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Author SHA1 Message Date
Frank Denis
0a20032a8f KNF 2017-11-06 02:00:32 +01:00
Frank Denis
a5b9c381e5 Shrink x25519_donna_c64; reuse functions from core 2017-11-06 01:57:05 +01:00
Frank Denis
1947a49020 Symbolically clear the round keys after aes256gcm_(en|de)crypt() 
Fixes #617
 2017-11-05 23:46:55 +01:00
Frank Denis
820bf58b93 Reduce the diff between fe_25_5/fe.h and fe_51/fe.h 2017-11-05 21:27:53 +01:00
Frank Denis
f49dd35fdf Update paths 2017-11-05 18:26:25 +01:00
Frank Denis
bfd656b67b core/25519: Use 51-bit limbs on platforms supporting 128 bit arithmetic 2017-11-05 17:50:15 +01:00
Frank Denis
bd82e08337 Move 25.5 bit field arithmetic to ref10/fe_25_5 2017-11-05 17:35:22 +01:00
Frank Denis
5cde320a08 Add pwhash functions to non-sumo wasm builds 
Server relief is important.
 2017-11-05 13:44:29 +01:00
Frank Denis
9f71f5aade Ed25519 synthetic nonces: pad to 128 bytes boundaries, not 16. 
Spotted by Trevor Perrin. Good catch, thanks!
 2017-11-04 09:53:44 +01:00
Frank Denis
e52ab67322 Detect ctgrind 2017-11-03 17:15:02 +01:00
Frank Denis
b45d52a8cf Tolerate sodium_crit_leave() to be called on an unlocked mutex 2017-11-03 15:46:19 +01:00
Frank Denis
8e364d29db Move d2 definition close to the d definition 2017-11-01 19:38:16 +01:00
Frank Denis
f57fcb9c26 Use the correct type for the cmov mask 2017-11-01 19:37:34 +01:00
Frank Denis
8d5b6b1fc9 Leave and immediately reenter the critical section in sodium_misuse() 
Keep running everything in the critical section from there.
 2017-11-01 01:45:02 +01:00
Frank Denis
802830e4e6 Regen precomputation tables 2017-11-01 00:08:34 +01:00
Frank Denis
a366ea0839 Tidy up curve25519_ref10, remove comments that are not relevant any more 2017-10-31 20:22:48 +01:00
Frank Denis
a3f96045d4 Remove ge_scalarmult_vartime() which is not used any more 2017-10-31 16:10:51 +01:00
Frank Denis
0b734963db edwards25519sha512batch_open(): check order before decoding instead of after 2017-10-31 16:09:43 +01:00
Frank Denis
1cd0633186 Accept non-canonical PKs if ED25519_COMPAT is defined 2017-10-31 16:08:45 +01:00
Frank Denis
5808b83092 ed25519_open(): reject all small order public keys and non-canonical representations 2017-10-31 16:07:01 +01:00
Frank Denis
ce56bb596f edwards25519sha512batch: reuse ge_scalarmult() 
Check public key and R order by the way.
 2017-10-31 15:56:31 +01:00
Frank Denis
52fce922f4 Add constant-time edx recovery; use it in ed25519_scalarmult() 2017-10-31 15:41:40 +01:00
Frank Denis
5468c39d7d Don't hardcode the number of rounds 2017-10-28 21:36:01 +02:00
Michael Ellery
5dcf78a14c CMake find module fixes for static linking: (#621) 
Enclose option() declaration in a defined check to allow simple caller
set() use case. Provide default static lib name for find_library since
pkgconfig for libsodium currently does not provide it.
 2017-10-27 22:01:20 +02:00
Frank Denis
68d8e33a55 blake2: use the same code on little & big endian for finalization 2017-10-24 22:35:23 +02:00
Frank Denis
5935cf7a7e Use uint instead of uint64_t for SHA* padding 
Workaround for a clang bug
 2017-10-24 21:57:30 +02:00
Frank Denis
58fa4172a5 Use the output buffer as a temporary buffer to store clamped private scalars 
This might help avoid leaving a copy of the scalar on the stack.

Also use the same parameters names in donna as other implementations.
Maybe not the best possible names, but at least, things are consistent.
 2017-10-24 17:41:32 +02:00
Frank Denis
e254a654dc Return -1 is the scalar was zero 
This realistically only happen on misuse or with a completely broken PRG.

Calling misuse() would be a bit too intrusive here. So, we still store
the result (might be better than uninitialized memory if the application
doesn't check the return code), but return -1.
 2017-10-24 17:25:37 +02:00
Frank Denis
c150ceb677 Clear the high bit the same way everywhere 2017-10-24 17:10:16 +02:00
Frank Denis
7e75ad4ca9 Remove unused var 2017-10-23 23:43:19 +02:00
Frank Denis
134eb2c29d Add a comment on scalarmult usage 2017-10-23 16:27:04 +02:00
Frank Denis
8996c7d53d Regen emscripten symbols 2017-10-23 16:13:01 +02:00
Frank Denis
f5076db5f8 Do not include scalarmult_ed25519 in minimal builds 2017-10-23 16:12:06 +02:00
Frank Denis
b5797ec61f Add scalarmult_ed25519_base, correct is_canonical() test, add clamping helper, 
check that the result of scalarmult_ed25519() is not the point at infinity
 2017-10-23 15:36:40 +02:00
Frank Denis
d3cce09f4e Update prototype (fe_isnonzero() -> fe_iszero()) 2017-10-23 15:35:20 +02:00
Frank Denis
f1e9acef5c Rename crypto_sign_ed25519_scalarmult() to crypto_scalarmult_ed25519() 2017-10-23 13:22:34 +02:00
Frank Denis
89bc2d6976 *_is_less_than_*() -> *_is_canonical() 
and reject non-canonical public keys in ed25519_scalarmult()
 2017-10-23 01:09:38 +02:00
Frank Denis
15649c5849 + ge_is_less_than_p() 2017-10-23 00:00:25 +02:00
Frank Denis
9acbc82a6d Comment 2017-10-22 23:00:37 +02:00
Frank Denis
7ae346a54a Order 2017-10-22 21:17:03 +02:00
Frank Denis
afabd7e738 Remove neg parameter; always check with both signs; adjust blacklist 2017-10-22 20:59:54 +02:00
Frank Denis
d0e009e59d Merge branch 'master' of github.com:jedisct1/libsodium 
* 'master' of github.com:jedisct1/libsodium:
  disable ssp/pie for emscripten
 2017-10-22 17:45:05 +02:00
Frank Denis
0b835b4479 + ge_is_on_curve() 2017-10-22 17:44:51 +02:00
Frank Denis
a84d222d07 disable ssp/pie for emscripten 2017-10-22 01:55:28 +02:00
Frank Denis
88417977e3 Move a couple functions from crypto_sign to crypto_core/curve25519 
This improves clarity and makes it easier to reuse these in a
different context.

Also change fe_isnonzero() to fe_zero() and make it work as
documented.
 2017-10-21 21:24:25 +02:00
Frank Denis
9fc0ece3d9 Remove unused blake2b code 2017-10-21 20:00:56 +02:00
Frank Denis
3d374fe8a9 Define uint128_t only once in private/common.h 2017-10-21 19:59:16 +02:00
Frank Denis
58fc2dcf5b Add crypto_sign_ed25519_scalarmult to emscripten symbols 2017-10-21 19:00:54 +02:00
Frank Denis
5a6deebd39 Add an argument to ed25519_small_order to optionally invert the sign 2017-10-20 16:07:52 +02:00
Frank Denis
30ad01bdba memcpy() -> memmove() in case the seed and secret key overlap 2017-10-20 09:55:00 +02:00