See http://keccak.noekeon.org/ for the official implementation.
KeccakInPython implements the SHA 3 hash function. This project extends the original implementation by implementing testcases and optimizations for the KeccakInPython class.
------- Original README -------
List of files: - Keccak.py : the Keccak and KeccakError classes - demo_KeccakF.py : example of use of Keccak_f function on a 0-filled 5×5 matrix - demo_TestVectors.py : verification of Short/Long test vectors. The test vectors must be copied in the same location as the Python files
The Keccak module is stateless. It takes your inputs, performs the computation and returns the result.
- Compute a hash using Keccak[r=1152, c=448] (224 bits of output) on '00112233445566778899AABBCCDDEEFF' (8*16bits=128 bits)
import Keccak myKeccak=Keccak.Keccak() myKeccak.Keccak((128,'00112233445566778899AABBCCDDEEFF'),1152,448,224,True)
Create a Keccak function with (r=1152, c=448 (i.e. w=64))
String ready to be absorbed: 00112233445566778899AABBCCDDEEFF0100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080 (will be completed by 56 x '00')
Current value of state: Before first round ['0x7766554433221100', '0xffeeddccbbaa9988', '0x1', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] ['0x0', '0x0', '0x8000000000000000', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] Current value of state: Satus end of round #1/24 ['0xdc77ae5456dd06dd', '0x2110377665444332', '0x7e6e5e6e7e6e5e6e', '0x8019e64c44470000', '0xba208b329807a91'] ['0x5669988982a11005', '0xa8864666600eeaaa', '0xe3304ddaaffcc99e', '0x42206eecc2a88664', '0xb77bbffbb77bbffb'] ['0x1111111110111117', '0x371dfb48ae8462d1', '0x224555108b45ff10', '0xddba8867553200ef', '0x4c3bf7a26e19d5e'] ['0xcb3621d00772611c', '0x13f17c0eb95b8bb5', '0x985510cc88440ddd', '0x2cd47cc54bb25aa3', '0x35c1100ff8899883'] ['0x5deab70448bfe251', '0x88a62388992232cc', '0x7788547722dd0032', '0x8804819c9915908c', '0xdd995510cc88440d'] <...> Current value of state: Satus end of round #24/24 ['0xd89c919ce8078903', '0x92ff885abc7f0af9', '0xa0cdebf3ae8d1078', '0xde568902e183b3ce', '0xe3d1096857dc5b35'] ['0xc5f432f2633d3da0', '0x6a0094e2d96f8f35', '0xff92be8c648edc5a', '0xb87fe7012b84523a', '0xb8b7e144e77b3096'] ['0xf4832b396a99f318', '0xd8c10bcbaed2e2cf', '0x7d0f5ff34fc95a2e', '0x404281a6b9b3c2a2', '0xa758a863c74aecbe'] ['0x5b0f0672fcebc63e', '0xfca88e2204aa233e', '0xb62ef1ba33bc5a69', '0x795abef031f2d7dd', '0x7b7dc16e91fff6cd'] ['0x677823df6ebd0544', '0xd2a1fc63c7702e0e', '0x49b07e16adc62d95', '0x6bdb0b4f074e8b2b', '0xc27f39383b4799b5']
Value after absorption : 038907E89C919CD8F90A7FBC5A88FF9278108DAEF3EBCDA0CEB383E1028956DE355BDC576809D1E3A03D3D63F232F4C5358F6FD9E294006A5ADC8E648CBE92FF3A52842B01E77FB896307BE744E1B7B818F3996A392B83F4CFE2D2AECB0BC1D82E5AC94FF35F0F7DA2C2B3B9A6814240BEEC4AC763A858A73EC6EBFC72060F5B3E23AA04228EA8FC695ABC33BAF12EB6DDD7F231F0BE5A79CDF6FF916EC17D7B4405BD6EDF2378670E2E70C763FCA1D2952DC6AD167EB0492B8B4E074F0BDB6BB599473B38397FC2
Value after squeezing : 038907E89C919CD8F90A7FBC5A88FF9278108DAEF3EBCDA0CEB383E1028956DE355BDC576809D1E3A03D3D63F232F4C5358F6FD9E294006A5ADC8E648CBE92FF3A52842B01E77FB896307BE744E1B7B818F3996A392B83F4CFE2D2AECB0BC1D82E5AC94FF35F0F7DA2C2B3B9A6814240BEEC4AC763A858A73EC6EBFC72060F5B3E23AA04228EA8FC695ABC33BAF12EB6DDD7F231F0BE5A79CDF6FF916EC17D7B4405BD6EDF2378670E2E70C763FCA1D2952DC6AD167EB0492B8B4E074F0BDB6BB599473B38397FC2
'038907E89C919CD8F90A7FBC5A88FF9278108DAEF3EBCDA0CEB383E1'
- Computation of the Keccak-f function on an all-zero state
import Keccak A=[[0,0,0,0,0],[0,0,0,0,0],[0,0,0,0,0],[0,0,0,0,0],[0,0,0,0,0]] myKeccak=Keccak.Keccak(1600) myKeccak.Keccakf(A, True) myKeccak.printState(A,'Final result')
Current value of state: Before first round ['0x0', '0x0', '0x0', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] ['0x0', '0x0', '0x0', '0x0', '0x0'] Current value of state: Satus end of round #1/24 ['0x1L', '0x0L', '0x0L', '0x0L', '0x0L'] ['0x0L', '0x0L', '0x0L', '0x0L', '0x0L'] ['0x0L', '0x0L', '0x0L', '0x0L', '0x0L'] ['0x0L', '0x0L', '0x0L', '0x0L', '0x0L'] ['0x0L', '0x0L', '0x0L', '0x0L', '0x0L'] <...> Current value of state: Satus end of round #24/24 ['0xf1258f7940e1dde7L', '0x84d5ccf933c0478aL', '0xd598261ea65aa9eeL', '0xbd1547306f80494dL', '0x8b284e056253d057L'] ['0xff97a42d7f8e6fd4L', '0x90fee5a0a44647c4L', '0x8c5bda0cd6192e76L', '0xad30a6f71b19059cL', '0x30935ab7d08ffc64L'] ['0xeb5aa93f2317d635L', '0xa9a6e6260d712103L', '0x81a57c16dbcf555fL', '0x43b831cd0347c826L', '0x1f22f1a11a5569fL'] ['0x5e5635a21d9ae61L', '0x64befef28cc970f2L', '0x613670957bc46611L', '0xb87c5a554fd00ecbL', '0x8c3ee88a1ccf32c8L'] ['0x940c7922ae3a2614L', '0x1841f924a2c509e4L', '0x16f53526e70465c2L', '0x75f644e97f30a13bL', '0xeaf1ff7b5ceca249L']
[[17376452488221285863L, 18417369716475457492L, 16959053435453822517L, 424854978622500449L, 10668034807192757780L], [9571781953733 019530L, 10448040663659726788L, 12224711289652453635L, 7259519967065370866L, 1747952066141424100L], [15391093639620504046L, 101139 17136857017974L, 9342009439668884831L, 7004910057750291985L, 1654286879329379778L], [13624874521033984333L, 12479658147685402012L, 4879704952849025062L, 13293599522548616907L, 8500057116360352059L], [10027350355371872343L, 3500241080921619556L, 140226327413610 143L, 10105770293752443592L, 16929593379567477321L]]