| java.lang.Object
 org.bouncycastle.math.ec.WNafMultiplier
| WNafMultiplier | | class WNafMultiplier implements ECMultiplier(Code) | | Class implementing the WNAF (Window Non-Adjacent Form) multiplication
algorithm.
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| Method Summary | |
| public ECPoint | multiply(ECPoint p, BigInteger k, PreCompInfo preCompInfo)
Multiplies this by an integer k using the
Window NAF method.
Parameters:
k - The integer by which this is multiplied. | | public byte[] | windowNaf(byte width, BigInteger k)
Computes the Window NAF (non-adjacent Form) of an integer.
Parameters:
width - The width w of the Window NAF. |
| multiply | | public ECPoint multiply(ECPoint p, BigInteger k, PreCompInfo preCompInfo)(Code) | | Multiplies this by an integer k using the
Window NAF method.
Parameters:
k - The integer by which this is multiplied. A new ECPoint which equals thismultiplied by k. |
| windowNaf | | public byte[] windowNaf(byte width, BigInteger k)(Code) | | Computes the Window NAF (non-adjacent Form) of an integer.
Parameters:
width - The width w of the Window NAF. The width isdefined as the minimal number w, such that for anyw consecutive digits in the resulting representation, atmost one is non-zero.
Parameters:
k - The integer of which the Window NAF is computed. The Window NAF of the given width, such that the following holds:k = ∑i=0l-1 ki2i, where the ki denote the elements of thereturned byte[]. |
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