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Avoid partial array initialization

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This commit is contained in:
Frank Denis 2019-01-05 22:58:07 +01:00
parent b7cb241eb9
commit 531b545578
1 changed files with 4 additions and 2 deletions
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6
src/libsodium/crypto_core/ed25519/core_ed25519.c
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@ -137,9 +137,11 @@ void
crypto_core_ed25519_scalar_add(unsigned char *z, const unsigned char *x,
const unsigned char *y)
{
unsigned char x_[crypto_core_ed25519_NONREDUCEDSCALARBYTES] = { 0U };
unsigned char y_[crypto_core_ed25519_NONREDUCEDSCALARBYTES] = { 0U };
unsigned char x_[crypto_core_ed25519_NONREDUCEDSCALARBYTES];
unsigned char y_[crypto_core_ed25519_NONREDUCEDSCALARBYTES];
memset(x_, 0, sizeof x_);
memset(y_, 0, sizeof y_);
memcpy(x_, x, crypto_core_ed25519_SCALARBYTES);
memcpy(y_, y, crypto_core_ed25519_SCALARBYTES);
sodium_add(x_, y_, crypto_core_ed25519_SCALARBYTES);