▁a ▁certificate ▁authority , ▁an ▁L IR ▁can ▁either ▁publish ▁all ▁crypt ographic ▁material ▁themselves , ▁or ▁they ▁can ▁rely ▁on ▁a ▁third ▁party ▁for ▁publication . ▁When ▁an ▁L IR ▁cho oses ▁to ▁use ▁the ▁hosted ▁system ▁provided ▁by ▁the ▁R IR , ▁in ▁principle ▁publication ▁is ▁done ▁in ▁the ▁R IR ▁repository . ▁ ▁Valid ation ▁ ▁R ely ing ▁parties ▁run ▁local ▁R PK I ▁validation ▁tools , ▁which ▁are ▁pointed ▁at ▁the ▁different ▁R PK I ▁trust ▁anch ors ▁and ▁using ▁r sync ▁gather ▁all ▁crypt ographic ▁objects ▁from ▁the ▁different ▁repositories ▁used ▁for ▁publication . ▁This ▁creates ▁a ▁local ▁valid ated ▁cache ▁which ▁can ▁be ▁used ▁for ▁making ▁B GP ▁routing ▁dec isions . ▁ ▁Rout ing ▁dec isions ▁ ▁After ▁validation ▁of ▁RO As , ▁the ▁att est ations ▁can ▁be ▁compared ▁to ▁B GP ▁routing ▁and ▁aid ▁network ▁operators ▁in ▁their ▁decision ▁making ▁process . ▁This ▁can ▁be ▁done ▁manually , ▁but ▁the ▁valid ated ▁prefix ▁origin ▁data ▁can ▁also ▁be ▁sent ▁to ▁a ▁supported ▁router ▁using ▁the ▁R PK I ▁to ▁R outer ▁Pro tocol ▁( R FC ▁ 6 8 1 0 ), ▁C is co ▁Systems ▁offers ▁native ▁support ▁on ▁many ▁platforms ▁for ▁fetch ing ▁the ▁R PK I ▁data ▁set ▁and ▁using ▁it ▁in ▁the ▁router ▁configuration . ▁Juni per ▁offers ▁support ▁on ▁all ▁platforms ▁that ▁run ▁version ▁ 1 2 . 2 ▁or ▁newer . ▁Qu ag ga ▁obtain s ▁this ▁functionality ▁through ▁B GP ▁Sec ure ▁Rout ing ▁Ext ensions