P 葛生　和人.indd

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1 ID IC PKI Public Key Infrastructure PKI IC IC 1 IC ID OS ID ID PKI OS IC IC Windows OS

2 OS Windows 2000 Windows XP winlogon.exe GINA Graphical Identification and Authentication API API [1] GINA winlogon.exe 1 gina.dll 1 GINA Wlx GINA API WlxLoggedOutSAS winlogon. exe IC PIN ID gina.dll 1 Windows [ ] regedt32.exe Key ID IC PKI

3 Key HKEY_LOCAL_MACHINES Software Microsoft Windows NT CurrentVersion Winlogon GinaDLL REG_SZ [gina.dll ] IC IC PIN Personal Identification Number PIN PKI PIN Public Key Private Key 2 IC IC PIN PKI

4 ID ID 3 1 PIN IC ID PKI IC PKI CA CRL LDAP ID CA CRL

5 PKI 4 / 1 PKI PKI IC 3 3 IC 5 PC IC IC PC PC IC PC PC

6 3 2 IC OpenSSL Simple CA PKI 6 CA CA OS CA IC CRL CRL CRL CRL

7 PKI IC 4 5 IC PC OS Windows Crypto API[2][3] Java java.security, Java Card[4] javacard.security 1 Windows Crypto API 1://******* Process of certificate verification using Crypto API ******* 2:pSubjectContext=CertCreateCertificateContext(X509_ASN_ENCODING,pszBuf, CertFile_Size); 3: 4:CertAddCertificateContextToStore(hCertStore,pSubjectContext, CERT_STORE_ADD_REPLACE_EXISTING, 0); 5: 6:do{ 7: dwflags=cert_store_revocation_flag CERT_STORE_SIGNATURE_FLAG CERT_STORE_TIME_VALIDITY_FLAG; 8: pissuercontext=certgetissuercertificatefromstore(hcertstore, psubjectcontext,0,dwflags); 9: CertFreeCertificateContext(pSubjectContext); 10: if(pissuercontext){ 11: psubjectcontext = pissuercontext; 12: if(dwflags & CERT_STORE_NO_CRL_FLAG) 13: dwflags&=~(cert_store_no_crl_flag CERT_STORE_REVOCATION_FLAG); 14: if(dwflags) break; 15: }else if(getlasterror()==crypt_e_self_signed) return TRUE; 16:}while (pissuercontext); 17:return FALSE;

$4:CertAddCertificateContextToStore(hCertStore,pSubjectContext, CERT_STORE_ADD_REPLACE_EXISTING, 0); 5: 6:do{ 7: dwflags=cert_store_revocation_flag CERT_STORE_SIGNATURE_FLAG$

8 Java Java Card 1://******* Signature verification using Java Security ******* 2:CertificateFactory cf = CertificateFactory.getInstance("X.509"); 3:X509Certificate cert = (X509Certificate)cf.generateCertificate(inStream); 4: 5:String alg = "SHA1withRSA"; 6:Signature signalg = Signature.getInstance(alg); 7: 8:signAlg.initVerify(cert.getPublicKey()); 9:signAlg.update(verimsg); 10:boolean result = signalg.verify(sign); ://******* Signature and its verification using Java Card Security ******* 2:m_priv1024_rsakey= (RSAPrivateKey) KeyBuilder.buildKey (KeyBuilder.TYPE_RSA_PRIVATE,KeyBuilder.LENGTH_RSA_1024, false ); 3:m_signature= Signature.getInstance( Signature.ALG_RSA_SHA_PKCS1,false ); 4:m_signature.init( m_priv1024_rsakey, Signature.MODE_SIGN ); 5:m_signature.sign( buffer, d0, (short)(buffer.length), buffer, (short)0 ); 2 RSA 3 4 5

getPublicKey()); 9:signAlg.update(verimsg); 10:boolean result = signalg.

9 V PKI PC IC IC IC Java Card TM Java Card TM IC Java Java Java Card TM 7 [5] Java Card TM Java PC Java Card IC 8 Java Card PC class Java Card converter CAPconverted applet IC

10 Java Card Java Card TM PIN PIN 4 PIN IC PIN Java Card TM 1:PIN 2:pin = new OwnerPIN(PIN_TRY_LIMIT, MAX_PIN_SIZE); 3:pin.update(bArray, boffset, blength); 4:register(); 5:if ( pin.check(buffer, ISO7816.OFFSET_CDATA,byteRead) == false ) ISOException.throwIt (SW_VERIFICATION_FAILED); 6: 7:m_signature= Signature.getInstance( Signature.ALG_RSA_SHA_PKCS1,false ); 8:m_signature.init( m_priv1024_rsakey, Signature.MODE_SIGN ); 9:m_signature.sign( buffer, d0, (short)(buffer.length), buffer, (short)0 ); 2 4 PIN 5 PIN Java Card TM PC

throwIt (SW_VERIFICATION_FAILED); 6: 7:m_signature= Signature.getInstance( Signature.ALG_RSA_SHA_PKCS1,false ); 8:m_signature.

11 APDU Application Protocol Data Units ISO7816-4[6] 9 IC APDU IC APDU 2 PC IC API PC/SC IC Windows IC API 5 Windows API IC APDU 1:IC APDU 2:SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &hcontext); 3: 4:SCardConnect(hContext, rsreaders[0].szreader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0 SCARD_PROTOCOL_T1, &hcard,&dwactiveprotocol); 5: 6:DWORD dwrecvlength_rtrv_cert_size = 4; 7:BYTE btrecvbuffer_rtrv_cert_size[4]; 8:BYTE apdu_rtrv_cert_size[5] = {0x90, 0x20, 0x10, 0x00, 0x02}; 9: 10:SCardTransmit(hCard,SCARD_PCI_T1,apdu_rtrv_cert_size,sizeof (apdu_rtrv_cert_size),null,btrecvbuffer_rtrv_cert_size, &dwrecvlength_rtrv_cert_size); 11:LengCertificate=(DWORD)((btRecvBuffer_rtrv_cert_size[0]<<8) +btrecvbuffer_rtrv_cert_size[1]);

$apdu_rtrv_cert_size[5] = {0x90, 0x20, 0x10, 0x00, 0x02}; 9: 10:SCardTransmit(hCard,SCARD_PCI_T1,apdu_rtrv_cert_size,sizeof (apdu_rtrv_cert_size),null,btrecvbuffer_rtrv_cert_size,$

12 2 IC 4 10 APDU 11 APDU ID [7] 10 ID IC LDAP ID 3 LDAP APDU PC Windows API 6 Windows API LDAP OpenLDAP 2.3 LDAPv3 [8] CA CRL 1:LDAP CA 2:ldap_search_ext_s(ld,"ou=PrivateCa,dc=sample,dc=net", LDAP_SCOPE_SUBTREE, "(cn=admin)", NULL,0,NULL,NULL,NULL,0, &result); 3:for(e=ldap_first_entry(ld,result); e!=null; e=ldap_next_entry(ld,e)){ 4: for(a=ldap_first_attribute(ld,e,&ber); a!=null; a=ldap_next_attribute (ld,e,ber)){ 5: if( (strcmp(a,"cacertificate;binary")==0) (strcmp(a,"certificaterevocationlist;binary")==0)){ 6: bvals = ldap_get_values_len(ld, e, a); 7: if(bvals!= NULL){

$&result); 3:for(e=ldap_first_entry(ld,result); e!=null; e=ldap_next_entry(ld,e)){ 4: for(a=ldap_first_attribute(ld,e,&ber); a!$

13 8: for (i = 0; bvals[i]!= NULL; i++){ 9: if(strcmp(a,"cacertificate;binary")==0) { 10: pszbuf_cacert_size = bvals[i]->bv_len; 11: pszbuf_cacert = (BYTE *)malloc(pszbuf_cacert_size); 12: for (j=0; (unsigned long) j<bvals[i]->bv_len; ++j) 13: pszbuf_cacert[j] = bvals[i]->bv_val[j]; 14: } 15: 16: } 17: } 18: } 19: else{ 20: 21: } 22: } 23:} 2 PrivateCA 3 23 CA CRL PKI Windows 2000 Linux Fedora core 3OpenLDAP2.3 ID CA CRL LDAP Windows 2000 Windows 11- a IC IC 11- bpin Windows PIN IC LDAP

$bvals[i]->bv_val[j]; 14: } 15: 16: } 17: } 18: } 19: else{ 20: 21: } 22: } 23:} 2 PrivateCA 3 23 CA CRL PKI Windows 2000$

14 a IC IC PKI CSI [ 1 ] GINA, [ 2 ] CryptoAPI, /default.asp?url=/library/ en-us/dncapi/html/msdn_cryptapi.asp [ 3 ] John Viega and Matt Messier, C/C++ vol.3, pp , 2005 [ 4 ] Java Card TM, software/consumer-embedded/card/ [ 5 ] Zhiqun Chen, "Java Card TM Technology for Smart Cards", Addison Wesley [ 6 ] ISO7816-4, [ 7 ] LDAP Super Expertpp , [ 8 ] OpenLDAP,

234-238, 2005 [ 4 ] Java Card TM, http://jp.sun.

IC カードによる共有端末認証システムの構築について名古屋大学情報連携基盤センター葛生和人第一回東海地区 CSI 報告会 2006 年 9 月 22 日 ( 金 ) 名古屋大学情報連携基盤センター強固なセキュリティを持ったログオン認証 ID + パスワード IC カード + PKI PIN コ

IC カードによる共有端末認証システムの構築について名古屋大学情報連携基盤センター葛生和人第一回東海地区 CSI 報告会 2006 年 9 月 22 日 ( 金 ) 名古屋大学情報連携基盤センター強固なセキュリティを持ったログオン認証 ID + パスワード IC カード + PKI PIN コ IC カードによる共有端末認証システムの構築について名古屋大学情報連携基盤センター葛生和人強固なセキュリティを持ったログオン認証 ID + パスワード IC カード + PKI JavaCard JavaCardSecurity PC/SC APDU 通信 etc. 認証局 (CA) 証明書, 署名, 検証 etc. 1 Windows 系パソコンのログオン認証 GINA:GraphicalIdentificationaNdAuthentification

P 葛生 和人.indd

P 葛生　和人.indd