1 files changed, 56 insertions, 0 deletions
diff --git a/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/jcajce/SignatureOutputStream.java b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/jcajce/SignatureOutputStream.java
new file mode 100644
index 000000000..808de3000
--- /dev/null
+++ b/libraries/spongycastle/pg/src/main/java/org/spongycastle/openpgp/operator/jcajce/SignatureOutputStream.java
@@ -0,0 +1,56 @@
+package org.spongycastle.openpgp.operator.jcajce;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.security.Signature;
+import java.security.SignatureException;
+
+class SignatureOutputStream
+    extends OutputStream
+{
+    private Signature sig;
+
+    SignatureOutputStream(Signature sig)
+    {
+        this.sig = sig;
+    }
+
+    public void write(byte[] bytes, int off, int len)
+        throws IOException
+    {
+        try
+        {
+            sig.update(bytes, off, len);
+        }
+        catch (SignatureException e)
+        {
+            throw new IOException("signature update caused exception: " + e.getMessage());
+        }
+    }
+
+    public void write(byte[] bytes)
+        throws IOException
+    {
+        try
+        {
+            sig.update(bytes);
+        }
+        catch (SignatureException e)
+        {
+            throw new IOException("signature update caused exception: " + e.getMessage());
+        }
+    }
+
+    public void write(int b)
+        throws IOException
+    {
+        try
+        {
+            sig.update((byte)b);
+        }
+        catch (SignatureException e)
+        {
+            throw new IOException("signature update caused exception: " + e.getMessage());
+        }
+    }
+}