{
  "gex": {
    "1024": {
      "g": 2,
      "p": 154067266396939542649477786989185246326972329227354082117465153687565448762165312464217098764495735400448920074568765934646366109539476631699137604671343954500193640444570473536623188627358578439774307376164792106148598666338930933731316602274985044716679151360726594778343503292557570515634106485347378117507
    },
    "2048": {
      "g": 5,
      "p": 27563193761019613247548371515177384316847824084225106575480908301740963029577884518805700103933765448879089250317670699933971166856529337504768586720594415576825536007382135694131716027111714061100841761749822020754156419143810430565148835961970956363111754308338096248801098929382458584828572042568833550036021892768381735827949705413332687427015324170803133885714537808622879781418431109894681339228328166404895494906516248573754651270645933469226846071724872274977032213549845864353958976270035758083448230949065801706382212021676539586755532340818103650910602731316026640461852485541663126139304916917947307600767
    },
    "3072": {
      "g": 2,
      "p": 5140771135006312636317753087690150777056602014012377267562206849083564460435361131947860519660491834134255596660834746356729494024265640751030812220753061459932017775854688521222089980489579327491092600300775081636246704542027248839443360190701451098221815997513224503017953475685091508582069717212184201253911763633296246701028497913550828312719253688395067096242433660289932059788120127395296814625600006586480541467992346585835189376261941690520653673663851141177352711383596009861567213442932833433407865624856301260421377458033054679321442011995336326893933683693303319797024715151338655090349809418993251203798979912008629627704670065148197000233126055841634698220084434534397514427510893659046357452119840847620293337065480085109029076116455312375380567425248305366957166565936070109109181200188379113412700961483239454696971079273331141531570185240576196168896237468617982055189482835894256749640573967498674122962779
    },
    "4096": {
      "g": 5,
      "p": 976951295264818423814145019577337453096150708929133947663617059780531823187267669457274376239922990754565873607169297360130845448890187786417291079028249783343691789029846601268451296215690213314903456083541355333577410427311881447971805367287874755208402111333422968368451979967217112619004757239404543838081056965194576102381572120583895519909508502077839433017599462987534790187172217008688898403493699506006892763021401178801686094777652418481981973197885366829425516267223099115519867835559992580606475071986737636731536139151008910349139549914420903767704918705510727888937892264183257416630361488728759325665204922817978833631452181366703578751176215779036039400699827111940559816332514905675631290180232033979396358604934908399487110559746953814910475411470091844316895516479895890496829257363243806878927318973639089666158411572986024413229580732689027574150715667833718324676812987145613179913019883840857808049641967605742131995345962765802322558278466405708472375287654348164304900134737497706307550004663308994669291588750190858473103742825980828087081827089508559983559563488318286456702229164823620033123459216766651465604306009327293755006068253526975443215723337098424636939323727106901403320003615330611943258206183
    },
    "6144": {
      "g": 2,
      "p": 28670036454806703861177710080835332331930467388214333783639650115162808796682530669471492642591215523115384359329143985097804755479990919750116315893810887548209881507618134490827779695994579801974944330238483811387014252979631658089560284924614113794428727981121867924787310634742888344120906103954106951053676447057288510963679709647950382648091330356237103607555327525617606310539236883975182912896226593707904833363356716455880661148117175182332888617503152919525644296232757879356561346285252846226533999776917746774544120808268727842167410961206695495779520900668164375264099457594649954127868912240338429524825451783762057070403604585098655502434376892552983291649135978214881046777737893995146999532263140016757302157347492531022441069746568098017599611945510865543991803596088725364132116210069263268198176927456516163801082222933925484938914515586156155129959233337491573862182922111259900069919069372938338133269864386091723555509699281398276468631872687159014337640004658366704031954769211036290677304836343513929986169447357413513704348973456413346898991721327809073454410380316406741899171623668747143410708955923451994568471881358720577482417090820734291156525184898034711814482791216197341079462124809756474410949656862099011582537276761025112907367929720959798313677363442823397904643257274617514134736626714745158260727653821174764104715501766809375712151810872494765913332633121080896735366419480092125378255823527129334372142924469328190405946050620929928358747106317079080489444931780761523664354238019404154112459019686198556666053208302420238270669563333164393627162915732648261305672475611518427891914405044028125108193306493070946292308649048542446647055046274865214348478915891274873511250632626444652002080703060770390325487967304425834693087645002138657374707485374518723074611005864082577999993945714701852359926368501043
    },
    "768": "EOF",
    "8192": {
      "g": 2,
      "p": 992312500240772409105126820975295176523680196528725844644019483054165649798727908451573978162285821487539588972454930631659358812501604119848584060894359381356445798650271403530730170913112657590339866242678097468377068417257909256005627014916613429644827997874152610060069606567717048054912067018015312379433096320709581510321489234080692573950677607367129310631940602655800132142280654320233730326683010861025399625988986612482106016100241143810560826489245971895763222043818783434528517220256177974280483932761927054756589679543033283794681053950383199052020400155516972006523835640112734112762560215795289164083565918340823278401829524647897223209189693377955528114634790719467840726433460807493332747539157427925215795320501484834045023905320018783267363065077092600647931935050933741518688980045582839122474408932487964998700971155165030221296802290131289611692118016183594314221678754783883559408985914738906761598597440115641482275950484942034862594500459865236656524997197365634563666606833651063814732916348422972072849277408449072514394175145966946340544938724993969370039821856588378735681970922642428579213200500306630866107116647470812747900620289866056410266024848928980710526492008902069712111962564810158579273929959581042267292232457165741029330338385924572160744293226050598891082139130666671985586770839139989118630329527405018187196881959260989231785182027403644990421745461439416986032021295679693830074533483770823783119231587412657410407585592559726753285937181265853380972392139872377884532965927190906649408760853863769128399778877883279781890596556384794351553123657798237777099961577025578307051967150474092469500408002268082280560935358207216976848666503129467822171288272338864477831081804126313163331485476405116346585072993895486284788318948424535450690038739132285278010822594740365582792996269451517345993793692607117345139926964620192202379996369564595627997308645458392280056717187467038991233836022580571345733836486399196656017139757143883088296849976318688020484998559687811377232519744476070564485915743647515360215353091587871930000136627613230059822469492998445796448313795217722634079078900806903947690674351812192043868664428027153219873138848578818846952307125913907258380963958134463274750338628332517022990171602141186699757235874858840933404155168512268535081178574660169452834192846832996719283610803060058877191659216103326017879918765582329408502100290464460476060798038831183912278283557768412909297093305456073099
    }
  },
  "host_keys": {
    "ssh-ed25519": {
      "algorithm": "ssh-ed25519",
      "ascii": "AAAAC3NzaC1lZDI1NTE5AAAAIGGig1N2uaLuZZNBeZsJ9WJBWxgMRoXgIMLOdnZW4XeC",
      "fingerprint": "97:43:c8:fc:16:08:12:c4:cf:fc:d3:bf:65:b8:5f:cf",
      "n": 44161481916021157694034048526142410784085128060934523714955041038724428298114
    },
    "ssh-rsa": {
      "algorithm": "ssh-rsa",
      "ascii": "AAAAB3NzaC1yc2EAAAABIwAAAQEAxmwcHEwigjMuh8kDMpStcEkI0uubKAR8j7FENDkV/c3+WKCUDNk91ggbuD/05L8KfIbAA8HuUITiSNproGJaZ9UjikGTXWqB0IwUsLpifYRh0cjI1/u8jJNljynTa9xubkusYdASO1flfp2Ir3iqgD4GnPm5jI3WAqFDqgREoLcnttCpjoNmawjkHhV8pGotnLLXhHW3wv4xGMxUgPbyYTAWt8aXBPQ10MtMB5YeK4hw7Ba0MCH6JGom8kgX/MhVB0jB9rlnmGPkZpXAd9+vxTjZUlF1YPIzx0Z+ro0FALq5z7wJg0vig1am8HKnyqqhOeth4KEOUd9BBNfCYx0p6w==",
      "e": 35,
      "fingerprint": "b3:5d:c1:fb:94:69:ad:a4:1b:b9:b9:51:95:52:2a:1d",
      "n": 25048495315930507765837919557148519973715356770388346893568952160721647398728424587898540536324094492863351062489417657817139497886081640034668611452833338418881386195349894590132091262941968177529647292199215596071921580789091640804539476318147208605287722628195407227198677828263231611317640612209836583400186292320573572631379676638341908975933178946755006752680503851842007944014363062163494942263093452956056978247228533707000526454064609610331791028640551933523616522604079294321387533938522405160647047770143465805736201518715979053379004728378800712040435420525457844911005850866944759015516849662439194438123
    }
  },
  "ident": "SSH-2.0-OpenSSH_7.4",
  "ip": "139.184.24.30",
  "supported": {
    "compression_algorithms_client_to_server": [
      "none",
      "zlib@openssh.com"
    ],
    "compression_algorithms_server_to_client": [
      "none",
      "zlib@openssh.com"
    ],
    "encryption_algorithms_client_to_server": [
      "aes256-ctr",
      "aes192-ctr",
      "aes128-ctr",
      "aes256-gcm@openssh.com",
      "aes128-gcm@openssh.com",
      "chacha20-poly1305@openssh.com"
    ],
    "encryption_algorithms_server_to_client": [
      "aes256-ctr",
      "aes192-ctr",
      "aes128-ctr",
      "aes256-gcm@openssh.com",
      "aes128-gcm@openssh.com",
      "chacha20-poly1305@openssh.com"
    ],
    "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-sha1",
      "hmac-sha2-512",
      "hmac-sha2-512-etm@openssh.com",
      "hmac-sha2-256-etm@openssh.com",
      "umac-128-etm@openssh.com"
    ],
    "mac_algorithms_server_to_client": [
      "hmac-sha1",
      "hmac-sha2-512",
      "hmac-sha2-512-etm@openssh.com",
      "hmac-sha2-256-etm@openssh.com",
      "umac-128-etm@openssh.com"
    ],
    "server_host_key_algorithms": [
      "ssh-ed25519",
      "ssh-rsa",
      "rsa-sha2-512",
      "rsa-sha2-256"
    ]
  }
}

SSH Report for unix.susx.ac.uk

Score: F

Server Parameters

Server version SSH-2.0-OpenSSH_7.4
Compression none
zlib@openssh.com

Host Keys

ssh-ed25519 Generally considered secure a
97:43:c8:fc:16:08:12:c4:cf:fc:d3:bf:65:b8:5f:cf
AAAAC3NzaC1lZDI1NTE5AAAAIGGig1N2uaLuZZNBeZsJ9WJBWxgMRoXgIMLOdnZW
4XeC
a
ssh-rsa Generally considered secure a
2048-bit key
b3:5d:c1:fb:94:69:ad:a4:1b:b9:b9:51:95:52:2a:1d
AAAAB3NzaC1yc2EAAAABIwAAAQEAxmwcHEwigjMuh8kDMpStcEkI0uubKAR8j7FE
NDkV/c3+WKCUDNk91ggbuD/05L8KfIbAA8HuUITiSNproGJaZ9UjikGTXWqB0IwU
sLpifYRh0cjI1/u8jJNljynTa9xubkusYdASO1flfp2Ir3iqgD4GnPm5jI3WAqFD
qgREoLcnttCpjoNmawjkHhV8pGotnLLXhHW3wv4xGMxUgPbyYTAWt8aXBPQ10MtM
B5YeK4hw7Ba0MCH6JGom8kgX/MhVB0jB9rlnmGPkZpXAd9+vxTjZUlF1YPIzx0Z+
ro0FALq5z7wJg0vig1am8HKnyqqhOeth4KEOUd9BBNfCYx0p6w==
a
rsa-sha2-512 Generally considered secure a
2048-bit key
b3:5d:c1:fb:94:69:ad:a4:1b:b9:b9:51:95:52:2a:1d
AAAAB3NzaC1yc2EAAAABIwAAAQEAxmwcHEwigjMuh8kDMpStcEkI0uubKAR8j7FE
NDkV/c3+WKCUDNk91ggbuD/05L8KfIbAA8HuUITiSNproGJaZ9UjikGTXWqB0IwU
sLpifYRh0cjI1/u8jJNljynTa9xubkusYdASO1flfp2Ir3iqgD4GnPm5jI3WAqFD
qgREoLcnttCpjoNmawjkHhV8pGotnLLXhHW3wv4xGMxUgPbyYTAWt8aXBPQ10MtM
B5YeK4hw7Ba0MCH6JGom8kgX/MhVB0jB9rlnmGPkZpXAd9+vxTjZUlF1YPIzx0Z+
ro0FALq5z7wJg0vig1am8HKnyqqhOeth4KEOUd9BBNfCYx0p6w==
a
rsa-sha2-256 Generally considered secure a
2048-bit key
b3:5d:c1:fb:94:69:ad:a4:1b:b9:b9:51:95:52:2a:1d
AAAAB3NzaC1yc2EAAAABIwAAAQEAxmwcHEwigjMuh8kDMpStcEkI0uubKAR8j7FE
NDkV/c3+WKCUDNk91ggbuD/05L8KfIbAA8HuUITiSNproGJaZ9UjikGTXWqB0IwU
sLpifYRh0cjI1/u8jJNljynTa9xubkusYdASO1flfp2Ir3iqgD4GnPm5jI3WAqFD
qgREoLcnttCpjoNmawjkHhV8pGotnLLXhHW3wv4xGMxUgPbyYTAWt8aXBPQ10MtM
B5YeK4hw7Ba0MCH6JGom8kgX/MhVB0jB9rlnmGPkZpXAd9+vxTjZUlF1YPIzx0Z+
ro0FALq5z7wJg0vig1am8HKnyqqhOeth4KEOUd9BBNfCYx0p6w==
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 1024-bit group. Group is less than 2048 bits
DB662973FB21C0B7BF21AB46AFD3E2002AE70C92DE6B9AEAFECF7B0A96D7ACB0
24B7C29DB18E70CB945FA54C7773519BC7161648AFE4939058AC40ECDBBD3636
F5BF45863117E955007C9D0F9333BB4EF62F7C9F6298AB79A309C734F3CF201C
61EBC3926ADD4E80968A65D9F60535164ACE7A7BFEDC1022002BB2BBA3C9BB83
f
2048 bit request 2048-bit group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3072 bit request 3072-bit group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4096 bit request 4096-bit group
EF7840BC7248E3E12D223BD86584358750562F5FCB298632E269C7F4347DC441
CEBCBAF5B8AD25C3A3EE85A97FC342EF2B320425ACE6A816200E4A46596E6D91
1E8E5940E4ED1F64275D1A2A1E2DC8A34E26026A8DD9D20AF2E36B2BEB467168
E516F1DF9145DBA60CE4BE46B34E918D36F581B2860BEBD153A09BF5B5134813
7CEB0BFA43FDEF5398C538CB9854BED966017DC918E4EA26E0E1A283AEA90F41
B2D27CBC34E6AA64FE7E370D532BE4A0DB2E77958CA6E570DEDA817FB91351B6
5E227BAF96383323820AC5CF785CD686E99398773DF19C1E33D7199A5104337A
D3C8CF78FE1AF5D8A4A2B8C092E1FD2688F2829E006C050257DC4C16576AB12A
C01AE40F35785586902058735024E0CF90B1DD3B547647AC6F98A70BE3CA9EF8
0E9A1E408D29FDBE7935625B9AB863891D6D30A54903DD23933303055B8E8647
51CEB7A153A841D2E1CD3C5943C7F6F1BB2836ED387BE4FB3075363317A1E813
965497F5CC621A72B1CF5B50813B418F391FB7C4530B6C19416B4A9420630127
98536BBF853166697747F39827832A3D135ABFB03BF15990787F64D25E629ED1
A6009BADF5447730445ACF2684715A84ECBC4B3A1E2C93E3EFCF4D9373E13557
40776F66353576D7359C69EAE48FCFB06CA7536F4B132BFCE6DB2FDBD687B24E
7A0AD1EBCBF887A7258C24D8AC9BB86BF847D9AC980919AD9BAF3F2A01842FE7
a
6144 bit request 6144-bit group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8192 bit request 8192-bit group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Message Authentication

hmac-sha1 SHA1 is broken f
hmac-sha2-512 Generally considered secure a
hmac-sha2-512-etm@openssh.com Generally considered secure a
hmac-sha2-256-etm@openssh.com Generally considered secure a
umac-128-etm@openssh.com Generally considered secure a

Encryption

aes256-ctr Generally considered secure a
aes192-ctr Generally considered secure a
aes128-ctr Consider upgrading to 192- or 256-bit b
aes256-gcm@openssh.com Generally considered secure a
aes128-gcm@openssh.com Consider upgrading to 192- or 256- bits. b
chacha20-poly1305@openssh.com Generally considered secure a