1 files changed, 104 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/crmf/PKMACValue.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/crmf/PKMACValue.java
new file mode 100644
index 000000000..c3481df02
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/crmf/PKMACValue.java
@@ -0,0 +1,104 @@
+package org.spongycastle.asn1.crmf;
+
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.ASN1TaggedObject;
+import org.spongycastle.asn1.DERBitString;
+import org.spongycastle.asn1.DERSequence;
+import org.spongycastle.asn1.cmp.CMPObjectIdentifiers;
+import org.spongycastle.asn1.cmp.PBMParameter;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+
+/**
+ * Password-based MAC value for use with POPOSigningKeyInput.
+ */
+public class PKMACValue
+    extends ASN1Object
+{
+    private AlgorithmIdentifier  algId;
+    private DERBitString        value;
+
+    private PKMACValue(ASN1Sequence seq)
+    {
+        algId = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
+        value = DERBitString.getInstance(seq.getObjectAt(1));
+    }
+
+    public static PKMACValue getInstance(Object o)
+    {
+        if (o instanceof PKMACValue)
+        {
+            return (PKMACValue)o;
+        }
+
+        if (o != null)
+        {
+            return new PKMACValue(ASN1Sequence.getInstance(o));
+        }
+
+        return null;
+    }
+
+    public static PKMACValue getInstance(ASN1TaggedObject obj, boolean isExplicit)
+    {
+        return getInstance(ASN1Sequence.getInstance(obj, isExplicit));
+    }
+
+    /**
+     * Creates a new PKMACValue.
+     * @param params parameters for password-based MAC
+     * @param value MAC of the DER-encoded SubjectPublicKeyInfo
+     */
+    public PKMACValue(
+        PBMParameter params,
+        DERBitString value)
+    {
+        this(new AlgorithmIdentifier(
+                    CMPObjectIdentifiers.passwordBasedMac, params), value);
+    }
+
+    /**
+     * Creates a new PKMACValue.
+     * @param aid CMPObjectIdentifiers.passwordBasedMAC, with PBMParameter
+     * @param value MAC of the DER-encoded SubjectPublicKeyInfo
+     */
+    public PKMACValue(
+        AlgorithmIdentifier aid,
+        DERBitString value)
+    {
+        this.algId = aid;
+        this.value = value;
+    }
+
+    public AlgorithmIdentifier getAlgId()
+    {
+        return algId;
+    }
+
+    public DERBitString getValue()
+    {
+        return value;
+    }
+
+    /**
+     * <pre>
+     * PKMACValue ::= SEQUENCE {
+     *      algId  AlgorithmIdentifier,
+     *      -- algorithm value shall be PasswordBasedMac 1.2.840.113533.7.66.13
+     *      -- parameter value is PBMParameter
+     *      value  BIT STRING }
+     * </pre>
+     * @return a basic ASN.1 object representation.
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector v = new ASN1EncodableVector();
+
+        v.add(algId);
+        v.add(value);
+
+        return new DERSequence(v);
+    }
+}