busybox.git/libbb/pw_encrypt_md5.c, branch master

libbb: shuffle ascii64 code around, shrink i2a64()

2025-07-06T19:59:03+00:00

function                                             old     new   delta
num2str64_4chars_msb_first                             -      55     +55
num2str64_lsb_first                                    -      33     +33
i2a64                                                 42      25     -17
to64                                                  33       -     -33
to64_msb_first                                        55       -     -55
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 0/1 up/down: 88/-105)           Total: -17 bytes

Signed-off-by: Denys Vlasenko

fix assorted unused code and wrong format specs found by cppchekc (bug 6716)

2013-11-29T15:43:33+00:00

Signed-off-by: Denys Vlasenko

*: pass md5/shaN context pointer as 1st arg, not last

2010-10-16T18:45:27+00:00

function                                             old     new   delta
md5_hash_block                                       458     459      +1
filter_rename_config                                 252     250      -2
md5_crypt                                            591     587      -4

Signed-off-by: Denys Vlasenko

libbb/crypt: code shrink

2008-12-04T15:29:35+00:00

function                                             old     new   delta
to64_msb_first                                         -      63     +63
des_crypt                                           1509    1338    -171
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 63/-171)          Total: -108 bytes

libbb: disable a second md5 implementation which managed to creep in :)

2008-11-11T01:38:04+00:00

function                                             old     new   delta
sha512_end                                           239     237      -2
sha256_end                                           162     160      -2
sha1_end                                             191     189      -2
md5_end                                              168     166      -2
__md5__magic                                           4       -      -4
md5_crypt                                            627     621      -6
static.S                                              16       -     -16
__md5_Init                                            42       -     -42
static.P                                              64       -     -64
__md5_Final                                          131       -    -131
__md5_Update                                         153       -    -153
static.C                                             268      12    -256
__md5_Transform                                      293       -    -293
------------------------------------------------------------------------------
(add/remove: 0/7 grow/shrink: 0/6 up/down: 0/-973)           Total: -973 bytes

libbb: add optionl support for SHA256/512 encrypted passwords

2008-11-10T18:52:35+00:00

function                                             old     new   delta
sha_crypt                                              -    2423   +2423
cryptpw_main                                         128     183     +55
to64                                                   -      29     +29
pw_encrypt                                           974    1000     +26
str_rounds                                             -      11     +11
login_main                                          1532    1541      +9
packed_usage                                       25215   25200     -15
__md5_to64                                            29       -     -29
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 3/1 up/down: 2553/-44)         Total: 2509 bytes

crypt: code shrink

2008-06-14T22:11:29+00:00

function                                             old     new   delta
des_crypt                                              -    1682   +1682
md5_crypt                                              -     627    +627
pw_encrypt                                          3608    1036   -2572
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/1 up/down: 2309/-2572)       Total: -263 bytes

trivial crypt shrinkage

2008-06-13T15:13:41+00:00

function                                             old     new   delta
__md5_to64                                            27      29      +2
pw_encrypt                                          3631    3608     -23

uclibc insists on having 70k static buffer for crypt.

2008-06-12T16:55:59+00:00

For bbox it's not acceptable. Roll our own des and md5 crypt
implementation. Against older uclibc:

   text    data     bss     dec     hex filename
 759945     604    6684  767233   bb501 busybox_old
 759766     604    6684  767054   bb44e busybox_unstripped

so, we still save on code size.