P2P网络的认证方法研究

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bA s tr ac t In t hi s pa p e r a. n ov le u a h e nt it a t i c n op ort o c ol c a l l de APEx PS K If o r P 2P n tew o k r is s pp or o s d e

w i hf t eh c om i bna t i o n f o ce r t ici fa e t a nd t ru s t. Tr s ut e b i ng b o u nd to c tei i r cfa e t ll a ows p e e r s t o p er fo rm a tu h oi rz a ti o n a n d a cc es s c on t o rl a s we l l a as ut he tni ca ti on.I na d id ito n, P AxES P KI va iod s t eh p r e s e n c e o f c e n tr l ta us r te da ut h itor i e s a n d a llo w s e v re yp e er i nt h ec momu n t i y to p a r ti c ip a te in ht t ues r t r ce om e n md ta o in nda b e a n a egn t ot i s s ue c e r i i tfc t ae s ro fo t he r ep e,ws rhi c h f ul l y e b o m i d e s t h e q u iet y a n d se l f - g ove r n emn t o f p e e s . r K y e wor d s a ut eh t i n a tc o n,iExS PK I, e e rp— to— e e p r,tr u s tm an a g eem nt ( C PT 39 31 I n t r od u c t i on P 2P n e t wo r k i s t ya p c i l r eas aer ch a re a t h ta i d sv ir ne b y a pp li c t i a n.o h T e arp i d d e v el o pem nt o f Na p s te r L a nd n G tue l a l m a k es ma ny r s ee ar che r sp ay at t en t o n in d a de v o t e t e ms e h l ves to h t si ar ae P. 2 P te c n o lho gy s uc c e ss fu lly

h cn age st h e ent ow rk r e so u r c se f ro cme n rt lia za it no to d e cen t r lia z ati on, an d am ke s t he i n di v i dul uas e r s a c u t l lay t k e a a r t p in t he n e t o w rk c o m pu t i ng nd a a p p l i c a ti noT.o da y,t hi s t e ch n o l y o gi s g ra d ll uay a ppl eid t oa r e a 8 f o im l i ta ry, b u is n ess, o g e vn em n t r i n o fma r t oi n, c mom u nic a tio n a n d SO o n. Ho ewv e r,i wth t he s pr e a d o fP P2 ap pli c t aio n a nd e x p na d ni g o f y s s t me sn, e twor k s e cu ti ry b e c oem s a n i m p re s is n g p ob r l em .D ue t o i ts de c e n trli z a t ai on a n d es lG ogv em me tn n at rue s t.h e esc iu try p ob r l e s m of P 2 nPe two k sr c a n no t eb we l l s o lv e wi td h r atd it i o nls a ec u it ry t ec hno l o g ie s . u r C re n l yt m or ea n d m r eo pe o p l e a re us i g n r p eut a t oi n— abs e d tr su t am a ng ee m tn t os o l e v t eh s e c ut iry pr o b lem isn P P 2 n et ow k s ra n d h v a e g ot so me a h ci e ve e mnt .sT r u st a mna g ee n t m t e h cno lo y g is a s u p p l meen t to t r a d it o ni l a s ec iu rty t c he onl oy I . n g 91 6, M 9.B a lze a n do th e r p eo pl e p op r o e s d th e

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