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use BN_CTX_start and BN_CTX_end instead of removing BN_CTX_start

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This commit is contained in:
Jeff Becker 2017-09-27 09:49:43 -04:00
parent acde10b46e
commit 7fb2d13a8b
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GPG Key ID: F357B3B42F6F9B05
1 changed files with 2 additions and 1 deletions
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libi2pd/Signature.cpp
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@ -316,6 +316,7 @@ 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
@ -352,7 +353,7 @@ namespace crypto
BN_mod_mul (x, x, I, q, ctx);
if (BN_is_odd (x))
BN_sub (x, q, x);
BN_CTX_end (ctx);
return x;
}