Add: Implemented a function that generates a hash value for an arbitr…

…ary string. #753

This function is needed to catch duplicated results in reports.

util/authutils.c

@@ -230,6 +230,30 @@ get_password_hashes (const gchar *password)
   return hashes_out;
 }
 
+/**
+ * @brief Calculate the MD5 hash value for a given string
+ *
+ * @param string The String to be hashed
+ *
+ * @return A pointer to a gchar containing the hash value as a hexadecimal
+ *         string, has to be freed by the caller.
+ */
+gchar *
+get_md5_hash_from_string (const gchar *string)
+{
+  g_assert (string);
+
+  gchar *hash_hex = NULL;
+  guchar *hash = g_malloc0 (gcry_md_get_algo_dlen (GCRY_MD_MD5));
+
+  gcry_md_hash_buffer (GCRY_MD_MD5, hash, string, strlen (string));
+  hash_hex = digest_hex (GCRY_MD_MD5, hash);
+
+  g_free (hash);
+
+  return hash_hex;
+}
+
 /**
  * @brief Authenticate a credential pair against user file contents.
  *

util/authutils.h

@@ -52,6 +52,9 @@ gvm_auth_init (void);
 int
 gvm_authenticate_classic (const gchar *, const gchar *, const gchar *);
 
+gchar *
+get_md5_hash_from_string (const gchar *);
+
 gchar *
 get_password_hashes (const gchar *);