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涓.        綆浠?/h1>

榪欐鏃墮棿鍦ㄧ湅涔︾殑鏃跺欙紝鐪嬪埌鐩稿叧绔犺妭鍏充簬鐨勫畨鍏ㄦ柟闈㈢殑錛岄噷闈㈡秹鍙婂埌浜嗕竴浜涘姞瀵嗙殑綆楁硶錛屾濂芥垜鐜板湪鐨勯」鐩腑涔熺敤鍒頒簡鐩稿叧鐨勭殑涓滆タ錛屾暟瀛楃鍚嶇瓑銆備粖澶╂妸鐩稿叧鐨勬悳闆嗚搗鏉ャ備互澶囧悗鐢ㄣ?/p>

浜?          鍔犲瘑綆楁硶浠嬬粛

鏍規嵁瀵嗛挜綾誨瀷涓嶅悓灝嗙幇浠e瘑鐮佹妧鏈垎涓轟袱綾伙細瀵圭О鍔犲瘑綆楁硶錛堢瀵嗛挜鍖欏姞瀵嗭級鍜岄潪瀵圭О鍔犲瘑綆楁硶錛堝叕寮瀵嗛挜鍔犲瘑錛夈?/span>

瀵圭О閽ュ寵鍔犲瘑緋葷粺鏄姞瀵嗗拰瑙e瘑鍧囬噰鐢ㄥ悓涓鎶婄瀵嗛挜鍖欙紝鑰屼笖閫氫俊鍙屾柟閮藉繀欏昏幏寰楄繖鎶婇挜鍖欙紝騫朵繚鎸侀挜鍖欑殑縐樺瘑銆?/span>

闈炲縐板瘑閽ュ姞瀵嗙郴緇熼噰鐢ㄧ殑鍔犲瘑閽ュ寵錛堝叕閽ワ級鍜岃В瀵嗛挜鍖欙紙縐侀挜錛夋槸涓嶅悓鐨勩?/span>

瀵圭О鍔犲瘑綆楁硶

瀵圭О鍔犲瘑綆楁硶鐢ㄦ潵瀵規晱鎰熸暟鎹瓑淇℃伅榪涜鍔犲瘑錛屽父鐢ㄧ殑綆楁硶鍖呮嫭錛?/span>

DES錛圖ata Encryption Standard錛夛細鏁版嵁鍔犲瘑鏍囧噯錛岄熷害杈冨揩錛岄傜敤浜庡姞瀵嗗ぇ閲忔暟鎹殑鍦哄悎銆?/span>

3DES錛圱riple DES錛夛細鏄熀浜嶥ES錛屽涓鍧楁暟鎹敤涓変釜涓嶅悓鐨勫瘑閽ヨ繘琛屼笁嬈″姞瀵嗭紝寮哄害鏇撮珮銆?/span>

AES錛圓dvanced Encryption Standard錛夛細楂樼駭鍔犲瘑鏍囧噯錛屾槸涓嬩竴浠g殑鍔犲瘑綆楁硶鏍囧噯錛岄熷害蹇紝瀹夊叏綰у埆楂橈紱

AES

2000騫?0鏈堬紝NIST錛堢編鍥藉浗瀹舵爣鍑嗗拰鎶鏈崗浼氾級瀹e竷閫氳繃浠?5縐嶄警閫夌畻娉曚腑閫夊嚭鐨勪竴欏規柊鐨勫瘑鍖欏姞瀵嗘爣鍑嗐俁ijndael琚変腑鎴愪負灝嗘潵鐨凙ES銆?Rijndael鏄湪 1999 騫翠笅鍗婂勾錛岀敱鐮旂┒鍛?Joan Daemen 鍜?Vincent Rijmen 鍒涘緩鐨勩侫ES 姝f棩鐩婃垚涓哄姞瀵嗗悇縐嶅艦寮忕殑鐢靛瓙鏁版嵁鐨勫疄闄呮爣鍑嗐?/span>

緹庡浗鏍囧噯涓庢妧鏈爺絀墮櫌 (NIST) 浜?2002 騫?5 鏈?26 鏃ュ埗瀹氫簡鏂扮殑楂樼駭鍔犲瘑鏍囧噯 (AES) 瑙勮寖銆?/span>

綆楁硶鍘熺悊

AES 綆楁硶鍩轟簬鎺掑垪鍜岀疆鎹㈣繍綆椼傛帓鍒楁槸瀵規暟鎹噸鏂拌繘琛屽畨鎺掞紝緗崲鏄皢涓涓暟鎹崟鍏冩浛鎹負鍙︿竴涓侫ES 浣跨敤鍑犵涓嶅悓鐨勬柟娉曟潵鎵ц鎺掑垪鍜岀疆鎹㈣繍綆椼?/span>

AES 鏄竴涓凱浠g殑銆佸縐板瘑閽ュ垎緇勭殑瀵嗙爜錛屽畠鍙互浣跨敤128銆?92 鍜?256 浣嶅瘑閽ワ紝騫朵笖鐢?128 浣嶏紙16瀛楄妭錛夊垎緇勫姞瀵嗗拰瑙e瘑鏁版嵁銆備笌鍏叡瀵嗛挜瀵嗙爜浣跨敤瀵嗛挜瀵逛笉鍚岋紝瀵圭О瀵嗛挜瀵嗙爜浣跨敤鐩稿悓鐨勫瘑閽ュ姞瀵嗗拰瑙e瘑鏁版嵁銆傞氳繃鍒嗙粍瀵嗙爜榪斿洖鐨勫姞瀵嗘暟鎹殑浣嶆暟涓庤緭鍏ユ暟鎹浉鍚屻傝凱浠e姞瀵嗕嬌鐢ㄤ竴涓驚鐜粨鏋勶紝鍦ㄨ寰幆涓噸澶嶇疆鎹㈠拰鏇挎崲杈撳叆鏁版嵁銆?/span>

AES涓?DES鐨勬瘮杈?

綆楁硶鍚嶇О

綆楁硶綾誨瀷

瀵嗛挜闀垮害

閫熷害

瑙e瘑鏃墮棿錛堝緩璁炬満鍣ㄦ瘡縐掑皾璇?55涓瘑閽ワ級

璧勬簮娑堣?/span>

AES

瀵圭Оblock瀵嗙爜

128銆?92銆?56浣?/span>

楂?/span>

1490000浜垮勾

浣?/span>

3DES

瀵圭Оfeistel瀵嗙爜

112浣嶆垨168浣?/span>

浣?/span>

46浜垮勾

涓?/span>

闈炲縐扮畻娉?

甯歌鐨勯潪瀵圭О鍔犲瘑綆楁硶濡備笅錛?/span>

RSA錛氱敱 RSA 鍏徃鍙戞槑錛屾槸涓涓敮鎸佸彉闀垮瘑閽ョ殑鍏叡瀵嗛挜綆楁硶錛岄渶瑕佸姞瀵嗙殑鏂囦歡鍧楃殑闀垮害涔熸槸鍙彉鐨勶紱

DSA錛圖igital Signature Algorithm錛夛細鏁板瓧絳懼悕綆楁硶錛屾槸涓縐嶆爣鍑嗙殑 DSS錛堟暟瀛楃鍚嶆爣鍑嗭級錛?/span>

ECC錛圗lliptic Curves Cryptography錛夛細妞渾鏇茬嚎瀵嗙爜緙栫爜瀛︺?/span>

ECC

鍦?976騫達紝鐢變簬瀵圭О鍔犲瘑綆楁硶宸茬粡涓嶈兘婊¤凍闇瑕侊紝Diffie 鍜孒ellman鍙戣〃浜嗕竴綃囧彨銆婂瘑鐮佸鏂板姩鍚戙嬬殑鏂囩珷錛屼粙緇嶄簡鍏寵鍔犲瘑鐨勬蹇碉紝鐢盧ivet銆丼hamir銆丄delman鎻愬嚭浜哛SA綆楁硶銆?/span>

闅忕潃鍒嗚В澶ф暣鏁版柟娉曠殑榪涙鍙婂畬鍠勩佽綆楁満閫熷害鐨勬彁楂樹互鍙婅綆楁満緗戠粶鐨勫彂灞曪紝涓轟簡淇濋殰鏁版嵁鐨勫畨鍏紝RSA鐨勫瘑閽ラ渶瑕佷笉鏂鍔狅紝浣嗘槸錛屽瘑閽ラ暱搴︾殑澧炲姞瀵艱嚧浜嗗叾鍔犺В瀵嗙殑閫熷害澶т負闄嶄綆錛岀‖浠跺疄鐜頒篃鍙樺緱瓚婃潵瓚婇毦浠ュ繊鍙楋紝榪欏浣跨敤RSA鐨勫簲鐢ㄥ甫鏉ヤ簡寰堥噸鐨勮礋鎷咃紝鍥犳闇瑕佷竴縐嶆柊鐨勭畻娉曟潵浠f浛RSA銆?/span>

1985騫碞.Koblitz鍜孧iller鎻愬嚭灝嗘き鍦嗘洸綰跨敤浜庡瘑鐮佺畻娉曪紝鏍規嵁鏄湁闄愬煙涓婄殑妞渾鏇茬嚎涓婄殑鐐圭兢涓殑紱繪暎瀵規暟闂ECDLP銆侲CDLP鏄瘮鍥犲瓙鍒嗚В闂鏇撮毦鐨勯棶棰橈紝瀹冩槸鎸囨暟綰х殑闅懼害銆?/span>

鍘熺悊鈥斺旀き鍦嗘洸綰夸笂鐨勯毦棰?

 妞渾鏇茬嚎涓婄鏁e鏁伴棶棰楨CDLP瀹氫箟濡備笅錛氱粰瀹氱礌鏁皃鍜屾き鍦嗘洸綰縀錛屽Q錛漦P錛屽湪宸茬煡P錛孮 鐨勬儏鍐典笅姹傚嚭灝忎簬p鐨勬鏁存暟k銆傚彲浠ヨ瘉鏄庣敱k鍜孭璁$畻Q姣旇緝瀹規槗錛岃岀敱Q鍜孭璁$畻k鍒欐瘮杈冨洶闅俱?/span>

灝嗘き鍦嗘洸綰夸腑鐨勫姞娉曡繍綆椾笌紱繪暎瀵規暟涓殑妯′箻榪愮畻鐩稿搴旓紝灝嗘き鍦嗘洸綰夸腑鐨勪箻娉曡繍綆椾笌紱繪暎瀵規暟涓殑妯″箓榪愮畻鐩稿搴旓紝鎴戜滑灝卞彲浠ュ緩绔嬪熀浜庢き鍦嗘洸綰跨殑瀵瑰簲鐨勫瘑鐮佷綋鍒躲?/span>

渚嬪錛屽搴擠iffie-Hellman鍏挜緋葷粺錛屾垜浠彲浠ラ氳繃濡備笅鏂瑰紡鍦ㄦき鍦嗘洸綰夸笂浜堜互瀹炵幇錛氬湪E涓婇夊彇鐢熸垚鍏働錛岃姹傜敱P浜х敓鐨勭兢鍏冪礌瓚沖澶氾紝閫氫俊鍙屾柟A鍜孊鍒嗗埆閫夊彇a鍜宐錛宎鍜宐 浜堜互淇濆瘑錛屼絾灝哸P鍜宐P鍏紑錛孉鍜孊闂撮氫俊鐢ㄧ殑瀵嗛挜涓篴bP錛岃繖鏄涓夎呮棤娉曞緱鐭ョ殑銆?/span>

瀵瑰簲ELGamal瀵嗙爜緋葷粺鍙互閲囩敤濡備笅鐨勬柟寮忓湪妞渾鏇茬嚎涓婁簣浠ュ疄鐜幫細

灝嗘槑鏂噈宓屽叆鍒癊涓奝m鐐癸紝閫変竴鐐笲∈E錛屾瘡涓鐢ㄦ埛閮介変竴鏁存暟a錛?錛渁錛淣錛孨涓洪樁鏁板凡鐭ワ紝a淇濆瘑錛宎B鍏紑銆傛鍚慉閫乵錛屽彲閫佸幓涓嬮潰涓瀵規暟鍋訛細錛籯B錛孭m+k(aAB)錛斤紝k鏄殢鏈轟駭鐢熺殑鏁存暟銆侫鍙互浠巏B姹傚緱k(aAB)銆傞氳繃錛歅m+k(aAB)- k(aAB)=Pm鎭㈠Pm銆傚悓鏍峰搴擠SA錛岃冭檻濡備笅絳夊紡錛?/span>

K=kG  [鍏朵腑 K錛孏涓篍p(a,b)涓婄殑鐐癸紝k涓哄皬浜巒錛坣鏄偣G鐨勯樁錛夌殑鏁存暟]

涓嶉毦鍙戠幇錛岀粰瀹歬鍜孏錛屾牴鎹姞娉曟硶鍒欙紝璁$畻K寰堝鏄擄紱浣嗙粰瀹欿鍜孏錛屾眰k灝辯浉瀵瑰洶闅句簡銆?/span>

榪欏氨鏄き鍦嗘洸綰垮姞瀵嗙畻娉曢噰鐢ㄧ殑闅鵑銆傛垜浠妸鐐笹縐頒負鍩虹偣錛坆ase point錛夛紝k錛坘<n錛宯涓哄熀鐐笹鐨勯樁錛夌О涓虹鏈夊瘑閽ワ紙privte key錛夛紝K縐頒負鍏紑瀵嗛挜錛坧ublic key)銆?/span>

ECC涓嶳SA鐨勬瘮杈?

ECC鍜孯SA鐩告瘮錛屽湪璁稿鏂歸潰閮芥湁瀵圭粷瀵圭殑浼樺娍錛屼富瑕佷綋鐜板湪浠ヤ笅鏂歸潰錛?/span>

鎶楁敾鍑繪у己銆傜浉鍚岀殑瀵嗛挜闀垮害錛屽叾鎶楁敾鍑繪ц寮哄緢澶氬嶃?/span>

璁$畻閲忓皬錛屽鐞嗛熷害蹇侲CC鎬葷殑閫熷害姣擱SA銆丏SA瑕佸揩寰楀銆?/span>

瀛樺偍絀洪棿鍗犵敤灝忋侲CC鐨勫瘑閽ュ昂瀵稿拰緋葷粺鍙傛暟涓嶳SA銆丏SA鐩告瘮瑕佸皬寰楀錛屾剰鍛崇潃瀹冩墍鍗犵殑瀛樿串絀洪棿瑕佸皬寰楀銆傝繖瀵逛簬鍔犲瘑綆楁硶鍦↖C鍗′笂鐨勫簲鐢ㄥ叿鏈夌壒鍒噸瑕佺殑鎰忎箟銆?/span>

甯﹀瑕佹眰浣庛傚綋瀵歸暱娑堟伅榪涜鍔犺В瀵嗘椂錛屼笁綾誨瘑鐮佺郴緇熸湁鐩稿悓鐨勫甫瀹借姹傦紝浣嗗簲鐢ㄤ簬鐭秷鎭椂ECC甯﹀瑕佹眰鍗翠綆寰楀銆傚甫瀹借姹備綆浣縀CC鍦ㄦ棤綰跨綉緇滈鍩熷叿鏈夊箍娉涚殑搴旂敤鍓嶆櫙銆?/span>

ECC鐨勮繖浜涚壒鐐逛嬌瀹冨繀灝嗗彇浠SA錛屾垚涓洪氱敤鐨勫叕閽ュ姞瀵嗙畻娉曘傛瘮濡係ET鍗忚鐨勫埗瀹氳呭凡鎶婂畠浣滀負涓嬩竴浠ET鍗忚涓己鐪佺殑鍏挜瀵嗙爜綆楁硶銆?/span>

涓嬮潰涓ゅ紶琛ㄧず鏄疪SA鍜孍CC鐨勫畨鍏ㄦу拰閫熷害鐨勬瘮杈冦?/span>

鏀葷牬鏃墮棿(MIPS騫?

RSA/DSA(瀵嗛挜闀垮害)

ECC瀵嗛挜闀垮害

RSA/ECC瀵嗛挜闀垮害姣?/span>

104

512

106

5錛?

108

768

132

6錛?

1011

1024

160

7錛?

1020

2048

210

10錛?

1078

21000

600

35錛?

RSA鍜孍CC瀹夊叏妯¢暱寰楁瘮杈?/span>

鍔熻兘

Security Builder 1.2

BSAFE 3.0

163浣岴CC(ms)

1,023浣峈SA(ms)

瀵嗛挜瀵圭敓鎴?/span>

3.8

4,708.3

絳懼悕

2.1(ECNRA)

228.4

3.0(ECDSA)

璁よ瘉

9.9(ECNRA)

12.7

10.7(ECDSA)

Diffie鈥擧ellman瀵嗛挜浜ゆ崲

7.3

1,654.0

RSA鍜孍CC閫熷害姣旇緝

鏁e垪綆楁硶

鏁e垪鏄俊鎭殑鎻愮偧錛岄氬父鍏墮暱搴﹁姣斾俊鎭皬寰楀錛屼笖涓轟竴涓浐瀹氶暱搴︺傚姞瀵嗘у己鐨勬暎鍒椾竴瀹氭槸涓嶅彲閫嗙殑錛岃繖灝辨剰鍛崇潃閫氳繃鏁e垪緇撴灉錛屾棤娉曟帹鍑轟換浣曢儴鍒嗙殑鍘熷淇℃伅銆備換浣曡緭鍏ヤ俊鎭殑鍙樺寲錛屽摢鎬曚粎涓浣嶏紝閮藉皢瀵艱嚧鏁e垪緇撴灉鐨勬槑鏄懼彉鍖栵紝榪欑О涔嬩負闆穿鏁堝簲銆傛暎鍒楄繕搴旇鏄槻鍐茬獊鐨勶紝鍗蟲壘涓嶅嚭鍏鋒湁鐩稿悓鏁e垪緇撴灉鐨勪袱鏉′俊鎭傚叿鏈夎繖浜涚壒鎬х殑鏁e垪緇撴灉灝卞彲浠ョ敤浜庨獙璇佷俊鎭槸鍚﹁淇敼銆?/span>

鍗曞悜鏁e垪鍑芥暟涓鑸敤浜庝駭鐢熸秷鎭憳瑕侊紝瀵嗛挜鍔犲瘑絳夛紝甯歌鐨勬湁錛?/span>

l         MD5錛圡essage Digest Algorithm 5錛夛細鏄疪SA鏁版嵁瀹夊叏鍏徃寮鍙戠殑涓縐嶅崟鍚戞暎鍒楃畻娉曘?/span>

l         SHA錛圫ecure Hash Algorithm錛夛細鍙互瀵逛換鎰忛暱搴︾殑鏁版嵁榪愮畻鐢熸垚涓涓?60浣嶇殑鏁板鹼紱

SHA-1

鍦?993騫達紝瀹夊叏鏁e垪綆楁硶錛圫HA錛夌敱緹庡浗鍥藉鏍囧噯鍜屾妧鏈崗浼?NIST)鎻愬嚭錛屽茍浣滀負鑱旈偊淇℃伅澶勭悊鏍囧噯錛團IPS PUB 180錛夊叕甯冿紱1995騫村張鍙戝竷浜嗕竴涓慨璁㈢増FIPS PUB 180-1錛岄氬父縐頒箣涓篠HA-1銆係HA-1鏄熀浜嶮D4綆楁硶鐨勶紝騫朵笖瀹冪殑璁捐鍦ㄥ緢澶х▼搴︿笂鏄ā浠縈D4鐨勩傜幇鍦ㄥ凡鎴愪負鍏鐨勬渶瀹夊叏鐨勬暎鍒楃畻娉曚箣涓錛屽茍琚箍娉涗嬌鐢ㄣ?/span>

鍘熺悊

SHA-1鏄竴縐嶆暟鎹姞瀵嗙畻娉曪紝璇ョ畻娉曠殑鎬濇兂鏄帴鏀朵竴孌墊槑鏂囷紝鐒跺悗浠ヤ竴縐嶄笉鍙嗙殑鏂瑰紡灝嗗畠杞崲鎴愪竴孌碉紙閫氬父鏇村皬錛夊瘑鏂囷紝涔熷彲浠ョ畝鍗曠殑鐞嗚В涓哄彇涓涓茶緭鍏ョ爜錛堢О涓洪鏄犲皠鎴栦俊鎭級錛屽茍鎶婂畠浠漿鍖栦負闀垮害杈冪煭銆佷綅鏁板浐瀹氱殑杈撳嚭搴忓垪鍗蟲暎鍒楀鹼紙涔熺О涓轟俊鎭憳瑕佹垨淇℃伅璁よ瘉浠g爜錛夌殑榪囩▼銆?/span>

鍗曞悜鏁e垪鍑芥暟鐨勫畨鍏ㄦу湪浜庡叾浜х敓鏁e垪鍊肩殑鎿嶄綔榪囩▼鍏鋒湁杈冨己鐨勫崟鍚戞с傚鏋滃湪杈撳叆搴忓垪涓祵鍏ュ瘑鐮侊紝閭d箞浠諱綍浜哄湪涓嶇煡閬撳瘑鐮佺殑鎯呭喌涓嬮兘涓嶈兘浜х敓姝g‘鐨勬暎鍒楀鹼紝浠庤屼繚璇佷簡鍏跺畨鍏ㄦс傦汲錛肌灝嗚緭鍏ユ祦鎸夌収姣忓潡錛曪紤錛掍綅錛堬紪錛斾釜瀛楄妭錛夎繘琛屽垎鍧楋紝騫朵駭鐢燂紥錛愪釜瀛楄妭鐨勮縐頒負淇℃伅璁よ瘉浠g爜鎴栦俊鎭憳瑕佺殑杈撳嚭銆?/span>

璇ョ畻娉曡緭鍏ユ姤鏂囩殑鏈澶ч暱搴︿笉瓚呰繃264浣嶏紝浜х敓鐨勮緭鍑烘槸涓涓?60浣嶇殑鎶ユ枃鎽樿銆傝緭鍏ユ槸鎸?12 浣嶇殑鍒嗙粍榪涜澶勭悊鐨勩係HA-1鏄笉鍙嗙殑銆侀槻鍐茬獊錛屽茍鍏鋒湁鑹ソ鐨勯洩宕╂晥搴斻?/span>

閫氳繃鏁e垪綆楁硶鍙疄鐜版暟瀛楃鍚嶅疄鐜幫紝鏁板瓧絳懼悕鐨勫師鐞嗘槸灝嗚浼犻佺殑鏄庢枃閫氳繃涓縐嶅嚱鏁拌繍綆楋紙Hash錛夎漿鎹㈡垚鎶ユ枃鎽樿錛堜笉鍚岀殑鏄庢枃瀵瑰簲涓嶅悓鐨勬姤鏂囨憳瑕侊級錛屾姤鏂囨憳瑕佸姞瀵嗗悗涓庢槑鏂囦竴璧蜂紶閫佺粰鎺ュ彈鏂癸紝鎺ュ彈鏂瑰皢鎺ュ彈鐨勬槑鏂囦駭鐢熸柊鐨勬姤鏂囨憳瑕佷笌鍙戦佹柟鐨勫彂鏉ユ姤鏂囨憳瑕佽В瀵嗘瘮杈冿紝姣旇緝緇撴灉涓鑷磋〃紺烘槑鏂囨湭琚敼鍔紝濡傛灉涓嶄竴鑷磋〃紺烘槑鏂囧凡琚鏀廣?/span>

MAC (淇℃伅璁よ瘉浠g爜)灝辨槸涓涓暎鍒楃粨鏋滐紝鍏朵腑閮ㄥ垎杈撳叆淇℃伅鏄瘑鐮侊紝鍙湁鐭ラ亾榪欎釜瀵嗙爜鐨勫弬涓庤呮墠鑳藉啀嬈¤綆楀拰楠岃瘉MAC鐮佺殑鍚堟硶鎬с侻AC鐨勪駭鐢熷弬瑙佷笅鍥俱?/span>

杈撳叆淇℃伅

瀵嗙爜

鏁e垪鍑芥暟

淇℃伅璁よ瘉浠g爜

SHA-1涓嶮D5鐨勬瘮杈?

鍥犱負浜岃呭潎鐢盡D4瀵煎嚭錛孲HA-1鍜孧D5褰兼寰堢浉浼箋傜浉搴旂殑錛屼粬浠殑寮哄害鍜屽叾浠栫壒鎬т篃鏄浉浼鹼紝浣嗚繕鏈変互涓嬪嚑鐐逛笉鍚岋細

l         瀵瑰己琛屼緵緇欑殑瀹夊叏鎬э細鏈鏄捐憲鍜屾渶閲嶈鐨勫尯鍒槸SHA-1鎽樿姣擬D5鎽樿闀?2 浣嶃備嬌鐢ㄥ己琛屾妧鏈紝浜х敓浠諱綍涓涓姤鏂囦嬌鍏舵憳瑕佺瓑浜庣粰瀹氭姤鎽樿鐨勯毦搴﹀MD5鏄?128鏁伴噺綰х殑鎿嶄綔錛岃屽SHA-1鍒欐槸2160鏁伴噺綰х殑鎿嶄綔銆傝繖鏍鳳紝SHA-1瀵瑰己琛屾敾鍑繪湁鏇村ぇ鐨勫己搴︺?/span>

l         瀵瑰瘑鐮佸垎鏋愮殑瀹夊叏鎬э細鐢變簬MD5鐨勮璁★紝鏄撳彈瀵嗙爜鍒嗘瀽鐨勬敾鍑伙紝SHA-1鏄懼緱涓嶆槗鍙楄繖鏍風殑鏀誨嚮銆?/span>

l         閫熷害錛氬湪鐩稿悓鐨勭‖浠朵笂錛孲HA-1鐨勮繍琛岄熷害姣擬D5鎱€?/span>

瀵圭О涓庨潪瀵圭О綆楁硶姣旇緝

    浠ヤ笂緇艱堪浜嗕袱縐嶅姞瀵嗘柟娉曠殑鍘熺悊錛屾諱綋鏉ヨ涓昏鏈変笅闈㈠嚑涓柟闈㈢殑涓嶅悓錛?/span>

l         鍦ㄧ鐞嗘柟闈細鍏挜瀵嗙爜綆楁硶鍙渶瑕佽緝灝戠殑璧勬簮灝卞彲浠ュ疄鐜扮洰鐨勶紝鍦ㄥ瘑閽ョ殑鍒嗛厤涓婏紝涓よ呬箣闂寸浉宸竴涓寚鏁扮駭鍒紙涓涓槸n涓涓槸n2錛夈傛墍浠ョ閽ュ瘑鐮佺畻娉曚笉閫傚簲騫垮煙緗戠殑浣跨敤錛岃屼笖鏇撮噸瑕佺殑涓鐐規槸瀹冧笉鏀寔鏁板瓧絳懼悕銆?/span>

l         鍦ㄥ畨鍏ㄦ柟闈細鐢變簬鍏挜瀵嗙爜綆楁硶鍩轟簬鏈В鍐崇殑鏁板闅鵑錛屽湪鐮磋В涓婂嚑涔庝笉鍙兘銆傚浜庣閽ュ瘑鐮佺畻娉曪紝鍒頒簡AES铏借浠庣悊璁烘潵璇存槸涓嶅彲鑳界牬瑙g殑錛屼絾浠庤綆楁満鐨勫彂灞曡搴︽潵鐪嬨傚叕閽ユ洿鍏鋒湁浼樿秺鎬с?/span>

l         浠庨熷害涓婃潵鐪嬶細AES鐨勮蔣浠跺疄鐜伴熷害宸茬粡杈懼埌浜嗘瘡縐掓暟鍏嗘垨鏁板崄鍏嗘瘮鐗廣傛槸鍏挜鐨?00鍊嶏紝濡傛灉鐢ㄧ‖浠舵潵瀹炵幇鐨勮瘽榪欎釜姣斿煎皢鎵╁ぇ鍒?000鍊嶃?/span>

涓?          鍔犲瘑綆楁硶鐨勯夋嫨

鍓嶉潰鐨勭珷鑺傚凡緇忎粙緇嶄簡瀵圭О瑙e瘑綆楁硶鍜岄潪瀵圭О鍔犲瘑綆楁硶錛屾湁寰堝浜虹枒鎯戯細閭f垜浠湪瀹為檯浣跨敤鐨勮繃紼嬩腑絀剁珶璇ヤ嬌鐢ㄥ摢涓縐嶆瘮杈冨ソ鍛紵

鎴戜滑搴旇鏍規嵁鑷繁鐨勪嬌鐢ㄧ壒鐐規潵紜畾錛岀敱浜庨潪瀵圭О鍔犲瘑綆楁硶鐨勮繍琛岄熷害姣斿縐板姞瀵嗙畻娉曠殑閫熷害鎱㈠緢澶氾紝褰撴垜浠渶瑕佸姞瀵嗗ぇ閲忕殑鏁版嵁鏃訛紝寤鴻閲囩敤瀵圭О鍔犲瘑綆楁硶錛屾彁楂樺姞瑙e瘑閫熷害銆?/span>

瀵圭О鍔犲瘑綆楁硶涓嶈兘瀹炵幇絳懼悕錛屽洜姝ょ鍚嶅彧鑳介潪瀵圭О綆楁硶銆?/span>

鐢變簬瀵圭О鍔犲瘑綆楁硶鐨勫瘑閽ョ鐞嗘槸涓涓鏉傜殑榪囩▼錛屽瘑閽ョ殑綆$悊鐩存帴鍐沖畾鐫浠栫殑瀹夊叏鎬э紝鍥犳褰撴暟鎹噺寰堝皬鏃訛紝鎴戜滑鍙互鑰冭檻閲囩敤闈炲縐板姞瀵嗙畻娉曘?/span>

鍦ㄥ疄闄呯殑鎿嶄綔榪囩▼涓紝鎴戜滑閫氬父閲囩敤鐨勬柟寮忔槸錛氶噰鐢ㄩ潪瀵圭О鍔犲瘑綆楁硶綆$悊瀵圭О綆楁硶鐨勫瘑閽ワ紝鐒跺悗鐢ㄥ縐板姞瀵嗙畻娉曞姞瀵嗘暟鎹紝榪欐牱鎴戜滑灝遍泦鎴愪簡涓ょ被鍔犲瘑綆楁硶鐨勪紭鐐癸紝鏃㈠疄鐜頒簡鍔犲瘑閫熷害蹇殑浼樼偣錛屽張瀹炵幇浜嗗畨鍏ㄦ柟渚跨鐞嗗瘑閽ョ殑浼樼偣銆?/span>

濡傛灉鍦ㄩ夊畾浜嗗姞瀵嗙畻娉曞悗錛岄偅閲囩敤澶氬皯浣嶇殑瀵嗛挜鍛紵涓鑸潵璇達紝瀵嗛挜瓚婇暱錛岃繍琛岀殑閫熷害灝辮秺鎱紝搴旇鏍規嵁鐨勬垜浠疄闄呴渶瑕佺殑瀹夊叏綰у埆鏉ラ夋嫨錛屼竴鑸潵璇達紝RSA寤鴻閲囩敤1024浣嶇殑鏁板瓧錛孍CC寤鴻閲囩敤160浣嶏紝AES閲囩敤128涓哄嵆鍙?/span>

鍥?          瀵嗙爜瀛﹀湪鐜頒唬鐨勫簲鐢?

闅忕潃瀵嗙爜瀛﹀晢涓氬簲鐢ㄧ殑鏅強錛屽叕閽ュ瘑鐮佸鍙楀埌鍓嶆墍鏈湁鐨勯噸瑙嗐傞櫎浼犵粺鐨勫瘑鐮佸簲鐢ㄧ郴緇熷錛孭KI緋葷粺浠ュ叕閽ュ瘑鐮佹妧鏈負涓伙紝鎻愪緵鍔犲瘑銆佺鍚嶃佽璇併佸瘑閽ョ鐞嗐佸垎閰嶇瓑鍔熻兘銆?/span>

淇濆瘑閫氫俊錛氫繚瀵嗛氫俊鏄瘑鐮佸浜х敓鐨勫姩鍥犮備嬌鐢ㄥ叕縐侀挜瀵嗙爜浣撳埗榪涜淇濆瘑閫氫俊鏃訛紝淇℃伅鎺ユ敹鑰呭彧鏈夌煡閬撳搴旂殑瀵嗛挜鎵嶅彲浠ヨВ瀵嗚淇℃伅銆?/span>

鏁板瓧絳懼悕錛氭暟瀛楃鍚嶆妧鏈彲浠ヤ唬鏇夸紶緇熺殑鎵嬪啓絳懼悕錛岃屼笖浠庡畨鍏ㄧ殑瑙掑害鑰冭檻錛屾暟瀛楃鍚嶅叿鏈夊緢濂界殑闃蹭吉閫犲姛鑳姐傚湪鏀垮簻鏈哄叧銆佸啗浜嬮鍩熴佸晢涓氶鍩熸湁騫挎硾鐨勫簲鐢ㄧ幆澧冦?/span>

縐樺瘑鍏變韓錛氱瀵嗗叡浜妧鏈槸鎸囧皢涓涓瀵嗕俊鎭埄鐢ㄥ瘑鐮佹妧鏈垎鎷嗘垚n涓О涓哄叡浜洜瀛愮殑淇℃伅錛屽垎鍙戠粰n涓垚鍛橈紝鍙湁k(k≤n)涓悎娉曟垚鍛樼殑鍏變韓鍥犲瓙鎵嶅彲浠ユ仮澶嶈縐樺瘑淇℃伅錛屽叾涓換浣曚竴涓垨m(m≤k)涓垚鍛樺悎浣滈兘涓嶇煡閬撹縐樺瘑淇℃伅銆傚埄鐢ㄧ瀵嗗叡浜妧鏈彲浠ユ帶鍒朵換浣曢渶瑕佸涓漢鍏卞悓鎺у埗鐨勭瀵嗕俊鎭佸懡浠ょ瓑銆?/span>

璁よ瘉鍔熻兘錛氬湪鍏紑鐨勪俊閬撲笂榪涜鏁忔劅淇℃伅鐨勪紶杈擄紝閲囩敤絳懼悕鎶鏈疄鐜板娑堟伅鐨勭湡瀹炴с佸畬鏁存ц繘琛岄獙璇侊紝閫氳繃楠岃瘉鍏挜璇佷功瀹炵幇瀵歸氫俊涓諱綋鐨勮韓浠介獙璇併?/span>

瀵嗛挜綆$悊錛氬瘑閽ユ槸淇濆瘑緋葷粺涓洿涓鴻剢寮辮岄噸瑕佺殑鐜妭錛屽叕閽ュ瘑鐮佷綋鍒舵槸瑙e喅瀵嗛挜綆$悊宸ヤ綔鐨勬湁鍔涘伐鍏鳳紱鍒╃敤鍏挜瀵嗙爜浣撳埗榪涜瀵嗛挜鍗忓晢鍜屼駭鐢燂紝淇濆瘑閫氫俊鍙屾柟涓嶉渶瑕佷簨鍏堝叡浜瀵嗕俊鎭紱鍒╃敤鍏挜瀵嗙爜浣撳埗榪涜瀵嗛挜鍒嗗彂銆佷繚鎶ゃ佸瘑閽ユ墭綆°佸瘑閽ユ仮澶嶇瓑銆?/span>

鍩轟簬鍏挜瀵嗙爜浣撳埗鍙互瀹炵幇浠ヤ笂閫氱敤鍔熻兘浠ュ錛岃繕鍙互璁捐瀹炵幇浠ヤ笅鐨勭郴緇燂細瀹夊叏鐢靛瓙鍟嗗姟緋葷粺銆佺數瀛愮幇閲戠郴緇熴佺數瀛愰変婦緋葷粺銆佺數瀛愭嫑鎶曟爣緋葷粺銆佺數瀛愬僵紲ㄧ郴緇熺瓑銆?/span>

鍏挜瀵嗙爜浣撳埗鐨勪駭鐢熸槸瀵嗙爜瀛︾敱浼犵粺鐨勬斂搴溿佸啗浜嬬瓑搴旂敤棰嗗煙璧板悜鍟嗙敤銆佹皯鐢ㄧ殑鍩虹錛屽悓鏃朵簰鑱旂綉銆佺數瀛愬晢鍔$殑鍙戝睍涓哄瘑鐮佸鐨勫彂灞曞紑杈熶簡鏇翠負騫塊様鐨勫墠鏅?/span>

浜?          鍔犲瘑綆楁硶鐨勬湭鏉?

闅忕潃璁$畻鏂規硶鐨勬敼榪涳紝璁$畻鏈鴻繍琛岄熷害鐨勫姞蹇紝緗戠粶鐨勫彂灞曪紝瓚婃潵瓚婂鐨勭畻娉曡鐮磋В銆?/span>

鍦?004騫村浗闄呭瘑鐮佸浼氳(Crypto’2004)涓婏紝鏉ヨ嚜涓浗灞變笢澶у鐨勭帇灝忎簯鏁欐巿鍋氱殑鐮磋瘧MD5銆丠AVAL-128銆丮D4鍜孯IPEMD綆楁硶鐨勬姤鍛婏紝浠ゅ湪鍦虹殑鍥介檯欏跺皷瀵嗙爜瀛︿笓瀹墮兘涓轟箣闇囨儕錛屾剰鍛崇潃榪欎簺綆楁硶灝嗕粠搴旂敤涓窐姹般傞殢鍚庯紝SHA-1涔熻瀹e憡琚牬瑙c?/span>

鍘嗗彶涓婃湁涓夋瀵笵ES鏈夊獎鍝嶇殑鏀誨嚮瀹為獙銆?997騫達紝鍒╃敤褰撴椂鍚勫浗 7涓囧彴璁$畻鏈猴紝鍘嗘椂96澶╃牬瑙d簡DES鐨勫瘑閽ャ?998騫達紝鐢靛瓙杈瑰鍩洪噾浼氾紙EFF錛夌敤25涓囩編鍏冨埗閫犵殑涓撶敤璁$畻鏈猴紝鐢?6灝忔椂鐮磋В浜咲ES鐨勫瘑閽ャ?999騫達紝EFF鐢?2灝忔椂15鍒嗗畬鎴愪簡鐮磋В宸ヤ綔銆傚洜姝ゃ傛浘緇忔湁榪囧崜瓚婅礎鐚殑DES涔熶笉鑳芥弧瓚蟲垜浠棩鐩婂闀跨殑闇姹備簡銆?/span>

鏈榪戯紝涓緇勭爺絀朵漢鍛樻垚鍔熺殑鎶婁竴涓?12浣嶇殑鏁存暟鍒嗚В鍥犲瓙錛屽鍛婁簡RSA鐨勭牬瑙c?/span>

鎴戜滑璇存暟鎹殑瀹夊叏鏄浉瀵圭殑錛屽彲浠ヨ鍦ㄤ竴瀹氭椂鏈熶竴瀹氭潯浠朵笅鏄畨鍏ㄧ殑錛岄殢鐫紜歡鍜岀綉緇滅殑鍙戝睍錛屾垨鑰呮槸鍙︿竴涓帇灝忎簯鐨勫嚭鐜幫紝鐩墠鐨勫父鐢ㄥ姞瀵嗙畻娉曢兘鏈夊彲鑳藉湪鐭椂闂村唴琚牬瑙o紝閭f椂鎴戜滑涓嶅緱涓嶄嬌鐢ㄦ洿闀跨殑瀵嗛挜鎴栨洿鍔犲厛榪涚殑綆楁硶錛屾墠鑳戒繚璇佹暟鎹殑瀹夊叏錛屽洜姝ゅ姞瀵嗙畻娉曚緷鐒墮渶瑕佷笉鏂彂灞曞拰瀹屽杽錛屾彁渚涙洿楂樼殑鍔犲瘑瀹夊叏寮哄害鍜岃繍綆楅熷害銆?/span>

綰佃榪欎袱縐嶇畻娉曚竴涓粠DES鍒?DES鍐嶅埌AES錛屼竴涓粠RSA鍒癊CC銆傚叾鍙戝睍瑙掑害鏃犱笉鏄粠瀵嗛挜鐨勭畝鍗曟э紝鎴愭湰鐨勪綆寤夋э紝綆$悊鐨勭畝鏄撴э紝綆楁硶鐨勫鏉傛э紝淇濆瘑鐨勫畨鍏ㄦт互鍙婅綆楃殑蹇熸ц繖鍑犱釜鏂歸潰鍘昏冭檻銆傚洜姝わ紝鏈潵綆楁硶鐨勫彂灞曚篃蹇呭畾鏄粠榪欏嚑涓搴﹀嚭鍙戠殑錛岃屼笖鍦ㄥ疄闄呮搷浣滀腑寰寰鎶婅繖涓ょ綆楁硶緇撳悎璧鋒潵錛屼篃闇灝嗘潵涓縐嶉泦涓ょ綆楁硶浼樼偣浜庝竴韜殑鏂板瀷綆楁硶灝嗕細鍑虹幇錛屽埌閭d釜鏃跺欙紝鐢靛瓙鍟嗗姟鐨勫疄鐜板繀灝嗘洿鍔犵殑蹇嵎鍜屽畨鍏ㄣ?/span>



agun 2011-04-24 14:19 鍙戣〃璇勮
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鏁版嵁緇撴瀯涓庣畻娉曪紙2錛?/title><link>http://www.tkk7.com/agun/archive/2009/01/13/251128.html</link><dc:creator>agun</dc:creator><author>agun</author><pubDate>Tue, 13 Jan 2009 07:06:00 GMT</pubDate><guid>http://www.tkk7.com/agun/archive/2009/01/13/251128.html</guid><wfw:comment>http://www.tkk7.com/agun/comments/251128.html</wfw:comment><comments>http://www.tkk7.com/agun/archive/2009/01/13/251128.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/agun/comments/commentRss/251128.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/agun/services/trackbacks/251128.html</trackback:ping><description><![CDATA[     鎽樿: 鍥?鏍堝拰闃熷垪  鏍?鏍堝彧鍏佽璁塊棶涓涓暟鎹」:鍗蟲渶鍚庢彃鍏ョ殑鏁版嵁欏?縐誨嚭榪欎釜鏁版嵁欏瑰悗鎵嶈兘璁塊棶鍊掓暟絎簩涓彃鍏ョ殑鏁版嵁欏? 浠ユ綾繪帹.榪欑鏈哄埗鍦ㄤ笉灝戠紪紼嬬幆澧冧腑閮藉緢鏈夌敤. 澶ч儴鍒嗗井澶勭悊鍣ㄨ繍鐢ㄥ熀浜庢爤鐨勪綋緋葷粨鏋?褰撹皟鐢ㄤ竴涓柟娉曟椂,鎶婂畠鐨勮繑鍥炲湴鍧鍜屽弬鏁板帇鍏ユ爤,褰撴柟娉曠粨鏉?榪斿洖鏃?閭d簺鏁版嵁鍑烘爤.鏍堟搷浣滃氨宓屽叆鍦ㄥ井澶勭悊鍣ㄤ腑.   package stack; import...  <a href='http://www.tkk7.com/agun/archive/2009/01/13/251128.html'>闃呰鍏ㄦ枃</a><img src ="http://www.tkk7.com/agun/aggbug/251128.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/agun/" target="_blank">agun</a> 2009-01-13 15:06 <a href="http://www.tkk7.com/agun/archive/2009/01/13/251128.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>鏁版嵁緇撴瀯涓庣畻娉?1)http://www.tkk7.com/agun/archive/2008/08/01/219293.htmlagunagunFri, 01 Aug 2008 04:02:00 GMThttp://www.tkk7.com/agun/archive/2008/08/01/219293.htmlhttp://www.tkk7.com/agun/comments/219293.htmlhttp://www.tkk7.com/agun/archive/2008/08/01/219293.html#Feedback2http://www.tkk7.com/agun/comments/commentRss/219293.htmlhttp://www.tkk7.com/agun/services/trackbacks/219293.html闃呰鍏ㄦ枃

agun 2008-08-01 12:02 鍙戣〃璇勮
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