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secp256k1
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Merge pull request #245 

c146b4a Add bench_internal to gitignore. (Gregory Maxwell)
9c4fb23 Add a secp256k1_fe_cmov unit test. (Gregory Maxwell)
This commit is contained in:
Pieter Wuille 2015-04-22 12:54:10 -07:00
parent 61c1b1ed46 c146b4a446
commit 22f60a6280
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2 changed files with 13 additions and 2 deletions
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1
.gitignore vendored
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@ -2,6 +2,7 @@ bench_inv
bench_sign
bench_verify
bench_recover
bench_internal
tests
*.exe
*.so

14
src/tests.c
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@ -1,5 +1,5 @@
/**********************************************************************
* Copyright (c) 2013, 2014 Pieter Wuille *
* Copyright (c) 2013, 2014, 2015 Pieter Wuille, Gregory Maxwell *
* Distributed under the MIT software license, see the accompanying *
* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
**********************************************************************/
@ -753,12 +753,22 @@ void run_field_misc(void) {
CHECK(secp256k1_fe_equal_var(&x, &x));
z = x;
secp256k1_fe_add(&z,&y);
secp256k1_fe_normalize(&z);
/* Test fe conditional move; z is not normalized here. */
q = x;
secp256k1_fe_cmov(&x, &z, 0);
secp256k1_fe_cmov(&x, &x, 1);
CHECK(memcmp(&x, &z, sizeof(x)) != 0);
CHECK(memcmp(&x, &q, sizeof(x)) == 0);
secp256k1_fe_cmov(&q, &z, 1);
CHECK(memcmp(&q, &z, sizeof(q)) == 0);
/* Test storage conversion and conditional moves. */
secp256k1_fe_normalize(&z);
CHECK(!secp256k1_fe_equal_var(&x, &z));
secp256k1_fe_to_storage(&xs, &x);
secp256k1_fe_to_storage(&ys, &y);
secp256k1_fe_to_storage(&zs, &z);
secp256k1_fe_storage_cmov(&zs, &xs, 0);
secp256k1_fe_storage_cmov(&zs, &zs, 1);
CHECK(memcmp(&xs, &zs, sizeof(xs)) != 0);
secp256k1_fe_storage_cmov(&ys, &xs, 1);
CHECK(memcmp(&xs, &ys, sizeof(xs)) == 0);