Andrew Kozlik
10e0a90cb6
Fix possible shift overflow UB in unbitslice()
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Fixes #36
Signed-off-by: Daan Sprenkels <daan@dsprenkels.com >
2020-08-25 14:57:12 +02:00
Daan Sprenkels
b613717c2b
hazmat: remove SHA256 decl.
2017-08-03 19:27:21 +07:00
Daan Sprenkels
5f6a1fbbff
hazmat: Use randombytes instead of SHAKE256
2017-07-10 18:30:53 +08:00
Daan Sprenkels
6da0abfd83
Remove inline declarations
2017-07-07 14:49:40 +08:00
Daan Sprenkels
5ad67a192b
Change sss_Keyshare type to uint8_t[33]
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This change is introduced, because this makes it a lot easier to
expose the API the other languages that do not support C structs.
This is a break in the API contract for the `hazmat.h` module.
No API changes have been introduced in the `sss.c` module so all
current language bindings should be okay.
2017-07-06 10:57:32 +08:00
Daan Sprenkels
0ddc34c662
Merge branch 'master' into internal_serde
2017-06-13 16:34:14 +02:00
Daan Sprenkels
7ea08e7f5f
Merge branch 'travis'
2017-06-13 16:32:20 +02:00
Daan Sprenkels
b42869cc34
Move serde functions out of their own module
2017-06-13 16:01:56 +02:00
Daan Sprenkels
b835557e39
Optimize gf256_inv
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This commit slightly optimizes the `gf256_inv` function. It now
uses some temporary (bitsliced) registers allowing us to shave off
two GF(2^8) multiplications. This does not really matter in the
long (~2%), but after having implemented it, it feels strange *not*
to submit it.
2017-06-04 18:20:21 +02:00
Daan Sprenkels
954c43bb8a
Merge branch 'builtin-random' into travis
2017-05-13 21:08:25 +02:00
Daan Sprenkels
acdc769e29
Add separate randombytes module
2017-05-13 21:05:24 +02:00
Daan Sprenkels
cc2dc7c509
hazmat.c: eliminated one 256 bit variable
2017-05-13 13:04:53 +02:00
Daan Sprenkels
e1cf7e6b71
Add some docs to C code
2017-05-12 12:10:39 +02:00
Daan Sprenkels
fe0627959f
Increase optimization level
2017-05-12 12:10:25 +02:00
Daan Sprenkels
d058b3a453
Optimize away memset in gf256_mul
2017-05-12 11:06:32 +02:00
Daan Sprenkels
39491f82c0
Inline hot functions in hazmat.c
2017-05-12 11:02:45 +02:00
Daan Sprenkels
2e884f5f28
Implement squaring in gf2^8
2017-05-12 10:39:57 +02:00
Daan Sprenkels
8dbd19496b
Implement bitsliced keysharing
2017-05-11 19:22:09 +02:00
Daan Sprenkels
35cf931c00
Revert "Temporarily replace randombytes with user supplied buf"
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This reverts commit c713515597
2017-05-08 14:14:14 +02:00
Daan Sprenkels
ebf5d1bca5
Replace int-mult by mask op in gf256 multiplication
2017-05-08 13:46:13 +02:00
Daan Sprenkels
23f96d00e1
Reduce the amount of generated random bytes
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This commit optimized the generation of key shares by letting
the SKAHE256 PRF only generate the exact amount of random bytes
that is needed.
2017-04-25 17:54:40 +02:00
Daan Sprenkels
c713515597
Temporarily replace randombytes with user supplied buf
2017-04-14 09:53:24 +02:00
Daan Sprenkels
4777684ece
Remove some unnecessary includes
2017-04-13 22:10:28 +02:00
Daan Sprenkels
8819494e86
Substitute {SSS => sss}
2017-04-13 21:57:03 +02:00
Daan Sprenkels
a32f3fd149
Add implementation of high level API
2017-04-13 16:20:13 +02:00
Daan Sprenkels
f3ca3bd574
Add separate randombytes module
2017-04-13 13:15:49 +02:00
Daan Sprenkels
41ff9bc7fe
Revert "Add travis-ci config file"
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Travis does not seem to work with the getrandom system
call yet. We should probably look into this later.
This reverts commit 137fa98b92
2017-04-12 09:21:50 +02:00
Daan Sprenkels
137fa98b92
Add travis-ci config file
2017-04-11 20:02:55 +02:00
Daan Sprenkels
53b0e218c7
Finish low level API prototype
2017-04-11 19:09:12 +02:00
Daan Sprenkels
ed25e5ff4e
[wip] Implement sharing/combining for byte secrets
2017-04-09 20:56:07 +02:00
