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copy constructor for Ed22519

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orignal 2015-11-26 13:31:30 -05:00
parent 56453f6b5c
commit d169471e8c
2 changed files with 24 additions and 9 deletions
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23
Signature.h
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@ -373,6 +373,8 @@ namespace crypto
BIGNUM * x, * y;
BIGNUM * z, * t; // projective coordinates
EDDSAPoint (): x(nullptr), y(nullptr), z(nullptr), t(nullptr) {};
EDDSAPoint (const EDDSAPoint& other): x(nullptr), y(nullptr), z(nullptr), t(nullptr)
{ *this = other; };
EDDSAPoint (EDDSAPoint&& other): x(nullptr), y(nullptr), z(nullptr), t(nullptr)
{ *this = std::move (other); };
EDDSAPoint (BIGNUM * x1, BIGNUM * y1, BIGNUM * z1 = nullptr, BIGNUM * t1 = nullptr): x(x1), y(y1), z(z1), t(t1) {};
@ -380,17 +382,22 @@ namespace crypto
EDDSAPoint& operator=(EDDSAPoint&& other)
{
if (x) BN_free (x);
if (y) BN_free (y);
if (z) BN_free (z);
if (t) BN_free (t);
x = other.x; other.x = nullptr;
y = other.y; other.y = nullptr;
z = other.z; other.z = nullptr;
t = other.t; other.t = nullptr;
if (x) BN_free (x); x = other.x; other.x = nullptr;
if (y) BN_free (y); y = other.y; other.y = nullptr;
if (z) BN_free (z); z = other.z; other.z = nullptr;
if (t) BN_free (t); t = other.t; other.t = nullptr;
return *this;
}
EDDSAPoint& operator=(const EDDSAPoint& other)
{
if (x) BN_free (x); x = other.x ? BN_dup (other.x) : nullptr;
if (y) BN_free (y); y = other.y ? BN_dup (other.y) : nullptr;
if (z) BN_free (z); z = other.z ? BN_dup (other.z) : nullptr;
if (t) BN_free (t); t = other.t ? BN_dup (other.t) : nullptr;
return *this;
}
EDDSAPoint operator-() const
{
BIGNUM * x1 = NULL, * y1 = NULL, * z1 = NULL, * t1 = NULL;