1 files changed, 66 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/BERTaggedObjectParser.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/BERTaggedObjectParser.java
new file mode 100644
index 000000000..cb7f13ffa
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/BERTaggedObjectParser.java
@@ -0,0 +1,66 @@
+package org.spongycastle.asn1;
+
+import java.io.IOException;
+
+public class BERTaggedObjectParser
+    implements ASN1TaggedObjectParser
+{
+    private boolean _constructed;
+    private int _tagNumber;
+    private ASN1StreamParser _parser;
+
+    BERTaggedObjectParser(
+        boolean             constructed,
+        int                 tagNumber,
+        ASN1StreamParser    parser)
+    {
+        _constructed = constructed;
+        _tagNumber = tagNumber;
+        _parser = parser;
+    }
+
+    public boolean isConstructed()
+    {
+        return _constructed;
+    }
+
+    public int getTagNo()
+    {
+        return _tagNumber;
+    }
+
+    public ASN1Encodable getObjectParser(
+        int     tag,
+        boolean isExplicit)
+        throws IOException
+    {
+        if (isExplicit)
+        {
+            if (!_constructed)
+            {
+                throw new IOException("Explicit tags must be constructed (see X.690 8.14.2)");
+            }
+            return _parser.readObject();
+        }
+
+        return _parser.readImplicit(_constructed, tag);
+    }
+
+    public ASN1Primitive getLoadedObject()
+        throws IOException
+    {
+        return _parser.readTaggedObject(_constructed, _tagNumber);
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        try
+        {
+            return this.getLoadedObject();
+        }
+        catch (IOException e)
+        {
+            throw new ASN1ParsingException(e.getMessage());
+        }
+    }
+}