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Force to zero the buffer used to generate the DH private key.

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John Safranek
2018-04-27 15:46:21 -07:00
parent 6a31f103aa
commit 4dacd31ea4
1 changed files with 2 additions and 0 deletions
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2
wolfcrypt/src/dh.c
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@@ -1081,6 +1081,7 @@ static int GeneratePrivateDh186(DhKey* key, WC_RNG* rng, byte* priv,
} }
} while (mp_cmp_d(&tmpX, 1) != MP_GT); } while (mp_cmp_d(&tmpX, 1) != MP_GT);
ForceZero(cBuf, cSz);
XFREE(cBuf, key->heap, DYNAMIC_TYPE_TMP_BUFFER); XFREE(cBuf, key->heap, DYNAMIC_TYPE_TMP_BUFFER);
/* tmpQ = q - 1 */ /* tmpQ = q - 1 */
@@ -1110,6 +1111,7 @@ static int GeneratePrivateDh186(DhKey* key, WC_RNG* rng, byte* priv,
} }
} }
mp_forcezero(&tmpX);
mp_clear(&tmpX); mp_clear(&tmpX);
mp_clear(&tmpQ); mp_clear(&tmpQ);