diff options
Diffstat (limited to 'lib/ssl/test/ssl_test_lib.erl')
| -rw-r--r-- | lib/ssl/test/ssl_test_lib.erl | 207 |
1 files changed, 97 insertions, 110 deletions
diff --git a/lib/ssl/test/ssl_test_lib.erl b/lib/ssl/test/ssl_test_lib.erl index 3b9073ac0b..565beebcea 100644 --- a/lib/ssl/test/ssl_test_lib.erl +++ b/lib/ssl/test/ssl_test_lib.erl @@ -384,10 +384,6 @@ cert_options(Config) -> "badkey.pem"]), PskSharedSecret = <<1,2,3,4,5,6,7,8,9,10,11,12,13,14,15>>, - SNIServerACertFile = filename:join([proplists:get_value(priv_dir, Config), "a.server", "cert.pem"]), - SNIServerAKeyFile = filename:join([proplists:get_value(priv_dir, Config), "a.server", "key.pem"]), - SNIServerBCertFile = filename:join([proplists:get_value(priv_dir, Config), "b.server", "cert.pem"]), - SNIServerBKeyFile = filename:join([proplists:get_value(priv_dir, Config), "b.server", "key.pem"]), [{client_opts, [{cacertfile, ClientCaCertFile}, {certfile, ClientCertFile}, {keyfile, ClientKeyFile}]}, @@ -445,46 +441,34 @@ cert_options(Config) -> {server_bad_cert, [{ssl_imp, new},{cacertfile, ServerCaCertFile}, {certfile, BadCertFile}, {keyfile, ServerKeyFile}]}, {server_bad_key, [{ssl_imp, new},{cacertfile, ServerCaCertFile}, - {certfile, ServerCertFile}, {keyfile, BadKeyFile}]}, - {sni_server_opts, [{sni_hosts, [ - {"a.server", [ - {certfile, SNIServerACertFile}, - {keyfile, SNIServerAKeyFile} - ]}, - {"b.server", [ - {certfile, SNIServerBCertFile}, - {keyfile, SNIServerBKeyFile} - ]} - ]}]} + {certfile, ServerCertFile}, {keyfile, BadKeyFile}]} | Config]. -make_dsa_cert(Config) -> - {ServerCaCertFile, ServerCertFile, ServerKeyFile} = - make_cert_files("server", Config, dsa, dsa, "", []), - {ClientCaCertFile, ClientCertFile, ClientKeyFile} = - make_cert_files("client", Config, dsa, dsa, "", []), - [{server_dsa_opts, [{ssl_imp, new},{reuseaddr, true}, - {cacertfile, ServerCaCertFile}, - {certfile, ServerCertFile}, {keyfile, ServerKeyFile}]}, - {server_dsa_verify_opts, [{ssl_imp, new},{reuseaddr, true}, - {cacertfile, ClientCaCertFile}, - {certfile, ServerCertFile}, {keyfile, ServerKeyFile}, - {verify, verify_peer}]}, - {client_dsa_opts, [{ssl_imp, new}, - {cacertfile, ClientCaCertFile}, - {certfile, ClientCertFile}, {keyfile, ClientKeyFile}]}, - {server_srp_dsa, [{ssl_imp, new},{reuseaddr, true}, - {cacertfile, ServerCaCertFile}, - {certfile, ServerCertFile}, {keyfile, ServerKeyFile}, - {user_lookup_fun, {fun user_lookup/3, undefined}}, - {ciphers, srp_dss_suites()}]}, - {client_srp_dsa, [{ssl_imp, new}, - {srp_identity, {"Test-User", "secret"}}, - {cacertfile, ClientCaCertFile}, - {certfile, ClientCertFile}, {keyfile, ClientKeyFile}]} - | Config]. - +make_dsa_cert(Config) -> + CryptoSupport = crypto:supports(), + case proplists:get_bool(dss, proplists:get_value(public_keys, CryptoSupport)) of + true -> + ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), "dsa"]), + ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), "dsa"]), + KeyGenSpec = key_gen_info(dsa, dsa), + + GenCertData = x509_test:gen_test_certs([{digest, sha} | KeyGenSpec]), + [{server_config, ServerConf}, + {client_config, ClientConf}] = + x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase), + + [{server_dsa_opts, ServerConf}, + {server_dsa_verify_opts, [{verify, verify_peer} | ServerConf]}, + {client_dsa_opts, ClientConf}, + {server_srp_dsa, [{user_lookup_fun, {fun user_lookup/3, undefined}}, + {ciphers, srp_dss_suites()} | ServerConf]}, + {client_srp_dsa, [{srp_identity, {"Test-User", "secret"}} + | ClientConf]} + | Config]; + false -> + Config + end. make_rsa_cert_chains(ChainConf, Config, Suffix) -> CryptoSupport = crypto:supports(), KeyGenSpec = key_gen_info(rsa, rsa), @@ -541,6 +525,11 @@ key_gen_spec(Role, rsa) -> [{list_to_atom(Role ++ "_key_gen"), hardcode_rsa_key(1)}, {list_to_atom(Role ++ "_key_gen_chain"), [hardcode_rsa_key(2), hardcode_rsa_key(3)]} + ]; +key_gen_spec(Role, dsa) -> + [{list_to_atom(Role ++ "_key_gen"), hardcode_dsa_key(1)}, + {list_to_atom(Role ++ "_key_gen_chain"), [hardcode_dsa_key(2), + hardcode_dsa_key(3)]} ]. make_ecdsa_cert(Config) -> CryptoSupport = crypto:supports(), @@ -638,41 +627,6 @@ make_ecdh_rsa_cert(Config) -> Config end. -make_mix_cert(Config) -> - {ServerCaCertFile, ServerCertFile, ServerKeyFile} = make_cert_files("server", Config, dsa, - rsa, "mix", []), - {ClientCaCertFile, ClientCertFile, ClientKeyFile} = make_cert_files("client", Config, dsa, - rsa, "mix", []), - [{server_mix_opts, [{ssl_imp, new},{reuseaddr, true}, - {cacertfile, ServerCaCertFile}, - {certfile, ServerCertFile}, {keyfile, ServerKeyFile}]}, - {server_mix_verify_opts, [{ssl_imp, new},{reuseaddr, true}, - {cacertfile, ClientCaCertFile}, - {certfile, ServerCertFile}, {keyfile, ServerKeyFile}, - {verify, verify_peer}]}, - {client_mix_opts, [{ssl_imp, new}, - {cacertfile, ClientCaCertFile}, - {certfile, ClientCertFile}, {keyfile, ClientKeyFile}]} - | Config]. - -make_cert_files(RoleStr, Config, Alg1, Alg2, Prefix, Opts) -> - Alg1Str = atom_to_list(Alg1), - Alg2Str = atom_to_list(Alg2), - CaInfo = {CaCert, _} = erl_make_certs:make_cert([{key, Alg1}| Opts]), - {Cert, CertKey} = erl_make_certs:make_cert([{key, Alg2}, {issuer, CaInfo} | Opts]), - CaCertFile = filename:join([proplists:get_value(priv_dir, Config), - RoleStr, Prefix ++ Alg1Str ++ "_cacerts.pem"]), - CertFile = filename:join([proplists:get_value(priv_dir, Config), - RoleStr, Prefix ++ Alg2Str ++ "_cert.pem"]), - KeyFile = filename:join([proplists:get_value(priv_dir, Config), - RoleStr, Prefix ++ Alg2Str ++ "_key.pem"]), - - der_to_pem(CaCertFile, [{'Certificate', CaCert, not_encrypted}]), - der_to_pem(CertFile, [{'Certificate', Cert, not_encrypted}]), - der_to_pem(KeyFile, [CertKey]), - {CaCertFile, CertFile, KeyFile}. - - start_upgrade_server(Args) -> Result = spawn_link(?MODULE, run_upgrade_server, [Args]), receive @@ -983,16 +937,10 @@ ecdh_rsa_suites(Version) -> end, available_suites(Version)). -openssl_rsa_suites(CounterPart) -> +openssl_rsa_suites() -> Ciphers = ssl:cipher_suites(openssl), - Names = case is_sane_ecc(CounterPart) of - true -> - "DSS | ECDSA"; - false -> - "DSS | ECDHE | ECDH" - end, - lists:filter(fun(Str) -> string_regex_filter(Str, Names) - end, Ciphers). + lists:filter(fun(Str) -> string_regex_filter(Str, "RSA") + end, Ciphers) -- openssl_ecdh_rsa_suites(). openssl_dsa_suites() -> Ciphers = ssl:cipher_suites(openssl), @@ -1026,11 +974,11 @@ string_regex_filter(_Str, _Search) -> false. anonymous_suites(Version) -> - Suites = ssl_cipher:anonymous_suites(Version), + Suites = [ssl_cipher:erl_suite_definition(S) || S <- ssl_cipher:anonymous_suites(Version)], ssl_cipher:filter_suites(Suites). psk_suites(Version) -> - Suites = ssl_cipher:psk_suites(Version), + Suites = [ssl_cipher:erl_suite_definition(S) || S <- ssl_cipher:psk_suites(Version)], ssl_cipher:filter_suites(Suites). psk_anon_suites(Version) -> @@ -1062,7 +1010,7 @@ srp_dss_suites() -> ssl_cipher:filter_suites(Suites). rc4_suites(Version) -> - Suites = ssl_cipher:rc4_suites(Version), + Suites = [ssl_cipher:erl_suite_definition(S) || S <- ssl_cipher:rc4_suites(Version)], ssl_cipher:filter_suites(Suites). des_suites(Version) -> @@ -1167,6 +1115,10 @@ init_tls_version(Version, Config) -> NewConfig = proplists:delete(protocol_opts, proplists:delete(protocol, Config)), [{protocol, tls} | NewConfig]. +init_tls_version_default(Config) -> + %% Remove non default options that may be left from other test groups + proplists:delete(protocol_opts, proplists:delete(protocol, Config)). + sufficient_crypto_support(Version) when Version == 'tlsv1.2'; Version == 'dtlsv1.2' -> CryptoSupport = crypto:supports(), @@ -1276,7 +1228,7 @@ is_fips(_) -> false. cipher_restriction(Config0) -> - Version = tls_record:protocol_version(protocol_version(Config0)), + Version = protocol_version(Config0, tuple), case is_sane_ecc(openssl) of false -> Opts = proplists:get_value(server_opts, Config0), @@ -1367,6 +1319,12 @@ version_flag('dtlsv1.2') -> version_flag('dtlsv1') -> "-dtls1". +filter_suites([Cipher | _] = Ciphers, AtomVersion) when is_list(Cipher)-> + filter_suites([ssl_cipher:openssl_suite(S) || S <- Ciphers], + AtomVersion); +filter_suites([Cipher | _] = Ciphers, AtomVersion) when is_binary(Cipher)-> + filter_suites([ssl_cipher:erl_suite_definition(S) || S <- Ciphers], + AtomVersion); filter_suites(Ciphers0, AtomVersion) -> Version = tls_version(AtomVersion), Supported0 = ssl_cipher:suites(Version) @@ -1429,7 +1387,7 @@ supports_ssl_tls_version(sslv2 = Version) -> Exe = "openssl", Args = ["s_client", VersionFlag], Port = ssl_test_lib:portable_open_port(Exe, Args), - do_supports_ssl_tls_version(Port) + do_supports_ssl_tls_version(Port, "") end; supports_ssl_tls_version(Version) -> @@ -1437,23 +1395,26 @@ supports_ssl_tls_version(Version) -> Exe = "openssl", Args = ["s_client", VersionFlag], Port = ssl_test_lib:portable_open_port(Exe, Args), - do_supports_ssl_tls_version(Port). + do_supports_ssl_tls_version(Port, ""). -do_supports_ssl_tls_version(Port) -> +do_supports_ssl_tls_version(Port, Acc) -> receive - {Port, {data, "u"}} -> - false; - {Port, {data, "unknown option" ++ _}} -> - false; - {Port, {data, Data}} -> - case lists:member("error", string:tokens(Data, ":")) of - true -> - false; - false -> - do_supports_ssl_tls_version(Port) - end + {Port, {data, Data}} -> + case Acc ++ Data of + "unknown option" ++ _ -> + false; + Error when length(Error) >= 11 -> + case lists:member("error", string:tokens(Data, ":")) of + true -> + false; + false -> + do_supports_ssl_tls_version(Port, Error) + end; + _ -> + do_supports_ssl_tls_version(Port, Acc ++ Data) + end after 1000 -> - true + true end. ssl_options(Option, Config) when is_atom(Option) -> @@ -1498,6 +1459,7 @@ ct_log_supported_protocol_versions(Config) -> clean_env() -> application:unset_env(ssl, protocol_version), + application:unset_env(ssl, dtls_protocol_version), application:unset_env(ssl, session_lifetime), application:unset_env(ssl, session_cb), application:unset_env(ssl, session_cb_init_args), @@ -1517,10 +1479,14 @@ is_psk_anon_suite({psk, _,_}) -> true; is_psk_anon_suite({dhe_psk,_,_}) -> true; +is_psk_anon_suite({ecdhe_psk,_,_}) -> + true; is_psk_anon_suite({psk, _,_,_}) -> true; is_psk_anon_suite({dhe_psk, _,_,_}) -> true; +is_psk_anon_suite({ecdhe_psk, _,_,_}) -> + true; is_psk_anon_suite(_) -> false. @@ -1540,7 +1506,7 @@ tls_version(Atom) -> tls_record:protocol_version(Atom). hardcode_rsa_key(1) -> - {'RSAPrivateKey',0, + {'RSAPrivateKey', 'two-prime', 23995666614853919027835084074500048897452890537492185072956789802729257783422306095699263934587064480357348855732149402060270996295002843755712064937715826848741191927820899197493902093529581182351132392364214171173881547273475904587683433713767834856230531387991145055273426806331200574039205571401702219159773947658558490957010003143162250693492642996408861265758000254664396313741422909188635443907373976005987612936763564996605457102336549804831742940035613780926178523017685712710473543251580072875247250504243621640157403744718833162626193206685233710319205099867303242759099560438381385658382486042995679707669, 17, 11292078406990079542510627799764728892919007311761028269626724613049062486316379339152594792746853873109340637991599718616598115903530750002688030558925094987642913848386305504703012749896273497577003478759630198199473669305165131570674557041773098755873191241407597673069847908861741446606684974777271632545629600685952292605647052193819136445675100211504432575554351515262198132231537860917084269870590492135731720141577986787033006338680118008484613510063003323516659048210893001173583018220214626635609151105287049126443102976056146630518124476470236027123782297108342869049542023328584384300970694412006494684657, @@ -1552,7 +1518,7 @@ hardcode_rsa_key(1) -> asn1_NOVALUE}; hardcode_rsa_key(2) -> -{'RSAPrivateKey',0, +{'RSAPrivateKey', 'two-prime', 21343679768589700771839799834197557895311746244621307033143551583788179817796325695589283169969489517156931770973490560582341832744966317712674900833543896521418422508485833901274928542544381247956820115082240721897193055368570146764204557110415281995205343662628196075590438954399631753508888358737971039058298703003743872818150364935790613286541190842600031570570099801682794056444451081563070538409720109449780410837763602317050353477918147758267825417201591905091231778937606362076129350476690460157227101296599527319242747999737801698427160817755293383890373574621116766934110792127739174475029121017282777887777, 17, 18832658619343853622211588088997845201745658451136447382185486691577805721584993260814073385267196632785528033211903435807948675951440868570007265441362261636545666919252206383477878125774454042314841278013741813438699754736973658909592256273895837054592950290554290654932740253882028017801960316533503857992358685308186680144968293076156011747178275038098868263178095174694099811498968993700538293188879611375604635940554394589807673542938082281934965292051746326331046224291377703201248790910007232374006151098976879987912446997911775904329728563222485791845480864283470332826504617837402078265424772379987120023773, @@ -1564,7 +1530,7 @@ hardcode_rsa_key(2) -> asn1_NOVALUE}; hardcode_rsa_key(3) -> -{'RSAPrivateKey',0, +{'RSAPrivateKey', 'two-prime', 25089040456112869869472694987833070928503703615633809313972554887193090845137746668197820419383804666271752525807484521370419854590682661809972833718476098189250708650325307850184923546875260207894844301992963978994451844985784504212035958130279304082438876764367292331581532569155681984449177635856426023931875082020262146075451989132180409962870105455517050416234175675478291534563995772675388370042873175344937421148321291640477650173765084699931690748536036544188863178325887393475703801759010864779559318631816411493486934507417755306337476945299570726975433250753415110141783026008347194577506976486290259135429, 17, 8854955455098659953931539407470495621824836570223697404931489960185796768872145882893348383311931058684147950284994536954265831032005645344696294253579799360912014817761873358888796545955974191021709753644575521998041827642041589721895044045980930852625485916835514940558187965584358347452650930302268008446431977397918214293502821599497633970075862760001650736520566952260001423171553461362588848929781360590057040212831994258783694027013289053834376791974167294527043946669963760259975273650548116897900664646809242902841107022557239712438496384819445301703021164043324282687280801738470244471443835900160721870265, @@ -1575,7 +1541,7 @@ hardcode_rsa_key(3) -> 15068630434698373319269196003209754243798959461311186548759287649485250508074064775263867418602372588394608558985183294561315208336731894947137343239541687540387209051236354318837334154993136528453613256169847839789803932725339395739618592522865156272771578671216082079933457043120923342632744996962853951612, asn1_NOVALUE}; hardcode_rsa_key(4) -> -{'RSAPrivateKey',0, +{'RSAPrivateKey', 'two-prime', 28617237755030755643854803617273584643843067580642149032833640135949799721163782522787597288521902619948688786051081993247908700824196122780349730169173433743054172191054872553484065655968335396052034378669869864779940355219732200954630251223541048434478476115391643898092650304645086338265930608997389611376417609043761464100338332976874588396803891301015812818307951159858145399281035705713082131199940309445719678087542976246147777388465712394062188801177717719764254900022006288880246925156931391594131839991579403409541227225173269459173129377291869028712271737734702830877034334838181789916127814298794576266389, 17, 26933870828264240605980991639786903194205240075898493207372837775011576208154148256741268036255908348187001210401018346586267012540419880263858569570986761169933338532757527109161473558558433313931326474042230460969355628442100895016122589386862163232450330461545076609969553227901257730132640573174013751883368376011370428995523268034111482031427024082719896108094847702954695363285832195666458915142143884210891427766607838346722974883433132513540317964796373298134261669479023445911856492129270184781873446960437310543998533283339488055776892320162032014809906169940882070478200435536171854883284366514852906334641, @@ -1586,7 +1552,7 @@ hardcode_rsa_key(4) -> 34340318160575773065401929915821192439103777558577109939078671096408836197675640654693301707202885840826672396546056002756167635035389371579540325327619480512374920136684787633921441576901246290213545161954865184290700344352088099063404416346968182170720521708773285279884132629954461545103181082503707725012, asn1_NOVALUE}; hardcode_rsa_key(5) -> -{'RSAPrivateKey',0, +{'RSAPrivateKey', 'two-prime', 26363170152814518327068346871197765236382539835597898797762992537312221863402655353436079974302838986536256364057947538018476963115004626096654613827403121905035011992899481598437933532388248462251770039307078647864188314916665766359828262009578648593031111569685489178543405615478739906285223620987558499488359880003693226535420421293716164794046859453204135383236667988765227190694994861629971618548127529849059769249520775574008363789050621665120207265361610436965088511042779948238320901918522125988916609088415989475825860046571847719492980547438560049874493788767083330042728150253120940100665370844282489982633, 17, 10855423004100095781734025182257903332628104638187370093196526338893267826106975733767797636477639582691399679317978398007608161282648963686857782164224814902073240232370374775827384395689278778574258251479385325591136364965685903795223402003944149420659869469870495544106108194608892902588033255700759382142132115013969680562678811046675523365751498355532768935784747314021422035957153013494814430893022253205880275287307995039363642554998244274484818208792520243113824379110193356010059999642946040953102866271737127640405568982049887176990990501963784502429481034227543991366980671390566584211881030995602076468001, @@ -1597,7 +1563,7 @@ hardcode_rsa_key(5) -> 40624877259097915043489529504071755460170951428490878553842519165800720914888257733191322215286203357356050737713125202129282154441426952501134581314792133018830748896123382106683994268028624341502298766844710276939303555637478596035491641473828661569958212421472263269629366559343208764012473880251174832392, asn1_NOVALUE}; hardcode_rsa_key(6) -> -{'RSAPrivateKey',0, +{'RSAPrivateKey', 'two-prime', 22748888494866396715768692484866595111939200209856056370972713870125588774286266397044592487895293134537316190976192161177144143633669641697309689280475257429554879273045671863645233402796222694405634510241820106743648116753479926387434021380537483429927516962909367257212902212159798399531316965145618774905828756510318897899298783143203190245236381440043169622358239226123652592179006905016804587837199618842875361941208299410035232803124113612082221121192550063791073372276763648926636149384299189072950588522522800393261949880796214514243704858378436010975184294077063518776479282353562934591448646412389762167039, 17, 6690849557313646092873144848490175032923294179369428344403739373566349639495960705013115437616262686628622409110644753287395336362844012263914614494257428655751435080307550548130951000822418439531068973600535325512837681398082331290421770994275730420566916753796872722709677121223470117509210872101652580854566448661533030419787125312956120661097410038933324613372774190658239039998357548275441758790939430824924502690997433186652165055694361752689819209062683281242276039100201318203707142383491769671330743466041394101421674581185260900666085723130684175548215193875544802254923825103844262661010117443222587769713, @@ -1608,6 +1574,27 @@ hardcode_rsa_key(6) -> 81173034184183681160439870161505779100040258708276674532866007896310418779840630960490793104541748007902477778658270784073595697910785917474138815202903114440800310078464142273778315781957021015333260021813037604142367434117205299831740956310682461174553260184078272196958146289378701001596552915990080834227, asn1_NOVALUE}. +hardcode_dsa_key(1) -> + {'DSAPrivateKey',0, + 99438313664986922963487511141216248076486724382260996073922424025828494981416579966171753999204426907349400798052572573634137057487829150578821328280864500098312146772602202702021153757550650696224643730869835650674962433068943942837519621267815961566259265204876799778977478160416743037274938277357237615491, + 1454908511695148818053325447108751926908854531909, + 20302424198893709525243209250470907105157816851043773596964076323184805650258390738340248469444700378962907756890306095615785481696522324901068493502141775433048117442554163252381401915027666416630898618301033737438756165023568220631119672502120011809327566543827706483229480417066316015458225612363927682579, + 48598545580251057979126570873881530215432219542526130654707948736559463436274835406081281466091739849794036308281564299754438126857606949027748889019480936572605967021944405048011118039171039273602705998112739400664375208228641666852589396502386172780433510070337359132965412405544709871654840859752776060358, + 1457508827177594730669011716588605181448418352823}; +hardcode_dsa_key(2) -> + {'DSAPrivateKey',0, + 145447354557382582722944332987784622105075065624518040072393858097520305927329240484963764783346271194321683798321743658303478090647837211867389721684646254999291098347011037298359107547264573476540026676832159205689428125157386525591130716464335426605521884822982379206842523670736739023467072341958074788151, + 742801637799670234315651916144768554943688916729, + 79727684678125120155622004643594683941478642656111969487719464672433839064387954070113655822700268007902716505761008423792735229036965034283173483862273639257533568978482104785033927768441235063983341565088899599358397638308472931049309161811156189887217888328371767967629005149630676763492409067382020352505, + 35853727034965131665219275925554159789667905059030049940938124723126925435403746979702929280654735557166864135215989313820464108440192507913554896358611966877432546584986661291483639036057475682547385322659469460385785257933737832719745145778223672383438466035853830832837226950912832515496378486927322864228, + 801315110178350279541885862867982846569980443911}; +hardcode_dsa_key(3) -> + {'DSAPrivateKey',0, + 99438313664986922963487511141216248076486724382260996073922424025828494981416579966171753999204426907349400798052572573634137057487829150578821328280864500098312146772602202702021153757550650696224643730869835650674962433068943942837519621267815961566259265204876799778977478160416743037274938277357237615491, + 1454908511695148818053325447108751926908854531909, + 20302424198893709525243209250470907105157816851043773596964076323184805650258390738340248469444700378962907756890306095615785481696522324901068493502141775433048117442554163252381401915027666416630898618301033737438756165023568220631119672502120011809327566543827706483229480417066316015458225612363927682579, + 48598545580251057979126570873881530215432219542526130654707948736559463436274835406081281466091739849794036308281564299754438126857606949027748889019480936572605967021944405048011118039171039273602705998112739400664375208228641666852589396502386172780433510070337359132965412405544709871654840859752776060358, + 1457508827177594730669011716588605181448418352823}. dtls_hello() -> [1, |