4 files changed, 5 insertions, 1 deletions
diff --git a/crypto/src/crypto/IDigestFactory.cs b/crypto/src/crypto/IDigestFactory.cs
index 33d8f0974..36054c028 100644
--- a/crypto/src/crypto/IDigestFactory.cs
+++ b/crypto/src/crypto/IDigestFactory.cs
@@ -4,7 +4,8 @@ namespace Org.BouncyCastle.Crypto
 {
     /// <summary>
     /// Base interface for operator factories that create stream-based digest calculators.
-    /// </summary>   
+    /// </summary>
+    // TODO[api] Add 'out A' type parameter for AlgorithmDetails return type
     public interface IDigestFactory
 	{
 		/// <summary>The algorithm details object for calculators made by this factory.</summary>
diff --git a/crypto/src/crypto/IMacFactory.cs b/crypto/src/crypto/IMacFactory.cs
index 49ace39d5..62776b4a3 100644
--- a/crypto/src/crypto/IMacFactory.cs
+++ b/crypto/src/crypto/IMacFactory.cs
@@ -2,6 +2,7 @@
 
 namespace Org.BouncyCastle.Crypto
 {
+    // TODO[api] Add 'out A' type parameter for AlgorithmDetails return type
     public interface IMacFactory
     {
         /// <summary>The algorithm details object for this calculator.</summary>
diff --git a/crypto/src/crypto/ISignatureFactory.cs b/crypto/src/crypto/ISignatureFactory.cs
index 2cda6b2cf..0341f5f44 100644
--- a/crypto/src/crypto/ISignatureFactory.cs
+++ b/crypto/src/crypto/ISignatureFactory.cs
@@ -3,6 +3,7 @@ namespace Org.BouncyCastle.Crypto
     /// <summary>
     /// Base interface for operators that serve as stream-based signature calculators.
     /// </summary>
+    // TODO[api] Add 'out A' type parameter for AlgorithmDetails return type
     public interface ISignatureFactory
 	{
         /// <summary>The algorithm details object for this calculator.</summary>
diff --git a/crypto/src/crypto/IVerifierFactory.cs b/crypto/src/crypto/IVerifierFactory.cs
index 8f32119de..8f28caeae 100644
--- a/crypto/src/crypto/IVerifierFactory.cs
+++ b/crypto/src/crypto/IVerifierFactory.cs
@@ -3,6 +3,7 @@ namespace Org.BouncyCastle.Crypto
     /// <summary>
     /// Base interface for operators that serve as stream-based signature verifiers.
     /// </summary>
+    // TODO[api] Add 'out A' type parameter for AlgorithmDetails return type
     public interface IVerifierFactory
 	{
         /// <summary>The algorithm details object for this verifier.</summary>