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Diffstat (limited to 'core/src/main/java/org/spongycastle/asn1/oiw/ElGamalParameter.java')
-rw-r--r--core/src/main/java/org/spongycastle/asn1/oiw/ElGamalParameter.java68
1 files changed, 68 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/oiw/ElGamalParameter.java b/core/src/main/java/org/spongycastle/asn1/oiw/ElGamalParameter.java
new file mode 100644
index 00000000..24dcde2c
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/asn1/oiw/ElGamalParameter.java
@@ -0,0 +1,68 @@
+package org.spongycastle.asn1.oiw;
+
+import java.math.BigInteger;
+import java.util.Enumeration;
+
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Integer;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.DERSequence;
+
+public class ElGamalParameter
+ extends ASN1Object
+{
+ ASN1Integer p, g;
+
+ public ElGamalParameter(
+ BigInteger p,
+ BigInteger g)
+ {
+ this.p = new ASN1Integer(p);
+ this.g = new ASN1Integer(g);
+ }
+
+ private ElGamalParameter(
+ ASN1Sequence seq)
+ {
+ Enumeration e = seq.getObjects();
+
+ p = (ASN1Integer)e.nextElement();
+ g = (ASN1Integer)e.nextElement();
+ }
+
+ public static ElGamalParameter getInstance(Object o)
+ {
+ if (o instanceof ElGamalParameter)
+ {
+ return (ElGamalParameter)o;
+ }
+ else if (o != null)
+ {
+ return new ElGamalParameter(ASN1Sequence.getInstance(o));
+ }
+
+ return null;
+ }
+
+ public BigInteger getP()
+ {
+ return p.getPositiveValue();
+ }
+
+ public BigInteger getG()
+ {
+ return g.getPositiveValue();
+ }
+
+ public ASN1Primitive toASN1Primitive()
+ {
+ ASN1EncodableVector v = new ASN1EncodableVector();
+
+ v.add(p);
+ v.add(g);
+
+ return new DERSequence(v);
+ }
+}