko2021-10-051-4/+7
| | | | | | | function old new delta static.sp_256_mont_sub_10 30 46 +16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: remove one overzealous debugging statementDenys Vlasenko2021-10-051-4/+0
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: add debugging scaffolding to P256 codeDenys Vlasenko2021-10-051-0/+53
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: another P256 code shrinkDenys Vlasenko2021-10-051-69/+54
| | | | | | | | | | | | | | | | | Propagate constant arrays and scalars deeper down call chain. Use sp_256_mont_mul_10 to implement sp_256_mont_sqr_10. function old new delta sp_256_mont_mul_10 - 214 +214 sp_256_mont_reduce_10 - 178 +178 sp_256_mont_sqr_10 - 7 +7 static.sp_256_mont_reduce_10 178 - -178 static.sp_256_mont_mul_10 214 - -214 static.sp_256_mont_sqr_10 234 - -234 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 0/0 up/down: 399/-626) Total: -227 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: P256 code shrinkDenys Vlasenko2021-10-051-52/+42
| | | | | | | | | | | | | | | function old new delta sp_256_to_bin_10 - 120 +120 sp_256_from_bin_10 - 119 +119 sp_256_proj_point_dbl_10 446 443 -3 curve_P256_compute_pubkey_and_premaster 191 186 -5 sp_256_point_from_bin2x32 62 50 -12 sp_256_to_bin 120 - -120 static.sp_256_from_bin 149 - -149 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 0/3 up/down: 239/-289) Total: -50 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: code shrink P256 codeDenys Vlasenko2021-10-011-14/+12
| | | | | | | function old new delta sp_256_to_bin 148 120 -28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: remove unused defineDenys Vlasenko2021-09-301-2/+0
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: tweak sp_256_ecc_gen_k_10 for smaller codeDenys Vlasenko2021-04-271-7/+0
| | | | | | | function old new delta curve_P256_compute_pubkey_and_premaster 194 191 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: shrink sp_256_mod_mul_norm_10 moreDenys Vlasenko2021-04-271-18/+18
| | | | | | | function old new delta sp_256_mod_mul_norm_10 1439 1305 -134 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: shrink sp_256_mod_mul_norm_10Denys Vlasenko2021-04-271-60/+85
| | | | | | | function old new delta sp_256_mod_mul_norm_10 1439 1405 -34 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: shrink p256_base moreDenys Vlasenko2021-04-271-10/+7
| | | | | | | | | | | | | 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>
* tls: shrink p256_baseDenys Vlasenko2021-04-271-12/+18
| | | | | | | | | | | | 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>
* tls: reorder P256 functions to make more senseDenys Vlasenko2021-04-271-179/+179
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: whitespace fixesDenys Vlasenko2021-04-271-3/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: get rid of constant-time add/sub operationsDenys Vlasenko2021-04-261-37/+21
| | | | | | | | | | | | | | | 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>
* tls: fix whitespace in P256 codeDenys Vlasenko2021-04-261-501/+501
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: shrink sp_256_mont_inv_10Denys Vlasenko2021-04-261-1/+9
| | | | | | | | | | 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>
* tls: stop passing temporary buffer address in P256 codeDenys Vlasenko2021-04-261-35/+26
| | | | | | | | | | 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>
* tls: shrink sp_256_proj_point_dbl_10Denys Vlasenko2021-04-261-37/+24
| | | | | | | function old new delta sp_256_ecc_mulmod_10 1329 1300 -29 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: in P256 replace constant-time compares with usual onesDenys Vlasenko2021-04-261-14/+9
| | | | | | | | | | | | 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>
* tls: simplify sp_256_proj_point_dbl_10Denys Vlasenko2021-04-261-36/+22
| | | | | | | function old new delta sp_256_proj_point_dbl_10 490 435 -55 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: simplify array manipulations in sp_256_ecc_mulmod_10Denys Vlasenko2021-04-261-18/+17
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: get rid of address obfuscation trick in P256Denys Vlasenko2021-04-261-10/+2
| | | | | | | | | | 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>
* tls: simplify sp_256_ecc_gen_k_10, cosmetic changesDenys Vlasenko2021-04-261-135/+49
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* tls: implement secp256r1 elliptic curve (aka P256)Denys Vlasenko2021-04-261-0/+1052
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>
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-21 14:51:07 +0000