[PATCH] sha3sum: New applet

[Lauri Kasanen]

Hi Denys

Attaching a patch for the new SHA-3 algorithm, and a test case.

Bloatcheck:
function                                             old     new   delta
.rodata                                             1947    2435    +488
KeccakF                                                -     376    +376
sha3_hash                                              -     252    +252
usage_messages                                       505     701    +196
KeccakF_RoundConstants                                 -     192    +192
sha3_end                                               -     113    +113
hash_file                                            195     248     +53
KeccakF_RotationConstants                              -      25     +25
KeccakF_PiLane                                         -      25     +25
sha3_begin                                             -      22     +22
KeccakF_Mod5                                           -      10     +10
applet_names                                          14      22      +8
applet_main                                           16      24      +8
applet_nameofs                                         4       6      +2
------------------------------------------------------------------------------
(add/remove: 8/0 grow/shrink: 6/0 up/down: 1770/0)           Total: 1770
bytes
   text    data     bss     dec     hex filename
  12362     762      88   13212    339c busybox_old
  13666     762      88   14516    38b4 busybox_unstripped


- Lauri

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