From 0e62cb8e5ed06d906ad84321cdda22acfcc952c9 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Fri, 9 Mar 2018 10:26:55 +0100
Subject: Partially implement 'add' operation

---
 include/Hash.hpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'include/Hash.hpp')

diff --git a/include/Hash.hpp b/include/Hash.hpp
index d7c90b0..bd87b69 100644
--- a/include/Hash.hpp
+++ b/include/Hash.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include "utils.hpp"
-#include <sodium/crypto_generichash_blake2b.h>
 #include <stdexcept>
 #include <unordered_map>
 
@@ -9,6 +8,15 @@ namespace odhtdb
 {
     const int HASH_BYTE_SIZE = 32;
     
+    // Source: https://stackoverflow.com/a/11414104 (public license)
+    static size_t fnvHash(const unsigned char *key, int len)
+    {
+        size_t h = 2166136261;
+        for (int i = 0; i < len; i++)
+            h = (h * 16777619) ^ key[i];
+        return h;
+    }
+    
     class HashException : public std::runtime_error
     {
     public:
@@ -21,6 +29,7 @@ namespace odhtdb
         Hash();
         // Throws HashException on failure
         Hash(const void *input, const size_t inputSize);
+        Hash(const Hash &other);
         
         void* getData() const { return (void*)data; }
         size_t getSize() const { return HASH_BYTE_SIZE; }
-- 
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