From 3cf5594b47b849a0056a44a4435552f2dd965f0f Mon Sep 17 00:00:00 2001
From: Tina_Azure <->
Date: Thu, 27 Apr 2023 00:27:50 +0200
Subject: [PATCH] hash functions

---
 src/utilities.cpp | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/utilities.cpp b/src/utilities.cpp
index 6c92d38..6760a56 100644
--- a/src/utilities.cpp
+++ b/src/utilities.cpp
@@ -252,6 +252,22 @@ namespace Utilities {
         return ss.str();
     }
 
+    std::string createHashSha256(const std::string& str){
+        unsigned char hash[SHA256_DIGEST_LENGTH];
+
+        SHA512_CTX sha256;
+        SHA512_Init(&sha256);
+        SHA512_Update(&sha256, str.c_str(), str.size());
+        SHA512_Final(hash, &sha256);
+
+        std::stringstream ss;
+
+        for(int i = 0; i < SHA256_DIGEST_LENGTH; i++){
+            ss << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>( hash[i] );
+        }
+        return ss.str();
+    }
+
     /*
      * Generates a salt using Mersenne Twister
      */
@@ -320,8 +336,15 @@ namespace Utilities {
     /*
      * Generates a hash based on a combination of 2 random salts
      */
-    std::string generateLoginKeyValue() {
-        return hashPassword(generateSalt(), generateSalt());
+    std::string generateRandomHashValueSHA512() {
+        return createHashSha512(generateSalt() + generateSalt());
+    }
+
+    /*
+     * Generates a hash based on a combination of 2 random salts
+     */
+    std::string generateRandomHashValueSHA256() {
+        return createHashSha256(generateSalt() + generateSalt());
     }
 
     /*