1 files changed, 105 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/cryptopro/GOST3410ParamSetParameters.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/cryptopro/GOST3410ParamSetParameters.java
new file mode 100644
index 000000000..783bb6873
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/cryptopro/GOST3410ParamSetParameters.java
@@ -0,0 +1,105 @@
+package org.spongycastle.asn1.cryptopro;
+
+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.ASN1TaggedObject;
+import org.spongycastle.asn1.DERSequence;
+
+public class GOST3410ParamSetParameters
+    extends ASN1Object
+{
+    int             keySize;
+    ASN1Integer      p, q, a;
+
+    public static GOST3410ParamSetParameters getInstance(
+        ASN1TaggedObject obj,
+        boolean          explicit)
+    {
+        return getInstance(ASN1Sequence.getInstance(obj, explicit));
+    }
+
+    public static GOST3410ParamSetParameters getInstance(
+        Object obj)
+    {
+        if(obj == null || obj instanceof GOST3410ParamSetParameters)
+        {
+            return (GOST3410ParamSetParameters)obj;
+        }
+
+        if(obj instanceof ASN1Sequence)
+        {
+            return new GOST3410ParamSetParameters((ASN1Sequence)obj);
+        }
+
+        throw new IllegalArgumentException("Invalid GOST3410Parameter: " + obj.getClass().getName());
+    }
+
+    public GOST3410ParamSetParameters(
+        int keySize,
+        BigInteger  p,
+        BigInteger  q,
+        BigInteger  a)
+    {
+        this.keySize = keySize;
+        this.p = new ASN1Integer(p);
+        this.q = new ASN1Integer(q);
+        this.a = new ASN1Integer(a);
+    }
+
+    public GOST3410ParamSetParameters(
+        ASN1Sequence  seq)
+    {
+        Enumeration     e = seq.getObjects();
+
+        keySize = ((ASN1Integer)e.nextElement()).getValue().intValue();
+        p = (ASN1Integer)e.nextElement();
+        q = (ASN1Integer)e.nextElement();
+        a = (ASN1Integer)e.nextElement();
+    }
+
+    /**
+     * @deprecated use getKeySize
+     */
+    public int getLKeySize()
+    {
+        return keySize;
+    }
+
+    public int getKeySize()
+    {
+        return keySize;
+    }
+    
+    public BigInteger getP()
+    {
+        return p.getPositiveValue();
+    }
+
+    public BigInteger getQ()
+    {
+        return q.getPositiveValue();
+    }
+
+    public BigInteger getA()
+    {
+        return a.getPositiveValue();
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector  v = new ASN1EncodableVector();
+
+        v.add(new ASN1Integer(keySize));
+        v.add(p);
+        v.add(q);
+        v.add(a);
+
+        return new DERSequence(v);
+    }
+}