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try fixing leak

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This commit is contained in:
Jeff Becker 2017-09-27 09:05:52 -04:00
parent eabeeaccfe
commit c0bcab8bc5
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GPG Key ID: F357B3B42F6F9B05
1 changed files with 2 additions and 2 deletions
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4
libi2pd/Signature.cpp
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@ -316,7 +316,6 @@ namespace crypto
bool IsOnCurve (const EDDSAPoint& p, BN_CTX * ctx) const
{
BN_CTX_start (ctx);
BIGNUM * x2 = BN_CTX_get (ctx), * y2 = BN_CTX_get (ctx), * tmp = BN_CTX_get (ctx);
BN_sqr (x2, p.x, ctx); // x^2
BN_sqr (y2, p.y, ctx); // y^2
@ -353,6 +352,7 @@ namespace crypto
BN_mod_mul (x, x, I, q, ctx);
if (BN_is_odd (x))
BN_sub (x, q, x);
return x;
}
@ -370,7 +370,7 @@ namespace crypto
buf1[0] &= 0x7f; // clear highest bit
BIGNUM * y = BN_new ();
BN_bin2bn (buf1, EDDSA25519_PUBLIC_KEY_LENGTH, y);
auto x = RecoverX (y, ctx);
BIGNUM * x = RecoverX (y, ctx);
if (BN_is_bit_set (x, 0) != isHighestBitSet)
BN_sub (x, q, x); // x = q - x
BIGNUM * z = BN_new (), * t = BN_new ();