diff --git a/core/java/src/net/i2p/crypto/EncAlgo.java b/core/java/src/net/i2p/crypto/EncAlgo.java
index b6c21753fc..751701bccb 100644
--- a/core/java/src/net/i2p/crypto/EncAlgo.java
+++ b/core/java/src/net/i2p/crypto/EncAlgo.java
@@ -1,6 +1,8 @@
 package net.i2p.crypto;
 
 /**
+ * PRELIMINARY - unused - subject to change
+ *
  * Base encryption algorithm type
  *
  * @since 0.9.18
diff --git a/core/java/src/net/i2p/crypto/EncType.java b/core/java/src/net/i2p/crypto/EncType.java
index ae53348596..cb9c0ad963 100644
--- a/core/java/src/net/i2p/crypto/EncType.java
+++ b/core/java/src/net/i2p/crypto/EncType.java
@@ -10,10 +10,12 @@ import net.i2p.data.Hash;
 import net.i2p.data.SimpleDataStructure;
 
 /**
- * Defines the properties for various signature types
+ * PRELIMINARY - unused - subject to change
+ *
+ * Defines the properties for various encryption types
  * that I2P supports or may someday support.
  *
- * All Signatures, SigningPublicKeys, and SigningPrivateKeys have a type.
+ * All PublicKeys and PrivateKeys have a type.
  * Note that a EncType specifies both an algorithm and parameters, so that
  * we may change primes or curves for a given algorithm.
  *