90 lines
2.3 KiB
C#
90 lines
2.3 KiB
C#
|
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
||
|
|
#pragma warning disable
|
||
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Class holding precomputation data for the WNAF (Window Non-Adjacent Form)
|
||
|
|
* algorithm.
|
||
|
|
*/
|
||
|
|
public class WNafPreCompInfo
|
||
|
|
: PreCompInfo
|
||
|
|
{
|
||
|
|
internal volatile int m_promotionCountdown = 4;
|
||
|
|
|
||
|
|
protected int m_confWidth = -1;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Array holding the precomputed <code>ECPoint</code>s used for a Window
|
||
|
|
* NAF multiplication.
|
||
|
|
*/
|
||
|
|
protected ECPoint[] m_preComp = null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Array holding the negations of the precomputed <code>ECPoint</code>s used
|
||
|
|
* for a Window NAF multiplication.
|
||
|
|
*/
|
||
|
|
protected ECPoint[] m_preCompNeg = null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Holds an <code>ECPoint</code> representing Twice(this). Used for the
|
||
|
|
* Window NAF multiplication to create or extend the precomputed values.
|
||
|
|
*/
|
||
|
|
protected ECPoint m_twice = null;
|
||
|
|
|
||
|
|
protected int m_width = -1;
|
||
|
|
|
||
|
|
internal int DecrementPromotionCountdown()
|
||
|
|
{
|
||
|
|
int t = m_promotionCountdown;
|
||
|
|
if (t > 0)
|
||
|
|
{
|
||
|
|
m_promotionCountdown = --t;
|
||
|
|
}
|
||
|
|
return t;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal int PromotionCountdown
|
||
|
|
{
|
||
|
|
get { return m_promotionCountdown; }
|
||
|
|
set { this.m_promotionCountdown = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual bool IsPromoted
|
||
|
|
{
|
||
|
|
get { return m_promotionCountdown <= 0; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual int ConfWidth
|
||
|
|
{
|
||
|
|
get { return m_confWidth; }
|
||
|
|
set { this.m_confWidth = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual ECPoint[] PreComp
|
||
|
|
{
|
||
|
|
get { return m_preComp; }
|
||
|
|
set { this.m_preComp = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual ECPoint[] PreCompNeg
|
||
|
|
{
|
||
|
|
get { return m_preCompNeg; }
|
||
|
|
set { this.m_preCompNeg = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual ECPoint Twice
|
||
|
|
{
|
||
|
|
get { return m_twice; }
|
||
|
|
set { this.m_twice = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public virtual int Width
|
||
|
|
{
|
||
|
|
get { return m_width; }
|
||
|
|
set { this.m_width = value; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#pragma warning restore
|
||
|
|
#endif
|