Welcome to mirror list, hosted at ThFree Co, Russian Federation.

gitlab.com/quite/humla-spongycastle.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'prov/src/main/java/org/bouncycastle/jce/ECPointUtil.java')
-rw-r--r--prov/src/main/java/org/bouncycastle/jce/ECPointUtil.java56
1 files changed, 0 insertions, 56 deletions
diff --git a/prov/src/main/java/org/bouncycastle/jce/ECPointUtil.java b/prov/src/main/java/org/bouncycastle/jce/ECPointUtil.java
deleted file mode 100644
index 5ff966a2..00000000
--- a/prov/src/main/java/org/bouncycastle/jce/ECPointUtil.java
+++ /dev/null
@@ -1,56 +0,0 @@
-package org.bouncycastle.jce;
-
-import java.security.spec.ECFieldF2m;
-import java.security.spec.ECFieldFp;
-import java.security.spec.ECPoint;
-import java.security.spec.EllipticCurve;
-
-import org.bouncycastle.math.ec.ECCurve;
-
-/**
- * Utility class for handling EC point decoding.
- */
-public class ECPointUtil
-{
- /**
- * Decode a point on this curve which has been encoded using point
- * compression (X9.62 s 4.2.1 and 4.2.2) or regular encoding.
- *
- * @param curve
- * The elliptic curve.
- * @param encoded
- * The encoded point.
- * @return the decoded point.
- */
- public static ECPoint decodePoint(
- EllipticCurve curve,
- byte[] encoded)
- {
- ECCurve c = null;
-
- if (curve.getField() instanceof ECFieldFp)
- {
- c = new ECCurve.Fp(
- ((ECFieldFp)curve.getField()).getP(), curve.getA(), curve.getB());
- }
- else
- {
- int k[] = ((ECFieldF2m)curve.getField()).getMidTermsOfReductionPolynomial();
-
- if (k.length == 3)
- {
- c = new ECCurve.F2m(
- ((ECFieldF2m)curve.getField()).getM(), k[2], k[1], k[0], curve.getA(), curve.getB());
- }
- else
- {
- c = new ECCurve.F2m(
- ((ECFieldF2m)curve.getField()).getM(), k[0], curve.getA(), curve.getB());
- }
- }
-
- org.bouncycastle.math.ec.ECPoint p = c.decodePoint(encoded);
-
- return new ECPoint(p.getAffineXCoord().toBigInteger(), p.getAffineYCoord().toBigInteger());
- }
-}