diff --git a/src/main/java/meerkat/crypto/Digest.java b/src/main/java/meerkat/crypto/Digest.java
new file mode 100644
index 0000000..1de1e28
--- /dev/null
+++ b/src/main/java/meerkat/crypto/Digest.java
@@ -0,0 +1,7 @@
+package meerkat.crypto;
+
+/**
+ * Created by talm on 11/9/15.
+ */
+public interface Digest {
+}
diff --git a/src/main/java/meerkat/crypto/concrete/SHA256Digest.java b/src/main/java/meerkat/crypto/concrete/SHA256Digest.java
new file mode 100644
index 0000000..eb869c6
--- /dev/null
+++ b/src/main/java/meerkat/crypto/concrete/SHA256Digest.java
@@ -0,0 +1,7 @@
+package meerkat.crypto.concrete;
+
+/**
+ * Created by talm on 11/9/15.
+ */
+public class SHA256Digest {
+}