1 files changed, 42 insertions, 0 deletions
diff --git a/crypto/src/tls/BasicTlsPskExternal.cs b/crypto/src/tls/BasicTlsPskExternal.cs
new file mode 100644
index 000000000..dd9b7b221
--- /dev/null
+++ b/crypto/src/tls/BasicTlsPskExternal.cs
@@ -0,0 +1,42 @@
+using System;
+
+using Org.BouncyCastle.Tls.Crypto;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Tls
+{
+    public class BasicTlsPskExternal
+        : TlsPskExternal
+    {
+        protected readonly byte[] m_identity;
+        protected readonly TlsSecret m_key;
+        protected readonly int m_prfAlgorithm; 
+
+        public BasicTlsPskExternal(byte[] identity, TlsSecret key)
+            : this(identity, key, Tls.PrfAlgorithm.tls13_hkdf_sha256)
+        {
+        }
+
+        public BasicTlsPskExternal(byte[] identity, TlsSecret key, int prfAlgorithm)
+        {
+            this.m_identity = Arrays.Clone(identity);
+            this.m_key = key;
+            this.m_prfAlgorithm = prfAlgorithm;
+        }
+
+        public virtual byte[] Identity
+        {
+            get { return m_identity; }
+        }
+
+        public virtual TlsSecret Key
+        {
+            get { return m_key; }
+        }
+
+        public virtual int PrfAlgorithm
+        {
+            get { return m_prfAlgorithm; }
+        }
+    }
+}