1 files changed, 15 insertions, 0 deletions
diff --git a/include/Signature.hpp b/include/Signature.hpp
index aace383..62c41c3 100644
--- a/include/Signature.hpp
+++ b/include/Signature.hpp
@@ -2,6 +2,7 @@
 
 #include "DataView.hpp"
 #include <stdexcept>
+#include <unordered_map>
 
 namespace odhtdb
 {
@@ -67,6 +68,9 @@ namespace odhtdb
             // Both exceptions are derived from UnsignException
             std::string unsign(const DataView &signedMessage) const;
             
+            size_t operator()() const;
+            bool operator==(const PublicKey &other) const;
+            
             std::string toString() const;
         private:
             PublicKey(){}
@@ -74,6 +78,17 @@ namespace odhtdb
             char data[PUBLIC_KEY_NUM_BYTES];
         };
         
+        struct PublicKeyHasher
+        {
+            size_t operator()(const PublicKey &publicKey) const
+            {
+                return publicKey();
+            }
+        };
+        
+        template <typename ValueType>
+        using MapPublicKey = std::unordered_map<PublicKey, ValueType, PublicKeyHasher>;
+        
         class PrivateKey
         {
             friend class KeyPair;