1 files changed, 106 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/MacData.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/MacData.java
new file mode 100644
index 000000000..e1dda07b5
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/MacData.java
@@ -0,0 +1,106 @@
+package org.spongycastle.asn1.pkcs;
+
+import java.math.BigInteger;
+
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Integer;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1OctetString;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.DEROctetString;
+import org.spongycastle.asn1.DERSequence;
+import org.spongycastle.asn1.x509.DigestInfo;
+
+public class MacData
+    extends ASN1Object
+{
+    private static final BigInteger ONE = BigInteger.valueOf(1);
+
+    DigestInfo                  digInfo;
+    byte[]                      salt;
+    BigInteger                  iterationCount;
+
+    public static MacData getInstance(
+        Object  obj)
+    {
+        if (obj instanceof MacData)
+        {
+            return (MacData)obj;
+        }
+        else if (obj != null)
+        {
+            return new MacData(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    private MacData(
+        ASN1Sequence seq)
+    {
+        this.digInfo = DigestInfo.getInstance(seq.getObjectAt(0));
+
+        this.salt = ((ASN1OctetString)seq.getObjectAt(1)).getOctets();
+
+        if (seq.size() == 3)
+        {
+            this.iterationCount = ((ASN1Integer)seq.getObjectAt(2)).getValue();
+        }
+        else
+        {
+            this.iterationCount = ONE;
+        }
+    }
+
+    public MacData(
+        DigestInfo  digInfo,
+        byte[]      salt,
+        int         iterationCount)
+    {
+        this.digInfo = digInfo;
+        this.salt = salt;
+        this.iterationCount = BigInteger.valueOf(iterationCount);
+    }
+
+    public DigestInfo getMac()
+    {
+        return digInfo;
+    }
+
+    public byte[] getSalt()
+    {
+        return salt;
+    }
+
+    public BigInteger getIterationCount()
+    {
+        return iterationCount;
+    }
+
+    /**
+     * <pre>
+     * MacData ::= SEQUENCE {
+     *     mac      DigestInfo,
+     *     macSalt  OCTET STRING,
+     *     iterations INTEGER DEFAULT 1
+     *     -- Note: The default is for historic reasons and its use is deprecated. A
+     *     -- higher value, like 1024 is recommended.
+     * </pre>
+     * @return the basic ASN1Primitive construction.
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector  v = new ASN1EncodableVector();
+
+        v.add(digInfo);
+        v.add(new DEROctetString(salt));
+        
+        if (!iterationCount.equals(ONE))
+        {
+            v.add(new ASN1Integer(iterationCount));
+        }
+
+        return new DERSequence(v);
+    }
+}