busybox.git/libbb/yescrypt/alg-yescrypt-common.c, branch master

libbb/yescrypt: actually, largest allowed salt is 86 chars, support that

2025-07-17T15:01:40+00:00

function                                             old     new   delta
yescrypt_r                                           767     756     -11

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/yescrypt: disable code which accepts unusual yescrypt parameters

2025-07-08T03:34:41+00:00

Almost any reasonable yescrypt hashes in /etc/shadow should only ever use
"jXY" parameters which set N and r. Fancy multi-byte-encoded
wide integers are not needed for that.

function                                             old     new   delta
static.yescrypt_kdf32_body                             -     899    +899
static.PBKDF2_SHA256                                 213     219      +6
decode64_uint32                                      141       -    -141
yescrypt_r                                           990     805    -185
yescrypt_kdf32_body                                 1423       -   -1423
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 1/1 up/down: 905/-1749)        Total: -844 bytes

Signed-off-by: Denys Vlasenko

libbb/yescrypt: explain and shrink decode64_uint32()

2025-07-08T01:47:48+00:00

function                                             old     new   delta
decode64_uint32                                      177     141     -36

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

add libbb/yescrypt/PARAMETERS

2025-07-07T19:36:31+00:00

Signed-off-by: Denys Vlasenko

libbb/yescrypt: no need to find salt-terminating "$" twice

2025-07-07T16:28:56+00:00

function                                             old     new   delta
yescrypt_r                                          1048    1029     -19

Signed-off-by: Denys Vlasenko

libbb/yescrypt: code shrink

2025-07-07T16:03:10+00:00

function                                             old     new   delta
yescrypt_r                                          1063    1048     -15

Signed-off-by: Denys Vlasenko

libbb/yescrypt: fix salts ending in dots (corresponding to binary zeros)

2025-07-07T15:26:47+00:00

Signed-off-by: Denys Vlasenko

libbb/yescrypt: accept longer salts (up to 84 chars)

2025-07-07T15:08:32+00:00

function                                             old     new   delta
cryptpw_main                                         214     223      +9
chpasswd_main                                        347     356      +9
passwd_main                                          931     934      +3
yescrypt_r                                          1084    1056     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 21/-28)             Total: -7 bytes

Signed-off-by: Denys Vlasenko