Fix crypto implementation compilation errors

src/crypto.cpp

@@ -77,7 +77,7 @@ std::vector<unsigned char> Crypto::decrypt(const std::vector<unsigned char>& cip
         std::vector<unsigned char> plaintext(ciphertext.size());
         
         // Perform decryption and authentication
-        DecryptionResult result = decryption.DecryptAndVerify(
+        bool valid = decryption.DecryptAndVerify(
             plaintext.data(),
             auth_tag.data(),
             auth_tag.size(),
@@ -89,13 +89,10 @@ std::vector<unsigned char> Crypto::decrypt(const std::vector<unsigned char>& cip
             ciphertext.size()
         );
         
-        if(!result.isValidCoding) {
+        if(!valid) {
             throw std::runtime_error("Authentication failed during decryption");
         }
         
-        // Resize to actual plaintext size
-        plaintext.resize(result.messageLength);
-        
         return plaintext;
     }
     catch(const Exception& e) {