CS514: Inmi Co in Oing Sm Poo Kn imn K Ooki: T liion o h i O h h k h o Goi oool Dii monioing, h, n noiiion gmn oool, h 2PC n 3PC Unling hm: om hing n ong om o onin, om n mng ih k oi To, l look n liion h ol n o l o h oion, h h onin i i ill l L ih 2PC n nion Th olm: Som liion om oion on mlil W ol lik gn h ih ll h g, o non o Th ln igm? 2PC Polm: Pioil ion C n mlo Emlo o 3 -loo o n Co n Gol? Eih, n oh li g, o omhing il n nih o I? P ol h hogh ol ho n ion,.g. inli SSN o li o ol h, hn, n m h ogon nommi (m o) 2PC i goo mh! o h i h h o on i illingn o ommi Unil h ommi ll o, i oni mo In, i mi o i ning (o h/ ) 2PC o ll o h 1
Solion P n h nion, n h h o nion on mlil Th n o in lok & log Whn inih, n 2PC oool Unil h o ok n o 2PC i oom n inom hm Lo ilili? On onn: kno h 2PC lok I n hn i o o il I ol n o hn il g o ion n h igh o hi nio in ll h Oion? Col 3PC o (no limin!) hi ik, ill o on nion O j h ik Cn limin h ik ih il h m on! Dilling on Wh ol 3PC no limin h olm? I ggg n omli n h l i h i h il o, h nio i gon onl h imo o h i ill nio! I j n o o l likl, i im ik So: ik o ging k i lh Dilling on Wh no j ih hi ik? En h 3PC olion n ill omim g k M h I m k nio hol i i o o hi kin o liion! Thi oh l o i h n h olm n hn hl D minio lnh i i o g k Dilling on Wh o il h? Ull, ol o on l o ik h h il kin o ihing Onl on no on ik im. I no il, om oh no ill k o i ik No n il h o il no, hn n mk og in h m nio h oi hi n o o h h Connion o onin W ing o n om o ll o nohing onin ing 2PC I o o i o ih o h nion on ll, o on non hi on n gnli 2
iing So n o i m Inol oing mm o h Shol look i m il Som oion (o ) Goi o ggg h m U RPC o k on o o hi. Wih 2PC, i h hol m (h 1), hn nho h. iing Liilii $1,241,761,251.23 $875,221,117.17 U o iing In nk, m h onl il o nn iniionl ik N o om inn in im. I nh o loing im, nk h o ol-i g inonin i n! In i-onio m, migh i o n ini o o lk In hoil, n ili o in o hih ol min hih o In n ilin, migh n o kno o minnn n, inno Oh kin o iing In oml m h loking migh n o i o i lok h in In m h minin ii oj ol i o i oj n non, n gg oll ho h n Chllng In oml m, h ig ii i m, on kno ll h omonn Th g ing h lgoihm kno i X n X lk o m, n lk o n C lgoihm n o h link Imliion? O goi lgoihm migh ok o hi nio: h h nl ili o h link iml RPC hm ( ll m o ) om n RPC 3
N RPC Tmol ioion X Thing n omli n i Mg l (h onnl) Eion (on o h mhin ih mn oh k) Timing o nl n Lmo look hi ion oo Tmol ioion Wh o no mn? Tmol ioion Wh o no mn? 0 0 1 1 2 2 3 3 Tmol ioion Tmol ioion Timlin n h Timlin n hink 0 0 1 1 2 2 3 3 hling, mg l, mg lo E.g. omhing l mhin 4
Tmol ioion C n inn o im. 0 1 2 3 Conin n nho I i o ini m h migh h o in l-li N o oi ing in hih mg i i noo i hon hing n i Thi h olm ih h g no mk n lk ol o no g on. Tmol ioion R mg o g k Tmol ioion R mg o g k 0 0 1 1 2 2 3 3 In nhll: h inl mg h n n Who? In o iing ml, migh hink om o h nk mon i miing O o h n o o ii lok ion Sm l o i o ion oh o o n onl o on hing im lok o i h i il i Dlok ion lgoihm oi: h h lok i iing o, o n h o?, on i, i iing o, o n h m ion n o. n i iing on. 5
So hi W l Wiing o Wiing o Wiing o Wiing o i i lok? Phnom lok! So m h high o loking. Thn h lok l mg mg i.. iing o n iing o in, h im hk, no long iing! In : hk o lok on g n inonin. On olion i o h m On olion i o h m STOP! X STOP! X W I ing? Ok I ll l! i! Sigh On olion i o h m So o ol o, olk. I j n nho, l X On olion i o h m X H o go No olm Don Sigh H, on g h igh o i? 6
On olion i o h m Wh o i ok? Ok, o n go no X Whn hk nk on, o hk o lok, h m i il So i P i iing o Q n Q i iing o R ll mn imlnol o g hi gn i omhing ol no n ok i ing on! Conin n nho Gol i o lin o h m h h E mg i o i hon hing n n om oh o Som ning mg migh ill in ommniion hnnl n n o o hi hil nning Tn i ino n lgoihm To n nho, i il mg: P i i iniiing nho k. Th l ( i, k) nil inii h nho Wi on i on S oing inoming mg on ll hnnl Tn i ino n lgoihm No i ll i nigho o nho In gnl, on i lning o nho ( i, k), Wi on i : oniion o h nho S o o ll ommniion hnnl Fo h mg on ll ogoing hnnl So o o hnnl hn nho mg o ( i, k) i i on i Snho oni o ll h lol oniion n ll h -oing o h hnnl Chn/Lmo Ogoing o inoming o nho n hnnl Snho n mling h iniio, i lgoihm on ol o il o mg il. 7
Chn/Lmo Chn/Lmo I n o nho nok nok Chn/Lmo Chn/Lmo o lol monioing inoming hnnl nok nok Chn/Lmo Chn/Lmo onn o hnnl - loo mg on ogoing hnnl nok nok 8
9 Chn/Lmo nok Chn/Lmo i on nok Chn/Lmo nok Chn/Lmo nok Chn/Lmo nok Chn/Lmo nok
Chn/Lmo Chn/Lmo Don! nok nho o nok Pil imliion Snho on o oin in l im Col noil o in kin o io In om iion onl l innno i n, hi in ommon Wh long in h nho? Lol nml o X hn o k Mg in ni.g. o ning $1M om X o (ohi h mon ol miing) R n mm W gn o lo ol, gnl ool Th n l o om h h lom n (o hol) ni n nn hm ml h n ili o o n Thinking hi l h mn il ion j inn o h ml oh on in h o Wh n? W ll m h lomn o imii o liing Fi, noion o go mmhi Tn o o h ong onnion o o nho lgoihm! Thn l-oln mli Thn o mli li Finll l o il nhon mol Thn kl mo il olm 10