threefish

Java implementation of Threefish ver 1.3 encryption algorithm for Bouncycastle

Threefish is tweakable block encryption algorithm designed by Bruce Schneier, Niels Ferguson, Stefan Lucks, Doug Whiting, Mihir Bellare, Tadayoshi Kohno, Jon Callas, and Jesse Walker.

Currently Threefish is part of Skein hash function.

Specification

Specification of Threefish is available only as part of Skein specification: skein.pdf

Download 

All sourcecode you can find on GitHub

Warning! Threefish algorithm is not sufficiently well controlled by the community.
Do not use it in production.

Contact

Contact with author of implementation:

Test vectors 

Extracted from NIST submission package

Block size: 256 bits

a.

key 
0000000000000000000000000000000000000000000000000000000000000000
tweak 
00000000000000000000000000000000
m 
0000000000000000000000000000000000000000000000000000000000000000
c 
84da2a1f8beaee947066ae3e3103f1ad536db1f4a1192495116b9f3ce6133fd8

b.

key 
101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f
tweak 
000102030405060708090a0b0c0d0e0f
m 
FFFEFDFCFBFAF9F8F7F6F5F4F3F2F1F0EFEEEDECEBEAE9E8E7E6E5E4E3E2E1E0
c 
e0d091ff0eea8fdfc98192e62ed80ad59d865d08588df476657056b5955e97df

Block size: 512 bits

a.

key 
0000000000000000000000000000000000000000000000000000000000000000

0000000000000000000000000000000000000000000000000000000000000000
tweak 
00000000000000000000000000000000
m 
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
c 
b1a2bbc6ef6025bc40eb3822161f36e375d1bb0aee3186fbd19e47c5d479947b
7bc2f8586e35f0cff7e7f03084b0b7b1f1ab3961a580a3e97eb41ea14a6d7bbe

b.

key 
101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f
303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f
tweak 
000102030405060708090a0b0c0d0e0f
m 
fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e0
dfdedddcdbdad9d8d7d6d5d4d3d2d1d0cfcecdcccbcac9c8c7c6c5c4c3c2c1c0
c 
e304439626d45a2cb401cad8d636249a6338330eb06d45dd8b36b90e97254779
272a0a8d99463504784420ea18c9a725af11dffea10162348927673d5c1caf3d

Block size: 1024 bits

a.

key 
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
tweak 
00000000000000000000000000000000
m 
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000
c 
f05c3d0a3d05b304f785ddc7d1e036015c8aa76e2f217b06c6e1544c0bc1a90d
f0accb9473c24e0fd54fea68057f43329cb454761d6df5cf7b2e9b3614fbd5a2
0b2e4760b40603540d82eabc5482c171c832afbe68406bc39500367a592943fa
9a5b4a43286ca3c4cf46104b443143d560a4b230488311df4feef7e1dfe8391e

b.

key 
101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f
303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f
505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f
707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f
tweak 
000102030405060708090a0b0c0d0e0f
m 
fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e0
dfdedddcdbdad9d8d7d6d5d4d3d2d1d0cfcecdcccbcac9c8c7c6c5c4c3c2c1c0
bfbebdbcbbbab9b8b7b6b5b4b3b2b1b0afaeadacabaaa9a8a7a6a5a4a3a2a1a0
9f9e9d9c9b9a999897969594939291908f8e8d8c8b8a89888786858483828180
c 
a6654ddbd73cc3b05dd777105aa849bce49372eaaffc5568d254771bab85531c
94f780e7ffaae430d5d8af8c70eebbe1760f3b42b737a89cb363490d670314bd
8aa41ee63c2e1f45fbd477922f8360b388d6125ea6c7af0ad7056d01796e90c8
3313f4150a5716b30ed5f569288ae974ce2b4347926fce57de44512177dd7cde
 
Comments