1 files changed, 84 insertions, 0 deletions
diff --git a/repackaged_platform/bcpkix/src/main/java/com/android/internal/org/bouncycastle/operator/bc/BcDigestCalculatorProvider.java b/repackaged_platform/bcpkix/src/main/java/com/android/internal/org/bouncycastle/operator/bc/BcDigestCalculatorProvider.java
new file mode 100644
index 00000000..176c681a
--- /dev/null
+++ b/repackaged_platform/bcpkix/src/main/java/com/android/internal/org/bouncycastle/operator/bc/BcDigestCalculatorProvider.java
@@ -0,0 +1,84 @@
+/* GENERATED SOURCE. DO NOT MODIFY. */
+package com.android.internal.org.bouncycastle.operator.bc;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+import com.android.internal.org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import com.android.internal.org.bouncycastle.crypto.Digest;
+import com.android.internal.org.bouncycastle.operator.DigestCalculator;
+import com.android.internal.org.bouncycastle.operator.DigestCalculatorProvider;
+import com.android.internal.org.bouncycastle.operator.OperatorCreationException;
+
+/**
+ * @hide This class is not part of the Android public SDK API
+ */
+public class BcDigestCalculatorProvider
+    implements DigestCalculatorProvider
+{
+    private BcDigestProvider digestProvider = BcDefaultDigestProvider.INSTANCE;
+
+    public DigestCalculator get(final AlgorithmIdentifier algorithm)
+        throws OperatorCreationException
+    {
+        Digest dig = digestProvider.get(algorithm);
+
+        final DigestOutputStream stream = new DigestOutputStream(dig);
+
+        return new DigestCalculator()
+        {
+            public AlgorithmIdentifier getAlgorithmIdentifier()
+            {
+                return algorithm;
+            }
+
+            public OutputStream getOutputStream()
+            {
+                return stream;
+            }
+
+            public byte[] getDigest()
+            {
+                return stream.getDigest();
+            }
+        };
+    }
+
+    private class DigestOutputStream
+        extends OutputStream
+    {
+        private Digest dig;
+
+        DigestOutputStream(Digest dig)
+        {
+            this.dig = dig;
+        }
+
+        public void write(byte[] bytes, int off, int len)
+            throws IOException
+        {
+            dig.update(bytes, off, len);
+        }
+
+        public void write(byte[] bytes)
+            throws IOException
+        {
+            dig.update(bytes, 0, bytes.length);
+        }
+
+        public void write(int b)
+            throws IOException
+        {
+            dig.update((byte)b);
+        }
+
+        byte[] getDigest()
+        {
+            byte[] d = new byte[dig.getDigestSize()];
+
+            dig.doFinal(d, 0);
+
+            return d;
+        }
+    }
+}
+\ No newline at end of file