▁and ▁the ▁S AP CR Y P TO LI B ▁( S AP ▁encryption ▁library ) ▁for ▁S AP ▁server - to - server ▁encryption . ▁Sun ' s ▁solution ▁util izes ▁the ▁dynamic ▁libraries ▁( D LL ) ▁external ▁authentication ▁method . ▁ ▁IBM ▁Lot us ▁Dom ino ▁can ▁be ▁used ▁as ▁a ▁technical ▁ticket ▁ver ifier ▁component ▁ ▁Av ail ability ▁ ▁Windows , ▁Microsoft ▁Internet ▁Information ▁Server ▁ ▁Apache ▁HTTP ▁Server ▁ ▁Oracle ▁i Plan et ▁Web ▁Server ▁ ▁Dynamic ▁Link ▁Library ▁S AP ▁provides ▁Java ▁and ▁C ▁sample ▁files ▁that ▁can ▁provide ▁some ▁hints ▁how ▁the ▁library ▁can ▁be ▁implemented ▁in ▁the ▁source ▁code ▁of ▁a ▁high ▁level ▁programming ▁language ▁such ▁as ▁Visual ▁Basic , ▁C ▁or ▁Java . ▁ ▁Single ▁Sign - On ▁to ▁Microsoft ▁Web ▁App lications ▁Microsoft ▁web - based ▁applications ▁usually ▁only ▁support ▁the ▁authentication ▁methods ▁basic ▁authentication ▁or ▁windows ▁integrated ▁authentication ▁( K er ber os ) ▁provided ▁by ▁the ▁Internet ▁Information ▁Server . ▁However , ▁Ker ber os ▁does ▁not ▁work ▁well ▁over ▁the ▁internet ▁due ▁to ▁the ▁typical ▁configuration ▁of ▁client - side ▁fire w alls . ▁SS O ▁to ▁Microsoft ▁backend ▁systems ▁in ▁extr an et ▁scenarios ▁is ▁limited ▁to ▁the ▁user ▁id ▁password ▁mechanism . ▁Based ▁on ▁the ▁new ▁feature ▁called ▁protocol ▁transition ▁using ▁const rained ▁deleg ation ▁S AP ▁developed ▁the ▁SS O 2 2 K erb Map ▁Module . ▁This ▁new ▁I SA PI ▁Filter ▁requests ▁a ▁const rained ▁Ker ber os ▁ticket ▁for ▁users ▁identified ▁by ▁valid