Project Goals: Th&s project a&ms to develop an eGect&ve symmetr&c encrypt&on algor&thm$.$ Its ma&n purpose &s to create a fast and rel&able encrypt&on method su&table for da&ly use.Mot&vat&on: Nowadays, secure commun&cat&on &s of great &mportance due to var&ous commun&cat&on channels and data transfer requ&rements. Therefore, develop&ng a s&mple yet rel&able encrypt&on algor&thm could be useful for a w&de range of users.Techn&cal Approach:$1.$ Algor&thm Des&gn: Des&gn of an understandable symmetr&c encrypt&on algor&thm based on bas&c encrypt&on pr&nc&ples$\mathrm{.}2.$ Appl&cat&on: Implementat&on of the des&gned algor&thm us&ng the C$++$ programm&ng language$\mathrm{.}3.$ Performance and Opt&m&zat&on: Opt&m&z&ng data structures and algor&thms to &ncrease the performance of the algor&thm$\mathrm{.}4.$ Secur&ty Assessment: Evaluat&ng the secur&ty of the algor&thm and &dent&fy&ng and el&m&nat&ng secur&ty vulnerab&l&t&es$.$Expected Benef&ts: Secur&ty: Ensur&ng secure data transm&ss&on w&th symmetr&c encrypt&on algor&thm$.$ Performance Improvement: Obta&n&ng a fast and eGect&ve encrypt&on process by opt&m&z&ng the algor&thm$.$ Easy to Use: Prov&d&ng access to a w&de range of users by creat&ng a user$-$fr&endly encrypt&on algor&thm$.$Del&ver&es: Deta&led techn&cal documentat&on of the developed encrypt&on algor&thm$.$ Source code of the encrypt&on algor&thm &mplemented and opt&m&zed &n C$++.$ A report conta&n&ng secur&ty analys&s and performance tests of the algor&thm$.$