deon/gnuk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fix bn.c.

Browse Source
This commit is contained in:
NIIBE Yutaka
2019-06-18 11:10:33 +09:00
parent cc0d59cfe6
commit 9180c35420
2 changed files with 15 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
ChangeLog
View File

@@ -1,3 +1,7 @@
2019-06-18 NIIBE Yutaka <gniibe@fsij.org>
* src/bn.c (bn256_random): More portable.
2019-04-03 NIIBE Yutaka <gniibe@fsij.org> 2019-04-03 NIIBE Yutaka <gniibe@fsij.org>
* tests: Factor out tests into classes. * tests: Factor out tests into classes.

23
src/bn.c
View File

@@ -1,7 +1,8 @@
/* /*
* bn.c -- 256-bit (and 512-bit) bignum calculation * bn.c -- 256-bit (and 512-bit) bignum calculation
* *
* Copyright (C) 2011, 2013, 2014 Free Software Initiative of Japan * Copyright (C) 2011, 2013, 2014, 2019
* Free Software Initiative of Japan
* Author: NIIBE Yutaka <gniibe@fsij.org> * Author: NIIBE Yutaka <gniibe@fsij.org>
* *
* This file is a part of Gnuk, a GnuPG USB Token implementation. * This file is a part of Gnuk, a GnuPG USB Token implementation.
@@ -412,17 +413,15 @@ bn256_cmp (const bn256 *A, const bn256 *B)
void void
bn256_random (bn256 *X) bn256_random (bn256 *X)
{ {
const uint8_t *rand = random_bytes_get (); int i, j;
const uint8_t *rand;
X->word[7] = ((uint32_t *)rand)[7]; for (i = 0; i < 256/256; i++)
X->word[6] = ((uint32_t *)rand)[6]; {
X->word[5] = ((uint32_t *)rand)[5]; rand = random_bytes_get ();
X->word[4] = ((uint32_t *)rand)[4]; for (j = 0; j < BN256_WORDS; j++)
X->word[3] = ((uint32_t *)rand)[3]; X->word[i*BN256_WORDS+j] = ((uint32_t *)rand)[j];
X->word[2] = ((uint32_t *)rand)[2]; random_bytes_free (rand);
X->word[1] = ((uint32_t *)rand)[1]; }
X->word[0] = ((uint32_t *)rand)[0];
random_bytes_free (rand);
} }
#endif #endif