Today,　the　majority　of　banks　offer　many　different　online　services　to　their　customers　and　our　study　case　will　focus　specifically　on　domestic　and　international　banking　transactions.　By　doing　these　services,　these　banks　use　enough　time　to　conduct　bank　transactions　from　one　bank　account　to　another,　some　of　which　take　more　than　a　week,　under　a　security　that　does　not　fully　respect　the　privacy　of　operators　and　under　the　mercy　of　certain　third　party＇s　services.　Unfortunately,　these　banks　face　the　limitations　of　payment　systems　(such　as　SWIFT,　SEPA,　and　union　pay)　for　international　transactions　and　other　banking　exchange　services.　To　remedy　these　problems　of　third-party　trust,　exaggerated　latency,　payment　of　high　transaction　fees,　problems　of　theft　and　falsification　of　banking　information,　we　will　set　up　a　storage　and　bank　exchange　platform,　based　on　a　private　and　confidential　blockchain.　In　this　platform,　a　number　of　authorized　users　will　be　able　to　hold　and　operate　the　nodes　that　will　support　the　network.　Nowhere　in　the　world　is　there　a　system　that　directly　connects　banks,　currencies　and　financial　institutions　without　a　trusted　third　party.　In　our　case,　these　sworn　users　are　banks.　This　platform　will　eliminate　the　presence　of　the　trusted　third　party　which　is　the　third　entity　through　which　the　various　transactions　and　banking　information　must　pass.　To　begin　with,　our　platform　will　eliminate　third-party　trust,　promote　user-user　transactions　and　then　store　bank　transaction　information　in　the　blockchain.　Our　blockchain　platform　will　allow　users　to　make　secure　and　confidential　transactions　at　a　lower　cost　and　without　a　foreign　exchange　ban　due　to　a　maximum　amount　not　to　exceed　as　with　the　case　of　banks.　©　2019　IEEE.