1 files changed, 13 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/crypto/ExtendedDigest.java b/core/src/main/java/org/bouncycastle/crypto/ExtendedDigest.java
new file mode 100644
index 00000000..c5e9e8b0
--- /dev/null
+++ b/core/src/main/java/org/bouncycastle/crypto/ExtendedDigest.java
@@ -0,0 +1,13 @@
+package org.bouncycastle.crypto;
+
+public interface ExtendedDigest 
+    extends Digest
+{
+    /**
+     * Return the size in bytes of the internal buffer the digest applies it's compression
+     * function to.
+     * 
+     * @return byte length of the digests internal buffer.
+     */
+    public int getByteLength();
+}