1 files changed, 111 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/ocsp/Signature.java b/core/src/main/java/org/spongycastle/asn1/ocsp/Signature.java
new file mode 100644
index 00000000..776f7066
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/asn1/ocsp/Signature.java
@@ -0,0 +1,111 @@
+package org.spongycastle.asn1.ocsp;
+
+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.DERTaggedObject;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+
+public class Signature
+    extends ASN1Object
+{
+    AlgorithmIdentifier signatureAlgorithm;
+    DERBitString        signature;
+    ASN1Sequence        certs;
+
+    public Signature(
+        AlgorithmIdentifier signatureAlgorithm,
+        DERBitString        signature)
+    {
+        this.signatureAlgorithm = signatureAlgorithm;
+        this.signature = signature;
+    }
+
+    public Signature(
+        AlgorithmIdentifier signatureAlgorithm,
+        DERBitString        signature,
+        ASN1Sequence        certs)
+    {
+        this.signatureAlgorithm = signatureAlgorithm;
+        this.signature = signature;
+        this.certs = certs;
+    }
+
+    private Signature(
+        ASN1Sequence    seq)
+    {
+        signatureAlgorithm  = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
+        signature = (DERBitString)seq.getObjectAt(1);
+
+        if (seq.size() == 3)
+        {
+            certs = ASN1Sequence.getInstance(
+                                (ASN1TaggedObject)seq.getObjectAt(2), true);
+        }
+    }
+
+    public static Signature getInstance(
+        ASN1TaggedObject obj,
+        boolean          explicit)
+    {
+        return getInstance(ASN1Sequence.getInstance(obj, explicit));
+    }
+
+    public static Signature getInstance(
+        Object  obj)
+    {
+        if (obj instanceof Signature)
+        {
+            return (Signature)obj;
+        }
+        else if (obj != null)
+        {
+            return new Signature(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    public AlgorithmIdentifier getSignatureAlgorithm()
+    {
+        return signatureAlgorithm;
+    }
+
+    public DERBitString getSignature()
+    {
+        return signature;
+    }
+
+    public ASN1Sequence getCerts()
+    {
+        return certs;
+    }
+
+    /**
+     * Produce an object suitable for an ASN1OutputStream.
+     * <pre>
+     * Signature       ::=     SEQUENCE {
+     *     signatureAlgorithm      AlgorithmIdentifier,
+     *     signature               BIT STRING,
+     *     certs               [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL}
+     * </pre>
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector    v = new ASN1EncodableVector();
+
+        v.add(signatureAlgorithm);
+        v.add(signature);
+
+        if (certs != null)
+        {
+            v.add(new DERTaggedObject(true, 0, certs));
+        }
+
+        return new DERSequence(v);
+    }
+}