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This commit is contained in:
Frank Denis 2017-12-13 10:24:13 +01:00
parent a1d438c8ba
commit 675149b9b8
1 changed files with 5 additions and 0 deletions
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5
src/libsodium/crypto_scalarmult/curve25519/ref10/x25519_ref10.c
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@ -8,6 +8,11 @@
#include "utils.h" #include "utils.h"
#include "x25519_ref10.h" #include "x25519_ref10.h"
/*
* Reject small order points early to mitigate the implications of
* unexpected optimizations that would affect the ref10 code.
* See https://eprint.iacr.org/2017/806.pdf for reference.
*/
static int static int
has_small_order(const unsigned char s[32]) has_small_order(const unsigned char s[32])
{ {