{
  "gex": {
    "1024": "EOF",
    "2048": {
      "g": 2,
      "p": 32317006071311007300338913926423828248817941241140239112842009751400741706634354222619689417363569347117901737909704191754605873209195028853758986185622153212175412514901774520270235796078236248884246189477587641105928646099411723245426622522193230540919037680524235519125679715870117001058055877651038861847280257976054903569732561526167081339361799541336476559160368317896729073178384589680639671900977202194168647225871031411336429319536193471636533209717077448227988588565369208645296636077250268955505928362751121174096972998068410554359584866583291642136218231078990999448652468262416972035911852507045361090559
    },
    "3072": {
      "g": 2,
      "p": 1044388881413152506679602719846529545831269060992135009022588756444338172022322690710444046669809783930111585737890362691860127079270495454517218673016928427459146001866885779762982229321192368303346235204368051010309155674155697460347176946394076535157284994895284821633700921811716738972451834979455897010306333468590751358365138782250372269117968985194322444535687415522007151638638141456178420621277822674995027990278673458629544391736919766299005511505446177668154446234882665961680796576903199116089347634947187778906528008004756692571666922964122566174582776707332452371001272163776841229318324903125740713574141005124561965913888899753461735347970011693256316751660678950830027510255804846105583465055446615090444309583050775808509297040039680057435342253926566240898195863631588888936364129920059308455669454034010391478238784189888594672336242763795138176353222845524644040094258962433613354036104643881925238489224010194193088911666165584229424668165441688927790460608264864204237717002054744337988941974661214699689706521543006262604535890998125752275942608772174376107314217749233048217904944409836238235772306749874396760463376480215133461333478395682746608242585133953883882226786118030184028136755970045385534758453247
    },
    "4096": {
      "g": 2,
      "p": 793615900079835967634369069912578119499809931166571906948352505588786907304532649558408599364600601372336431353398348577248470422359166681699460820044918150482370605561040181204791757391307625725086072553026033065781384621597329680382960709966104420891270613893160362451091068489611323828079281142737278508154355534098827286629826914817202054904597836826374519615874852541802599674879300825616614430321114032972009401935978726053433399432919385110535761801931955975287323224650793274738762782358920903365889112011898666080200356683371658244436622998361666180937329145178230860640278137274932453548630497008997032069225553304170335590671891519235298584527241923674662117244967478496967238485663490885419356406906315651781098313458394053233451879665983094308034990043654555376900539577588185341994471452092982375579350292947474147259438253223968639963493268422687246158605029864754751454613543419621530675409320050030615072122133156635024083015874553387284611505745828140164821693036837952868117977184128447447300309239859343391672519037638136448985188791231464337843715437488698830137590593320273907837588272173688837741367320422225561505427983692648968650530304171699356466968440466180014558746860906020846905800029999781783169935267
    },
    "6144": {
      "g": 2,
      "p": 29639548911338127173400152462049996686797972255982562269985260669490690831735558285013703821715505325199030638638154042721692109573955392420892658240613401445136126639335373852734993060246416611936241643050643065293774966468703412851609829707771597264955034140648584080454491264212451403191634145578499591191608164791147976417255729067711893592398746376815653063169587339819012901751614581279303123983730142741386252222096995983002606101747228387516032724037357115305601611299183932436935854179623015617696373823798543968688482674353936292613369939017270180304980121667319544383947223511711514605685925875211218188736566545414527965491851246568746209609753578501032416564407518408713186406249333361700245659859419044292820848374158499093476456296103594373214156193036307734975143708451914248614708578425592076096861633712021214309912030716284306947895462968993133327975199598644479881184424491708651209188756331079400851037596604348287424460874327746794935021634217523569110152265494336888416961923915349208587411345700686050751200832698299513951203773146323199204914972481521461378750615568181813743433225543863775719231554713238957362308989427014671283628844977634141861538974947208017805644091751318046697381066589385117762959637751499965455670330694505502505459215105761515603974731400162246701122120935511782437616020381821076420051380087535056619860772806379912700859533530871911909620256547562886989985140275825721596837217645502749980181324771236802927058212893966720310550095269523948650946861114010774452404692282281997148150548695925040132048868294517577968410733597236660521141325455574383076226208153048536150770162302414284111255376515111934439006527217586516595561800649124343711863561802359207735850813444576744644658889488029221525193571906495364486372468933883416474827973689972353761973471832979969003900631996355483140605021188467
    },
    "768": "EOF",
    "8192": {
      "g": 2,
      "p": 971393324664028441120143035296010671538821511874802257524652635011822316720244854189901918102376197473145387489263340690126379500669472089342508957915147741435847913328520879553388504518210567686108935652999591713311168340991366982000975886551413399209714512818007110289624860323110957178652295085093148735201703923800849883504448552096534966445321920029869335514140388855086830924095053643924684362222720427762100006848224251835735661805480468164973881656562426213998896782362586810941545642862040434285347079222515507555684208245773724448842745169485199583852312686298202905506721175962662361300670112822075772640029712260303176103837472924598345173454897764788813729923170323256485172956310829999858055432575324807657860658763948321110657490180500552276303611241359089090883299120992870061829501402547968696490219043347100069299882207251497971607128063502202658375121430972685367442556904254108512012311582318977472979191888663865970063228848333170574792252342430665243091520491481319260536791866156923301505054738958610030120536486401230410228403260405134257092785088810365728289318306948251031141810702683131496516523127285299976526165731128181516047116446215140078601271986026614465580233878356061798612785504916029651081918737124677552803093708847085097118473352674700067729284191836510484387718410180885566232232971135443008212894884732677542975411894798854463072794704358124050004265848313852834941202588415972756482146175078089193160059089155241693672978737874091824788175683911794323624553064472757960779937038516442254941403276698906427947557123581705625024583123183748780963607750766284098511669949950943085001782244670614998259136065943032822865623955583957630892364913346570023994827414400713096067909292376014383469684249812530270609136382537502759881794072247978757517670465935416466361515989507564078678479665371697488843739378684875448783466822045413308129674668766036379801103107821980371379560365164862074616470287523454543257258223458215503190474676336622332578454374659865727031915470076766310108774845444856336251373372733567696997192235138966053617112862511287144382241075438773998213994666380504000649095044107411353795518554437533307042647779358043966234308238432166422043629641820742553137785418830085346173350867964930075858828364160525456413978793439063904734120061700343929982922607705285856539244101738164572067361502826150261351738158274705000975437493325344815787851239983663332186320567560276135395916116378543176155660181457317059
    }
  },
  "host_keys": {
    "ssh-ed25519": {
      "algorithm": "ssh-ed25519",
      "ascii": "AAAAC3NzaC1lZDI1NTE5AAAAIAX2Cz6GXBm5c2XOe1PdOhXGkDhpcXQpA9ZHUTl0VdjS",
      "fingerprint": "d8:4e:b6:dc:fe:03:bb:e3:ee:69:d9:d0:61:77:f5:19",
      "n": 2696286225728057572434962242875302812718630567047459153249116661119643408594
    },
    "ssh-rsa": {
      "algorithm": "ssh-rsa",
      "ascii": "AAAAB3NzaC1yc2EAAAADAQABAAABAQCbv+wIvCvU+W/eV4858aadEtwuIfYT2lazD0faMRSFfqkAbH2ZCNnUTVb/KgQ32ldpyggX/RVtkVxreQ3qQqmmA/oqEszpzPAKmqE8tsdwulEcjFoS05sDjOyfrNsFNjmtBzV0n/LdwIFHNAYuQEMTXOqyEf0GxLjWgI5BuBh0VSnTcZ54nejwVFUDTMQOMTjTfsNWejkHykOYuqT6aRyYENPh+fQTECOSQbp/9dx4vWALDu7jUg2HHvESpI3FKNsur5VKhjbOusyAaZTq7rdxfK07pq3UV0VNBfFxSETWHGG9sx8n4w0iXc0nQkZUXe/O0Og52c8VfTgmW9Io8Zpf",
      "e": 65537,
      "fingerprint": "24:93:f9:40:07:f4:00:97:13:59:5c:6c:b7:60:08:aa",
      "n": 19661577539316159210775643174434845360190966118542356972377473649717846646366911736090436731813673212236792201910575906517066799179225230515763887539008742947906531390804894938496757199988513618817587410679712456919974244381818333200102231319349404101524346342296699054725452978559228645246257013215966222274631572790436393628186087649737042965846073534221982571333009011299898574169489613203212724834678608998984383866842498737123181910371804918810213334240715964656813908788569210645218008226038211679459093277454771808511312533252847060352768713179209486008861709682822759886252308973489773505753595867214493358687
    }
  },
  "ident": "SSH-2.0-OpenSSH_7.9p1 Debian-10+deb10u2",
  "ip": "54.186.50.116",
  "supported": {
    "compression_algorithms_client_to_server": [
      "none",
      "zlib@openssh.com"
    ],
    "compression_algorithms_server_to_client": [
      "none",
      "zlib@openssh.com"
    ],
    "encryption_algorithms_client_to_server": [
      "chacha20-poly1305@openssh.com",
      "aes256-ctr",
      "aes192-ctr"
    ],
    "encryption_algorithms_server_to_client": [
      "chacha20-poly1305@openssh.com",
      "aes256-ctr",
      "aes192-ctr"
    ],
    "kex_algorithms": [
      "curve25519-sha256@libssh.org",
      "diffie-hellman-group-exchange-sha256"
    ],
    "languages_client_to_server": [
      ""
    ],
    "languages_server_to_client": [
      ""
    ],
    "mac_algorithms_client_to_server": [
      "hmac-sha2-256-etm@openssh.com",
      "hmac-sha2-512-etm@openssh.com",
      "umac-128@openssh.com",
      "hmac-sha2-256",
      "hmac-sha2-512"
    ],
    "mac_algorithms_server_to_client": [
      "hmac-sha2-256-etm@openssh.com",
      "hmac-sha2-512-etm@openssh.com",
      "umac-128@openssh.com",
      "hmac-sha2-256",
      "hmac-sha2-512"
    ],
    "server_host_key_algorithms": [
      "rsa-sha2-512",
      "rsa-sha2-256",
      "ssh-rsa",
      "ssh-ed25519"
    ]
  }
}

SSH Report for zkpq.ca

Score: A

Server Parameters

Server version SSH-2.0-OpenSSH_7.9p1 Debian-10+deb10u2
Compression none
zlib@openssh.com

Host Keys

rsa-sha2-512 Generally considered secure a
2048-bit key
24:93:f9:40:07:f4:00:97:13:59:5c:6c:b7:60:08:aa
AAAAB3NzaC1yc2EAAAADAQABAAABAQCbv+wIvCvU+W/eV4858aadEtwuIfYT2laz
D0faMRSFfqkAbH2ZCNnUTVb/KgQ32ldpyggX/RVtkVxreQ3qQqmmA/oqEszpzPAK
mqE8tsdwulEcjFoS05sDjOyfrNsFNjmtBzV0n/LdwIFHNAYuQEMTXOqyEf0GxLjW
gI5BuBh0VSnTcZ54nejwVFUDTMQOMTjTfsNWejkHykOYuqT6aRyYENPh+fQTECOS
Qbp/9dx4vWALDu7jUg2HHvESpI3FKNsur5VKhjbOusyAaZTq7rdxfK07pq3UV0VN
BfFxSETWHGG9sx8n4w0iXc0nQkZUXe/O0Og52c8VfTgmW9Io8Zpf
a
rsa-sha2-256 Generally considered secure a
2048-bit key
24:93:f9:40:07:f4:00:97:13:59:5c:6c:b7:60:08:aa
AAAAB3NzaC1yc2EAAAADAQABAAABAQCbv+wIvCvU+W/eV4858aadEtwuIfYT2laz
D0faMRSFfqkAbH2ZCNnUTVb/KgQ32ldpyggX/RVtkVxreQ3qQqmmA/oqEszpzPAK
mqE8tsdwulEcjFoS05sDjOyfrNsFNjmtBzV0n/LdwIFHNAYuQEMTXOqyEf0GxLjW
gI5BuBh0VSnTcZ54nejwVFUDTMQOMTjTfsNWejkHykOYuqT6aRyYENPh+fQTECOS
Qbp/9dx4vWALDu7jUg2HHvESpI3FKNsur5VKhjbOusyAaZTq7rdxfK07pq3UV0VN
BfFxSETWHGG9sx8n4w0iXc0nQkZUXe/O0Og52c8VfTgmW9Io8Zpf
a
ssh-rsa Generally considered secure a
2048-bit key
24:93:f9:40:07:f4:00:97:13:59:5c:6c:b7:60:08:aa
AAAAB3NzaC1yc2EAAAADAQABAAABAQCbv+wIvCvU+W/eV4858aadEtwuIfYT2laz
D0faMRSFfqkAbH2ZCNnUTVb/KgQ32ldpyggX/RVtkVxreQ3qQqmmA/oqEszpzPAK
mqE8tsdwulEcjFoS05sDjOyfrNsFNjmtBzV0n/LdwIFHNAYuQEMTXOqyEf0GxLjW
gI5BuBh0VSnTcZ54nejwVFUDTMQOMTjTfsNWejkHykOYuqT6aRyYENPh+fQTECOS
Qbp/9dx4vWALDu7jUg2HHvESpI3FKNsur5VKhjbOusyAaZTq7rdxfK07pq3UV0VN
BfFxSETWHGG9sx8n4w0iXc0nQkZUXe/O0Og52c8VfTgmW9Io8Zpf
a
ssh-ed25519 Generally considered secure a
d8:4e:b6:dc:fe:03:bb:e3:ee:69:d9:d0:61:77:f5:19
AAAAC3NzaC1lZDI1NTE5AAAAIAX2Cz6GXBm5c2XOe1PdOhXGkDhpcXQpA9ZHUTl0
VdjS
a

Key Exchange

curve25519-sha256@libssh.org Generally considered secure a
diffie-hellman-group-exchange-sha256 Generally considered secure a
768 bit request Server refused the request

              
0
1024 bit request Server refused the request

              
0
2048 bit request 2048-bit group
FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74
020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437
4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED
EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF05
98DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB
9ED529077096966D670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B
E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718
3995497CEA956AE515D2261898FA051015728E5A8AACAA68FFFFFFFFFFFFFFFF
a
3072 bit request 4096-bit group
FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74
020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437
4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED
EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF05
98DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB
9ED529077096966D670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B
E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718
3995497CEA956AE515D2261898FA051015728E5A8AAAC42DAD33170D04507A33
A85521ABDF1CBA64ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7
ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6BF12FFA06D98A0864
D87602733EC86A64521F2B18177B200CBBE117577A615D6C770988C0BAD946E2
08E24FA074E5AB3143DB5BFCE0FD108E4B82D120A92108011A723C12A787E6D7
88719A10BDBA5B2699C327186AF4E23C1A946834B6150BDA2583E9CA2AD44CE8
DBBBC2DB04DE8EF92E8EFC141FBECAA6287C59474E6BC05D99B2964FA090C3A2
233BA186515BE7ED1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9
93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199FFFFFFFFFFFFFFFF
a
4096 bit request 4096-bit group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6144 bit request 6144-bit group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8192 bit request 8192-bit group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Message Authentication

hmac-sha2-256-etm@openssh.com Generally considered secure a
hmac-sha2-512-etm@openssh.com Generally considered secure a
umac-128@openssh.com Generally considered secure a
hmac-sha2-256 Generally considered secure a
hmac-sha2-512 Generally considered secure a

Encryption

chacha20-poly1305@openssh.com Generally considered secure a
aes256-ctr Generally considered secure a
aes192-ctr Generally considered secure a