ITU-T H :H.232 (2005/09) ITU-T H.235.1
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1 H ITUT (2005/09) /0 :H :H.232 ITUT H.235.1
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3 H H.199H.100 H.219H.200 H.229H.220 H.239H.230 H.259H.240 H.279H.260 H.299H.280 H.349H.300 H.359H.350 H.369H.360 H.499H.450 H.509H.500 H.519H.510 H.529H.520 H.539H.530 H.549H.540 H.559H.550 H.569H.560 H.619H.610 H (VDSL).
4
5 ITUT H :H.323 (RAS) H H.245 H RAS H (HMACSHAI96) H.323. / H.323 H.323..D/H.235 H.235.H H H ITUT H ( ) 16.A.8. i (2005/09) ITUT H.235.1
6 (ITUT)... (WTSA).. 1.(IEC) (ISO). " ".( ). " ".. " "... (TSB). ITU (2005/09) ITUT H ii
7 H (I ) HMACSHA (IA )... I... RAS H H H H RAS H H GeneralID sedersid iii (2005/09) ITUT H.235.1
8
9 ITUT H H.323 H RAS H.245 H H RAS HMACSHA196 1 H H.323 H (2003) ITUT H H.323 H.323 ) H ) H H.323 ) H. H.235/H.245 :H.323 :H.323 :H.323 (1998) 1 ITUT H.235.(H.245 (2000) 2 ITUT H.235 (2005).(H.245 (2005) ITUT H (H.245 (2005) ITUT H ITUT H (2005) ITUT H (2003) 10 ITUT H.245. (2003) ITUT H.323. (1999) ITUT H.323 ISDN 3 (1998) ITUT Q.931 ITUT X.800 (1991) (2005/09) ITUT H.235.1
10 1989 :ISO/IEC : :ISO/IEC (1994) ITUT X.803. (1995) ITUT X.810. : 1996 :ISO/IEC (1995) ITUT X.811. : 1996 :ISO/IEC :ISO/IEC FIPS PUB : 1994 (OIW) :HMAC IETF RFC 2104(1997) 2.2 [FIPSPUB1802] [OIW] [RFC2104]. [WEBOIDs] H.245/3 H.225.0/3 H.323/3 ITUT REC X.800 ISO/IEC X.811 ISO/IEC X.810 ISO/IEC X.803 ISO/IEC : : / (NAT).. / 3 (Abstract Syntax Notation One) 1 4 ASN.1 (2005/09) ITUT H
11 (Endpoint Identifier) (Endpoint) (Gatekeeper) (Gatekeeper Identifier) (Gatekeeper Request) (Hashed Message Authentication Code) (Integrity Check Value) (International Telecommunication Union) (Location Request) (Message Authentication Code) (Network Address Translation) (Registration, Admission and Status) (Object Identifier) (RealTime Protocol) (Secure Hash Algorithm) (Transmission Control Protocol) (Voice over Internet Protocol) (Universal Time Clock) EP EPID GK GKID GRQ HMAC ICV ITU LRQ MAC NAT OID RAS RTP SHA TCP UTC VOIP :. Shall. Should. May...H H H H H H.323 / H.235. (15 ).( ).H.235.0/5 ( A ) (2005/09) ITUT H.235.1
12 .(CryptoHashedToken)....( ) " ".. RAS / ( ). H ( ) (SHA1) : ( ) SHA1 =: :. 32 Random H.235 ClearToken. Random "" Random....Random /.. (timestamp/random). /.." ClearToken generalid " RAS H RAS (2005/09) ITUT H
13 H RAS. SendersID RAS H H H RAS. H RAS.Q.931 SET.( Q.932/Q.931 ) H RAS H.245 H H RAS HMACSHA196 H.323. / H.323 H.323. : H : H RAS. : ) H.235 :.( (MCU). ( ).. :. :. :.. :. : 5 (2005/09) ITUT H.235.1
14 . / : :.IMTC/ETSI/IETF... /NAT. 1. H.235.1/1 RTP ( ) H.245 HMACSHA196 HMACSHA196 HMACSHA196 H HMACSHA196 HMACSHA196 HMACSHA196. H RAS HMACSHA196 HMACSHA196 HMACSHA196 H.245 H.245. ) H RAS.(. H.323.(CryptoToken ClearToken ) H.235. /. algorithmoid tokenoid ).(15 /.( ) H.323 () H.245 H RAS H (2005/09) ITUT H
15 (HMACSHA196 1) ( ) FastStart H I.DiffieHellman.H H.245 H : H.323 H I H.245 Q.931 RAS.(H.323 ).(7 ) IA..(H.323 : ). /NAT H.323 / /.. RAS /.H.235.0/1.11 securitydenial xrq xrj (algorithmoid tokenoid ).. H SETUP. OID RELEASE COMPLETE (algorithmoid tokenoid).. securitydenied ) I H.235. (15 H.235 ICV.CryptoToken (2005/09) ITUT H.235.1
16 (I ) : I. ( 96) 12 HMACSHA196.H.235.0/ : H.225.0/RAS CryptoH323Token cryptohashedtoken CryptoToken nestedcryptotoken : / "A" tokenoid. H RAS : ClearToken hashedvals ClearToken "T" tokenoid.h.2356/5.8 DH. ClearToken ClearToken. timestamp. random.( ).( ) generalid. sendersid Connect Setup DH dhkey.. halfkey.(h.235.6/4 ) DHprime modsize.(h.235.6/4 ) DHgroup generator 2.{'0'B '0'B '0'B} generator modsize halfkey dhkey DH : HASHED token HMACSHA196 "U" algorithmoid.null params. HMACSHA196 hash tokenoid H RAS.( ) "A" CryptoHashedToken 7 (2005/09) ITUT H
17 H323UUPDU "A" tokenoid H H GK2 GK2 GK1 GK1 EP1 ) ( EP2 EP1 EP2 GK1 GK2 EP1 EP2.. 3.SHA1 (ISO/IEC ) 4. / 5 ( ) 6. ( ) tokenoid I 7.("A" ) EncodedGeneralToken /.(OID "A" ) ASN.1.(OID "B" ) ASN.1 ClearToken HMACSHA SHA1 96 HMACSHA196. text (SHA1 =) K RFC 2104." ". ("A" OID ) : 96 (1. RAS ASN.1 (2.H.225 RAS H (3. 1. HMACSHA196 ASN.1 (4.(7.2 ). ( (2005/09) ITUT H.235.1
18 :.ASN.1 (1. RV (2. RV (3 3. (6 (3 96.(2.7 ) HMACSHA196. RV.. RV (7 (3. ( ).(H.235.2/20.H.225.0/RAS IP (IA ) OID "B" ) (CryptoToken ClearToken) / /NAT (2005/09) ITUT H (4 (5 (6 (7 8.H.323..I : : H.225.0/RAS CryptoH323Token cryptohashedtoken CryptoToken nestedcryptotoken : : tokenoid (H.235.2/20 ) "B".ClearToken : ClearToken hashedvals : tokenoid OID (ClearToken ClearToken ) "T". timestamp. random ( ) ( ) generalid sendersid
19 ITUT H DH dhkey.connect Setup halfkey (H.235.6/4 ) DHprime modsize ) DHgroup generator.(h.235.6/4 generator modsize halfkey dhkey DH 1.{'0'B '0'B '0'B} : HASHED token HMACSHA196 "U" algorithmoid NULL params :.HMACSHA196 hash CryptoHashedToken tokenoid ClearToken.( ) "B" GK2 GK2 GK1 GK1 EP1 ) ( EP2 EP1 EP2 GK1 GK2 EP1 EP2..SHA1 (ISO/IEC ).ClearToken 2 3 ( ) ( ) 4..tokenOID OID "B" IA 5 token (ClearToken ) CryptoH323Token ClearToken ASN.1.cryptoHashedToken.ClearToken 2 1 H H.235."B" OID I 3 1. H ( ) H RAS.RAS /.H RAS / (2005/09) ITUT H.235.1
20 RAS/H H GK GK I H.235/1 GK GK 2.. GK1 EP EP1 RAS H H I H.235/2 EP2 GK. GK 3 II E. ) III II I. III.( H (2005/09) ITUT H
21 RAS/H H H.235.1_F03 I H.235/3 GK GK1 GK1 EP1 1 key3 key2 key1 20.EP2 GK2 GK2.H.235.0/ /. H245 H RAS. GK ( ) (3 ) (2 ) EP GK (1 ) GK RAS 1.9 EP1.GK1 ARQ RAS EP1 generalid GK random timestamp hashedvals ClearToken.sendersID.ARQ cryptoh323token CryptoToken cryptohashedtoken. ARQ "A" cryptohashedtoken tokenoid "U" algorithmoid cryptohashedtoken token HASHED EP1.NULL params HMACSHA196.RAS. 20 key1 HMACSHA196 CryptoToken cryptohashedtoken token hash EP1.GK1.ARQ cryptoh323token : ARQ GK1 random timestamp generalid.gk1 ARQ H Setup EP2 H EP1 GK1 random timestamp EP1 13 (2005/09) ITUT H.235.1
22 EP1.sendersID EP generalid.cleartoken dhkey generator modsize halfkey :DH CryptoToken cryptohashedtoken hashedvals ClearToken.Setup cryptoh323token "A" cryptohashedtoken tokenoid "U" algorithmoid cryptohashedtoken token HASHED. H EP1.NULL params HMACSHA key1 HMACSHA1.H (A) CryptoToken cryptohashedtoken token hash EP1.GK1 Setup.Setup cryptoh323token : Setup GK1 random timestamp generalid generator prime DH GK1 Setup GK1 random timestamp GK1 : GK2 Setup.GK2GK1 hashedvals ClearToken generalid sendersid GK2GK1 random timestamp DH GK1.GK1 sendersid GK2 generalid.cleartoken dhkey key2 H GK1.GK2 Setup token hash (algorithmoid="u") HMACSHA196 ClearToken Setup GK2.EP2 Setup Hash hashedvals H TerminalCapabilitySet H.245 EP1.GK1 H EP1.EP2 H H H.245 h323uupdu H.245.H : h323userinformation H h323messagebody TRUE h245tunnelling.h.245 PDU h245control (2005/09) ITUT H
23 "A" tokenoid H CryptoToken EP1 ClearToken "T" tokenoid generalid sendersid random timestamp hash HMACSHA196 "U" algorithmoid hashedvals.h H H.245 H : h323userinformation h323uupdu. facility : facility h323messagebody undefinedreason reason.h cryptotokens tokens TRUE h245tunnelling.h.245 PDU h245control.h facility CryptoToken EP1.GK1 EP1 facility ( H facility H ) GK1 GK2 H H H facility GK1.GK2 GK1 H EP2GK2 4.9 H.323 ( ).. ITUT H H.235.0/6.1.I H H.235 ((2000) ITUT H.235 ) 2 H.235. ((1998) ITUT H.235 ) 1 H.235.(15 ) :((1998) ITUT H.235 ) 1 H.235 ClearToken sendersid (2005/09) ITUT H.235.1
24 12 I CryptoToken LRQ GRQ H H I H.235 Crypto Tokens H RAS H RAS 1.13 H I H.235 Crypto Tokens H CallProceedingUUIE UUIEAlerting Facility UUIE Setup UUIE UUIEConnect InformationUUIE ProgressUUIE StatusUUIE Release CompleteUUIE SetupAcknowledgeUUIE StatusInquiryUUIE NotifyUUIE H.245 H.323 H.245. H FacilityUUIE GeneralID sedersid.generalid sendersid ClearToken (EPID) GK (GKID) GK sendersid generalid.ep. EPID GKID 2. / (2005/09) ITUT H
25 generalid GeneralID SendersID GKID NULL EPID GKID EPID GKID EPID GKID EPID GKID GKID sendersid NULL EPID NULL EPID GKID NULL EPID GKID GKID EPID GKID EPID GKID EPID GKID EPID H.235.1/2 Unicast GRQ Multicast GRQ GCF, GRJ Initial RRQ RCF RRJ URQ, UCF, URJ, BRQ, BCF, BRJ, DRQ, DCF, DRJ, NSM, RIP, SCI, SCR, XRS (EPtoGK) URQ, UCF, URJ, BRQ, BCF, BRJ, DRQ, DCF, DRJ, NSM, RIP, SCI, SCR, XRS (GKtoEP) ARQ, IRQ, RAI ACF, ARJ, BCF, LCF, LRJ, IRR, IRQ, RAC, LCF, LRJ, IACK, INAK Unicast LRQ (EPtoGK) Unicast LRQ (GKtoGK) Multicast LRQ.. = EPID = GKID.([WEBOIDs] [OIW] CryptoTokentokenOID I RAS.( ) H ID ClearToken. ClearToken IA I.H.235.6/5.8 OID I.HMACSHA196 ) OID 3.H.235v2 H.235v1 H.235.1/3 {itut (0) recommendation (0) h (8) 235 version (0) 2 1} {itut (0) recommendation (0) h (8) 235 version (0) 1 1} {itut (0) recommendation (0) h (8) 235 version (0) 3 9} {itut (0) recommendation (0) h (8) 235 version (0) 2 9} {itut (0) recommendation (0) h (8) 235 version (0) 2 5} {itut (0) recommendation (0) h (8) 235 version (0) 1 5} {itut (0) recommendation (0) h (8) 235 version (0) 2 6} {itut (0) recommendation (0) h (8) 235 version (0) 1 6} 15 "A" "E" "T" "U" 17 (2005/09) ITUT H.235.1
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