Add utility methods for converting EC_Params to JCE EC objects.

2 files changed, 90 insertions, 0 deletions

diff --git a/src/cz/crcs/ectester/common/ec/RawECPrivateKey.java b/src/cz/crcs/ectester/common/ec/RawECPrivateKey.java
new file mode 100644
index 0000000..f4556a0
--- /dev/null
+++ b/src/cz/crcs/ectester/common/ec/RawECPrivateKey.java
@@ -0,0 +1,45 @@
+package cz.crcs.ectester.common.ec;
+
+import cz.crcs.ectester.common.util.ECUtil;
+
+import java.math.BigInteger;
+import java.security.interfaces.ECPrivateKey;
+import java.security.spec.ECParameterSpec;
+
+/**
+ * @author Jan Jancar johny@neuromancer.sk
+ */
+public class RawECPrivateKey implements ECPrivateKey {
+    private BigInteger scalar;
+    private ECParameterSpec params;
+
+    public RawECPrivateKey(BigInteger scalar, ECParameterSpec params) {
+        this.scalar = scalar;
+        this.params = params;
+    }
+
+    @Override
+    public BigInteger getS() {
+        return scalar;
+    }
+
+    @Override
+    public String getAlgorithm() {
+        return "EC";
+    }
+
+    @Override
+    public String getFormat() {
+        return "Raw";
+    }
+
+    @Override
+    public byte[] getEncoded() {
+        return ECUtil.toByteArray(scalar, params.getOrder().bitLength());
+    }
+
+    @Override
+    public ECParameterSpec getParams() {
+        return params;
+    }
+}
diff --git a/src/cz/crcs/ectester/common/ec/RawECPublicKey.java b/src/cz/crcs/ectester/common/ec/RawECPublicKey.java
new file mode 100644
index 0000000..f09feef
--- /dev/null
+++ b/src/cz/crcs/ectester/common/ec/RawECPublicKey.java
@@ -0,0 +1,45 @@
+package cz.crcs.ectester.common.ec;
+
+import cz.crcs.ectester.common.util.ECUtil;
+
+import java.security.interfaces.ECPublicKey;
+import java.security.spec.ECParameterSpec;
+import java.security.spec.ECPoint;
+
+/**
+ * @author Jan Jancar johny@neuromancer.sk
+ */
+public class RawECPublicKey implements ECPublicKey {
+    private ECPoint point;
+    private ECParameterSpec params;
+
+    public RawECPublicKey(ECPoint point, ECParameterSpec params) {
+        this.point = point;
+        this.params = params;
+    }
+
+    @Override
+    public ECPoint getW() {
+        return point;
+    }
+
+    @Override
+    public String getAlgorithm() {
+        return "EC";
+    }
+
+    @Override
+    public String getFormat() {
+        return "Raw";
+    }
+
+    @Override
+    public byte[] getEncoded() {
+        return ECUtil.toX962Uncompressed(point, params);
+    }
+
+    @Override
+    public ECParameterSpec getParams() {
+        return params;
+    }
+}