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dz̸У԰һͨȫϵо

Դһͨ      ߣ      2010/6/12 15:54:59

    1

У԰“һͨ”Ϣ룬漰ļУܿоƬ뵼΢Ӽģɵ·ݿ⴦缼Ϣȫȡ䰲ȫԶԣϢȫء

ܿ20ķչѹ㷺ӦڽڡͨšͨҽơȶҵӦԽԽ㣬չԽԽ졣Ŀǰܿռ洢ܿȸֵӿ50ӵҵӦһá࿨һ“һͨ”ķչɴ˳ڶ࿨ݴȡͨšȫȵĹع淶ļҪĹ淶ļǣISO/IEC7816ӦڽӴʽɵ·ISO/IEC14443ӦڷǽӴʽɵ·׼ǸָܿļܿĹܺ밲ȫصǩɢм㡢MACݼܺͽܵĹܺҵ׼ƶҵڵİȫ淶EuropayVisaMasterCardĽڽEMV淶ù淶ȷȫÿ֯зܿ໥ԡͼϵͳԣܿڲϵͳרõCOSڲϵͳJavaCardϵͳתƣʹܿĿΪףļʿƸʵ֡ǰܿȫļʿơѧʶĿٷչDESΪĶԳԿƺRSAΪĹԿΪܿݽװȫṩ˱ϣڴ˻γ˶ܿȫϵչеָʶ𡢺ĤʶʶʶʶܿеӦǿ䰲ȫԣһչܿĹܺӦ

ڹϣܿ“һͨ”ڹѧУ԰Ҳõ˹㷺Ӧãʮ꣬ѧȺ˸ԵУ԰ݿ⣬ѧѧѡΡסޡҽơѧѵȾݿУΪ“һͨ”ӦõĻƽ̨ɴˣѧУ԰“һͨ”ϵͳӦ÷ΧĿǰѴﵽ൱ij̶ȡ

ҹ19939¿ʼʵн𿨹̣еӻң˶ҵ׼ʹ𿨹̵ڹ淶ָ¿ٷչӦŲ貿ȹڸҵչʺ͹ұ׼Ҳ˸Եҵ׼ǽġйɵ·IC淶а棩20028£ʵֽһúȫͨã֤ICӦĿİȫסؽṩȫԵָڰȫ棬ñ׼˽ϵͳӦйذȫҪ󡢼㷨Ͱȫƣڹںۣ걸ԺͿɲԵȷ棬հסĿǰܿмʵĴѧͳ̾У԰“һͨ”˸ԵĿжֲƷ֣γԼIJҵͬʱҲУ԰“һͨ”İȫϵβ룬ȱͳһ׼ĻҾ档

2ĿоĿĺ

ΪִϢƽ̨ӦãУ԰“һͨ”ǽӦ˶ĵʹϵͳ֮ţΪһܿΪý飬ַӼУ԰ƣ˿ڡŽϢѯͼġʵƷѡҽ֧ѧѽɸѧ𷢷šʸšоѺȸУ԰ѵĽ㣬нڽ׵ڵڶܣ㲻ͬεĸѧУӦܽҵûĻӭ

Ȼȱͳһİȫ淶ϵѽڽУ԰“һͨ”ϵͳн̵IJͬͬϵͳİȫϵܴ󲢴İȫҪ·棺

2.1㷨һʵָ߰ȫȼ֤ǩ

2.2Կϵͳȱġ߰ȫȼķԡԺʹ䱣

2.3ƬͲһƵӴȺһĶ๦ܿʽʱǰȫԻݵļϾд⣻

2.4豸ȫ棬ȱִб׼ӣ

2.5ͨŷ棬ȱ߰ȫȼݱϵͳ淶ڿʵʩڲĿɳ֮

2.6ڽװȫ浥ҪӦУ԰ӦķչƲƶȫʶȵİȫ׹淶

2.7ʵּеĽڽ׹ܷ棬дʵ׶ΣӿƬԿȫƿ̵ȵȣÿһھҪרŵơ

⣬ߣ߼ܿ“Ŀ”ĴܿνУ԰“һͨ”ϵͳҲټڴȫϵĹ淶⣬ʹøصУ԰“һͨ”ϵͳڽģϣڽɺӦùģ϶ܴܵӰ졣ҲǵҹУ԰“һͨ”ϵͳķչ“”“”ǻǰҪԭɴ˿ɼǿУ԰“һͨ”ϵͳȫϵ淶оƽ䰲ȫϵĹ淶ͱ׼ڱСΪˣУ԰“һͨ”ȫϵоĿ⡣

У԰“һͨ”ӦIJϷչͳϵ“У԰”ȫԵġҵġҵӦϵķչΪˣ“У԰”“й”չĿںţԼҵƷƣԭй淶޶Ҳճ̣ǿȫϵоԵΪҪһ棬ܿҲڲϷչJava죬Կƽ̨ԣ̻˲ϵͳпԵAPIͿѡAppletJavaCardõ㷺ӦãCOSϰĿǰJavaCardѳΪܿҵ׼δܿJavaCardתƣγܿӦõķչơͬʱJavaCardĿƽ̨GlobalPlatformڽάʹܿ׼ʹãγܿ豸ϵͳĿſɲܣ򻯺ͼٿҵܿάΪҵϿɵĹƽ̨ѳΪʵϵĶӦñ׼δӦص⻹1024λRSAԿԵIJֿĿƥȣЩܿչߣδӦĶԹԿ㷨ǿȣ≥2048λԿʶ𡢶оƬӿڿܿ“һͨ”Ҫһ֤ʵֵȵȡ¼ӦöУ԰“һͨ”ȫϵ±׼Կǵģб׼ҲҪ漼ķչ

⽫ԭҵ淶Ļϣҵ±׼Ľ裬ˣڿо뿪нֿ“”µӦܿ¼á

3оĿꡢݺĹؼ

ҹеУ԰“һͨ”ϵͳдڵİȫΪ㣬ڽġԵоֵ̽Ļľ취γɹ㷨ԿƬȫ豸ȫͨŰȫװȫȲֹɵƵġɲǿİȫϵڴ˻Ͽһϵʵǿİȫ淶飨йػƼרҵĿϷȳɹΪоĿꡣ

оݺĹؼĵ㣺

3.1㷨ѡȡּ㷨

еУ԰ûڶԳԿƵ“һԿ”DES㷨䰲ȫԺͶԿҵӦõӦԵ⣬Ӧ߰ȫȼӦãڡǽڽеǩҪŽϵͳV֤ȶԼ㷨IJͬоѡͬļ㷨磺ԿµDES㷨ڷǶԳԿƵRAS㷨ڶԳǶԳԿµDESRSAϼ㷨ȵȡоƬϵͳԶּ㷨Ӧԡ⣬ּ㷨ʵý

3.2ּ㷨µԿ

оϵͳڶּ㷨Կ£ԿɡܡСʹáµһϵлϣӦ߰ȫȼ߱ķԡԡԡЧʹ⣬ӲܻӲܿPSAMģ顢PKIϵȼеĸ߰ȫȼԿ

3.3ͨŰȫ

еУ԰ӦԹ磺ʳ̳ѡҽƾƷѡͼӦáʵҼƷѡӦ֮ӵԼĹϵͳԳϵ˴֮以ݣͬϢ“µ”ĸ֣оֻ̽У԰ϵͳӦϢ⣬ԼУ԰ͨŵû֤ݼܡȫȷڵİȫ߰ȫԡ߿ɿԵݱϵͳƺʵԼ

3.4ӦüµĽװȫ

У԰Ӧý׿ɷΪڽ׺ͷǽڽ࣬ǰ߽խҪǵӴ۵ĽףȫҪߣ߽Ϲ㣨ҪеǮƱݡֵ֤ĽףȫвͬΪˣҪоУ԰ڿļ⡢ǽڽڽ׶԰ȫԵIJͬ⣬ƿӦֲͬĽ̺ͽ֤ԡǩȰȫĹ淶

DZоصѵ㣬֮⣬⻹оУ԰“һͨ”ϵͳ豸ͿƬİȫ淶⡣

4о˼·о뷽

4.1о˼·

о“ϣĽ”о˼·С

ν“”гɢУ԰Ӧüɹй淶ϣĿǰУ԰ʳá̵ѳķǽڽףǮ֧ȡֵ֡ȵȣͼݽĹʵҼƷѡϢѯѧȷӦüϣʹͳһĿƬͳһĹϵͳʹ֮“һͨ”ϵͳĻ⣬Ŀǰʽɢ⣬ж࿨һϣԼ㷨һ⣬жּ㷨ϡ

“Ľ”ָУ԰“һͨ”ϵͳдڵİȫ磺롢Կİȫ洢⡢Ƭ豸Կİȫʹ⡢֤Ч밲ȫ⡢ǩķʽͿɿ⡢ͨŵı⡢ͨϵͳİȫ©ٹʱϵͳȵȣϵͳIJԺͷϵͳڵİȫԸĽͰȫϵ淶ơ

“”ҪԶУ԰ϵͳչеӦã磺ŽҪ߰ȫȼ֤Žϵͳָ֤Ĥ֤ȣǽڷͨǮѧѽɸѧ𷢷šʸšоѻȵȣڷӴ۵Ĵȡ֡ת˵ȵȣԼǽ֮ĹӴǮ֮Ȧ桢Ȧᡢת˵ȵȣн̵ķͽװȫϵļԿ

о̣ȡȵбȶԣϣԼϣ߸Ľ߿ķʽȲչϽֲеĹʹ淶͹ڹ淶Զй淶еĿհ׽

    4.2о뷽

ΪӦûоĿѡʵ뷽ʮֹؼġͨµĿУԼԸؼϵооȷĸĿо뷽

4.2.1లȫµУ԰Ž/ϵͳϵͳӳϢںһ㳡ŽֲͬҪ磺ҡҡصʵҡġϢĵȣŽϵͳӦáϣ˿֤ܼͬȨ޵Կָ֤Ƽ֤䰲ȫ

4.2.2У԰PKIϵͳ䰲ȫϵͳУ԰ƽ̨ĹԿȫʵָǩӦ

4.2.3У԰ϢϵͳѯȫüʦͨУ԰ƽ̨ѯѧУϢԴ磺ϵͳѧ񡢿񣻿ϵͳѡ鱨ϵȵȣʱϵͳȫ

4.2.4У԰ϵͳȫоֻ̽У԰ϵͳͨŰȫ磺֤ݼܼǩԼϵͳĹȫȼ

оעʵϣеУ԰ƽ̨齨У԰ʵ黷ͬʱȡеϵͳ뿪ֶΣʵʲʵ沢ٵķԿ漰⡢ɹֶͨνвԺ֤Ϊˣ⽫еķ湤ߺ͸ֲԻ²Ժʵ棺

1ԿϵͳȫԵIJԣ

2ƿ뷢ϵͳȫԵʵ棻

3ͬȫȼŽϵͳȫԵIJԺʵ棻

4ǽڽ׹ЧԺͰȫԵʵ棻

5簲ȫͨŰȫԵIJԺʵ档

5

У԰ȫϵĹ淶ֱӹϵУ԰ӦóЧͷչһսַdzĹоɹǶԭҵ淶IJͷչ벢ƶҹУ԰“һͨ”ȫϵĹ淶ͱ׼裬ΪӿУ԰“һͨ”ϵͳ“”ϵͳչĽ貽סͬʱֿΪһѧУʵʩУ԰“һͨ”Ŀִб׼ƶĿһзУ԰ӦòƷУҵٽУ“ѧС”ѧģʽĸĸ

[ο]

[1].ܿз빤ʵ[M]..ʵ磬2002.
[2]׿˵.ܿȫ——ܿĽṹ··Ӧã3棩[M]..ӹҵ磬2002.
[3]ȵ.ܿȫӦãڶ棩[M]..ʵ磬2002.
[߼]ˣУ㲥ӴѧѧԺԺڣ滪У㲥ӴѧѧԺʵΣʦ

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