diff options
Diffstat (limited to 'core/src/main/java/org/spongycastle/math/ec/WNafPreCompInfo.java')
-rw-r--r-- | core/src/main/java/org/spongycastle/math/ec/WNafPreCompInfo.java | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/math/ec/WNafPreCompInfo.java b/core/src/main/java/org/spongycastle/math/ec/WNafPreCompInfo.java new file mode 100644 index 00000000..2eaea940 --- /dev/null +++ b/core/src/main/java/org/spongycastle/math/ec/WNafPreCompInfo.java @@ -0,0 +1,56 @@ +package org.spongycastle.math.ec; + +/** + * Class holding precomputation data for the WNAF (Window Non-Adjacent Form) + * algorithm. + */ +public class WNafPreCompInfo implements PreCompInfo +{ + /** + * Array holding the precomputed <code>ECPoint</code>s used for a Window + * NAF multiplication. + */ + protected ECPoint[] preComp = null; + + /** + * Array holding the negations of the precomputed <code>ECPoint</code>s used + * for a Window NAF multiplication. + */ + protected ECPoint[] 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 twice = null; + + public ECPoint[] getPreComp() + { + return preComp; + } + + public void setPreComp(ECPoint[] preComp) + { + this.preComp = preComp; + } + + public ECPoint[] getPreCompNeg() + { + return preCompNeg; + } + + public void setPreCompNeg(ECPoint[] preCompNeg) + { + this.preCompNeg = preCompNeg; + } + + public ECPoint getTwice() + { + return twice; + } + + public void setTwice(ECPoint twice) + { + this.twice = twice; + } +} |