busybox-w32/libbb/yescrypt/alg-yescrypt-kdf.c, branch cron_changes

libbb/yescrypt: de-unroll salsa20()

2025-07-20T06:42:51+00:00

function old new delta salsa20 760 296 -464 Signed-off-by: Denys Vlasenko

libbb/yescrypt: code shrink

2025-07-19T15:20:35+00:00

function old new delta blockmix_xor_save 1169 708 -461 Signed-off-by: Denys Vlasenko

libbb/yescrypt: code shrink

2025-07-15T03:47:18+00:00

function old new delta blockmix_xor 1177 702 -475 Signed-off-by: Denys Vlasenko

libbb/yescrypt: code shrink

2025-07-11T06:58:07+00:00

function old new delta salsa20 684 650 -34 blockmix_salsa8 198 144 -54 blockmix 762 565 -197 blockmix_xor 1322 1028 -294 blockmix_xor_save 1499 1103 -396 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-975) Total: -975 bytes Signed-off-by: Denys Vlasenko

libbb/yescrypt: code shrink

2025-07-09T08:38:11+00:00

function old new delta static.yescrypt_kdf32_body 847 823 -24 yescrypt_r 805 767 -38 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-62) Total: -62 bytes Signed-off-by: Denys Vlasenko

libbb: introduce and use block-XOR functions

2025-07-09T05:00:59+00:00

On x86_64, they can be done in 16-byte blocks 64-bit: function old new delta xorbuf_3 - 84 +84 xorbuf64_3_aligned64 - 58 +58 smix1 687 712 +25 xwrite_encrypted 520 534 +14 xorbuf16_aligned_long - 13 +13 tls_xread_record 733 742 +9 xorbuf 21 13 -8 xorbuf_aligned_AES_BLOCK_SIZE 15 - -15 blockmix 814 762 -52 blockmix_salsa8 317 198 -119 blockmix_xor_save 1620 1499 -121 blockmix_xor 1543 1322 -221 ------------------------------------------------------------------------------ (add/remove: 4/1 grow/shrink: 3/5 up/down: 203/-536) Total: -333 bytes 32-bit: function old new delta xorbuf_3 - 76 +76 xorbuf64_3_aligned64 - 36 +36 xorbuf16_aligned_long - 23 +23 xwrite_encrypted 499 507 +8 tls_xread_record 646 650 +4 xorbuf 22 11 -11 xorbuf_aligned_AES_BLOCK_SIZE 23 - -23 blockmix 1083 938 -145 blockmix_salsa8 415 210 -205 blockmix_salsa8_xor 601 163 -438 blockmix_xor 2103 1533 -570 blockmix_xor_save 2614 1859 -755 ------------------------------------------------------------------------------ (add/remove: 4/1 grow/shrink: 2/6 up/down: 147/-2147) Total: -2000 bytes Signed-off-by: Denys Vlasenko

libbb/yescrypt: disable NROM code

2025-07-08T04:52:27+00:00

function old new delta smix1 - 595 +595 smix2 - 414 +414 static.yescrypt_kdf32_body 899 847 -52 static.smix2 420 - -420 static.smix1 604 - -604 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 0/1 up/down: 1009/-1076) Total: -67 bytes Signed-off-by: Denys Vlasenko

libbb/yescrypt: code shrink

2025-07-07T22:16:56+00:00

Setting EINVAL in errno is not necessary, just error return works. function old new delta yescrypt_kdf32_body 1434 1423 -11 yescrypt_r 1029 990 -39 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-50) Total: -50 bytes Signed-off-by: Denys Vlasenko

libbb/yescrypt: madvise(MADV_HUGEPAGE) our usually very large allocation

2025-07-07T21:07:58+00:00

Nearly ~2 faster run when buffer is gigabytes in size function old new delta yescrypt_kdf32_body 1386 1406 +20 Signed-off-by: Denys Vlasenko

libbb/yescrypt: disable unrolling in two places

2025-07-07T20:34:31+00:00

Also, make many define macros safer function old new delta blockmix 2300 814 -1486 blockmix_xor 4606 1543 -3063 blockmix_xor_save 4737 1620 -3117 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-7666) Total: -7666 bytes Signed-off-by: Denys Vlasenko