Labs

Overall progress

0 / 267 solved

Gögn 0/36
Talnakerfi 0/12

Tvíund í hex 1

25
basic data bases
Open

Tvíund í hex 2

25
basic data bases
Open

Hex í tvíund 1

25
basic data bases
Open

Hex í tvíund 2

25
basic data bases
Open

Grunntalan

50
easy data bases
Open

Grunnávöxtun

50
easy data bases
Open

Tvíund í tug 1

75
medium data bases
Open

Tvíund í tug 2

75
medium data bases
Open

Tug í tvíund 1

75
medium data bases
Open

Tug í tvíund 2

75
medium data bases
Open

Sautjándakerfið

100
medium data bases
Open

Grunntala sextíu

100
medium data bases
Open
Kóðun rittákna 0/11

Talnatexti

25
basic data encoding ascii
Open

Bitatexti

25
basic data encoding ascii binary
Open

Texti í sjö bitum

25
basic data encoding ascii binary
Open

Texti í sextán bitum

25
basic data encoding ascii hex
Open

Nútímakóðun

25
basic data encoding utf-8 binary
Open

Latína fyrir mér

50
easy data encoding iso-8859-1
Open

Brenglaðir stafir

50
easy data encoding utf-8 mojibake
Open

Auka núll

50
easy data encoding utf-16
Open

Háendaframsetning

50
easy data encoding utf-16 endianness
Open

Risatölvan

50
easy data encoding ebcdic
Open

Ekki allt sem sýnist

75
medium data encoding unicode steganography
Open
Gagnakóðun 0/13

PPM 1

25
basic data encoding ppm
Open

PPM 2

25
basic data encoding ppm binary-data
Open

PPM 3

50
easy data encoding ppm escape-sequences
Open

Hex-myndin

50
easy data encoding hex ppm
Open

Mynd í Base64

50
easy data encoding base64 ppm
Open

Hvaða kóðun?

75
medium data encoding base32 base64 hex
Open

Margföld kóðun

25
basic data encoding base64
Open

Hex og Base64

50
easy data encoding hex base64
Open

Tvíund í hex

50
easy data encoding binary hex
Open

Þreföld kóðun

75
medium data encoding base32 base64 hex
Open

Tvöföld textakóðun

75
medium data encoding base85 base64
Open

Þreföld blanda

75
medium data encoding binary base32 base85
Open

Fimm skrefa fáninn

100
hard data encoding base64 hex base32 base85 multi-step
Open
Linux 0/82
Skráakerfið 0/9

Skógræktin

25
basic linux filesystem
Open

Leyniskjölin

25
basic linux filesystem
Open

Biluð færsla

25
basic linux filesystem
Open

Röð og regla

50
easy linux filesystem
Open

Ljósritunarvélin

50
easy linux filesystem
Open

Tómar möppur

50
easy linux filesystem
Open

Ekki yfirskrifa

50
easy linux filesystem
Open

Keyrsluheimild

50
easy linux filesystem permissions
Open

Algjört leyndarmál

50
easy linux filesystem permissions
Open
Vinna með skrár 0/12

Tíu fyrstu

25
basic linux files
Open

Lokaorðin

25
basic linux files
Open

Línuteljarinn

25
basic linux files
Open

Rangar endingar

50
easy linux files
Open

Nál í heystakki

25
basic linux files strings
Open

Óþarfa endurtekningar

50
easy linux files
Open

Kippa 1

50
easy linux archives tar
Open

Kippa 2

50
easy linux files
Open

Kippa 3

75
medium linux files
Open

Pakki í pakka

75
medium linux files
Open

Laskað PPM

75
medium linux files
Open

Verkefnalistinn

50
easy linux files
Open
Leitað og farið yfir 0/21

Sííís

25
basic linux grep
Open

Hátt og lágt

25
basic linux grep
Open

Út með ruslið

25
basic linux grep
Open

Yfirfærsla

50
easy linux filesystem
Open

Lestu mig

50
easy linux find
Open

Innihaldið skiptir máli

50
easy linux grep
Open

Grynningar

50
easy linux find
Open

Aðeins skrár

50
easy linux find
Open

Fullkomin stærð

50
easy linux find
Open

Tímabil

75
medium linux find
Open

Nýjasta nýtt

75
medium linux find
Open

Smölun

75
medium linux find
Open

Gild auðkenni

50
easy linux grep
Open

Gölluð eintök

75
medium linux grep
Open

Rótargreining

50
easy linux grep
Open

Alvöru skeljar

50
easy linux grep
Open

Hvað gerðist?

75
medium linux grep
Open

Mælistikan

75
medium linux find
Open

Lesið í bætin

75
medium linux grep find
Open

Opið hús

75
medium linux find permissions
Open

Allt í einu

100
hard linux find
Open
Pípur og staðalstraumar 0/28

Vörutalning

25
basic linux redirection
Open

Bannað að skemma

25
basic linux redirection
Open

Bara tölur

50
easy linux redirection
Open

Kljúfum strauminn

50
easy linux redirection
Open

Sameinum strauminn

75
medium linux redirection
Open

Broskarlatalning

50
easy linux pipes
Open

Hver mætti?

50
easy linux pipes
Open

Lágstafir eingöngu

50
easy linux pipes
Open

Ein í einu

50
easy linux pipes
Open

Þrengsli

50
easy linux pipes
Open

Orðaskipti

50
easy linux pipes
Open

Aðalatriðin

50
easy linux pipes
Open

Topplistinn

75
medium linux pipes
Open

Vinsældakeppnin

75
medium linux pipes
Open

Skeljatalning

75
medium linux pipes
Open

Plássþjófurinn

75
medium linux pipes
Open

Hreingerning

75
medium linux pipes
Open

Troðnar slóðir

75
medium linux pipes
Open

Innbrotstilraunir

75
medium linux pipes
Open

Sökudólgarnir

75
medium linux pipes
Open

Tiltekt

75
medium linux pipes
Open

Látið í té

75
medium linux pipes
Open

Línutalning

75
medium linux pipes
Open

Bilaðar skrár

100
hard linux pipes
Open

Í geymsluna

75
medium linux pipes
Open

Lekar pípur

75
medium linux pipes
Open

Afkóðun

50
easy linux pipes
Open

Púsluspilið

100
hard linux pipes
Open
Kerfið og ferli 0/6

Fyrsta skriftan

25
basic linux scripts
Open

Arfur ferla

50
easy linux environment
Open

Draumahöll í dvala

50
easy linux processes
Open

Í biðstöðu

50
easy linux processes
Open

Ein stöðvun

50
easy linux processes
Open

Hver er að keyra?

75
medium linux path
Open
Notendur og heimildir 0/3

Vinsælar skeljar

50
easy linux users
Open

Hver má hvað?

50
easy linux permissions chmod
Open

Umframheimildir

50
easy linux permissions chmod find
Open
Netið úr skelinni 0/3

Skilaboð á Netinu

25
basic linux networking curl
Open

Mynd á Netinu

25
basic linux networking wget
Open

Pípan

75
medium linux pipes networking
Open
Netkerfi 0/9

Vistfangaflokkun

75
medium networking ipv4 linux grep regex
Open

Halló?

25
basic linux networking netcat
Open

Spurt og svarað

50
easy linux networking netcat
Open

Opnar dyr

50
easy networking ports ss linux netcat
Open

Falið lykilorð

75
medium linux networking netcat grep
Open

Bergmálið

25
basic networking ping ipv4 linux
Open

HTTP í höndunum

75
medium networking netcat tcp http linux pipes
Open

Eftir reglunum

75
medium networking netcat tcp protocols linux
Open

Símaskrá internetsins

25
basic networking dns dig ipv4 linux
Open
Bakhönnun 0/32
Kynning 0/3

Plain Sight

25
basic rev
Open

Jigsaw

25
basic rev
Open

Open Sesame

25
basic rev
Open
Forritunarmálið C 0/4

Decoder Ring

50
easy xor rev
Open

Conveyor Belt

50
easy encoding rev
Open

High Score

50
easy integer-overflow rev
Open

Treasure Map

50
easy pointers rev
Open
Smalamál 0/3

Runestone

50
easy assembly source rev
Open

Rotary Dial

50
easy assembly bit-manipulation source rev
Open

Rube Goldberg

75
medium assembly math source rev
Open
ELF-sniðið 0/3

Secret Compartment

25
basic elf rev
Open

Parallel Worlds

50
easy 32-bit rev
Open

Transparency

50
easy xor rev
Open
Kyrrstæð greining 0/3

Factory Floor

75
medium rev
Open

Tourist Trap

75
medium arm rev
Open

Codebook

50
easy substitution rev
Open
Kvik greining 0/4

Wiretap

50
easy dynamic-analysis ltrace rev
Open

Disappearing Ink

75
medium breakpoints gdb rev
Open

Tumblers

100
hard side-channel rev
Open

Detour

75
medium patching rev
Open
Netforrit 0/2

Speakeasy

75
medium network rev
Open

Smoke Signals

75
medium network rev
Open
Gagnaskipanir 0/4

spell-checker

50
easy algorithm rev
Open

Family Tree

50
easy algorithm rev
Open

Metro Map

75
medium algorithm rev
Open

The Long Way Round

75
medium algorithm rev
Open
Python-verkefni 0/4

Matryoshka

50
easy closures python rev
Open

Pandora's Box

50
easy obfuscation rev
Open

Fossil

75
medium bytecode rev
Open

The Sphinx

100
hard constraints rev
Open
Sýndarvélar og stýriflæði 0/2

Golem

100
hard vm rev
Open

Spaghetti

100
hard control-flow obfuscation rev
Open
Dulritun 0/45
Klassískar dulritunaraðferðir 0/14

Keisaraleg dulritun

25
basic crypto caesar substitution
Open

RÓT vandans

25
basic crypto rot13 caesar
Open

SNÚ18

50
easy crypto caesar icelandic alphabet
Open

Fyrstu verða síðustu

25
basic crypto atbash substitution
Open

Þrautir Caesars

50
easy crypto caesar bruteforce python
Open

Umtalsverð skipti

50
easy crypto substitution alphabet
Open

Stafaóreiða

50
easy crypto transposition padding
Open

Viðargenin

50
easy crypto vigenere polyalphabetic
Open

Dulritunarhjólið

75
medium crypto classical tcp automation multi-step
Open

Dagblaðið Víxlir

75
medium crypto substitution frequency-analysis
Open

Fréttir að heiman

75
medium crypto substitution frequency-analysis icelandic
Open

Vigenéfrétt

75
medium crypto vigenere oracle chosen-plaintext tcp
Open

Vigenère dráttur

75
medium crypto vigenere known-plaintext
Open

Lög og regla

100
hard crypto classical multi-step transposition vigenere
Open
Stærðfræði dulritunar 0/7

Hraðleifar

50
easy crypto math modulo tcp automation
Open

Tvíþætt tala

50
easy crypto math primes factorization
Open

Evklíðskt boðhlaup

50
easy crypto math gcd euclid tcp
Open

Margföldunarandhverfa

75
medium crypto math modular-inverse
Open

Urmull andhverfa

75
medium crypto math gcd modular-inverse tcp
Open

Múgveldi leifanna

75
medium crypto math modular-exponentiation tcp python
Open

Talnalás

100
hard crypto math modulo modular-inverse encoding multi-step
Open
XOR og einskiptislyklar 0/9

Misgilding

25
basic crypto xor bytes hex
Open

Einskiptislykill

50
easy crypto xor otp known-key
Open

One-time Paddington

50
easy crypto xor otp key-reuse known-plaintext
Open

Eintómar bætingar

50
easy crypto xor bruteforce python
Open

Endurteknar bætingar

50
easy crypto xor repeating-key
Open

Upphafsorð

75
medium crypto xor known-plaintext repeating-key
Open

Fyrirsjáanleg eftirsjá

75
medium crypto xor randomness prng bruteforce python
Open

Tvískiptislykill

75
medium crypto xor otp crib-dragging
Open

Margskiptislykill

100
hard crypto xor otp frequency-analysis multi-step
Open
Samhverf dulritun 0/15

Varalykillinn

25
basic crypto aes ecb known-key python
Open

Síðasta sætið

25
basic crypto pkcs7 padding bytes
Open

Diplómatapósturinn

50
easy crypto aes cbc iv encoding
Open

Viðgerð á vettvangi

50
easy crypto aes ctr nonce counter
Open

Pólvaktin

50
easy crypto aes ecb patterns tcp automation
Open

Ekkert að sjá hér

50
easy crypto aes ecb images patterns
Open

Kvittað fyrir móttöku

50
easy crypto aes-gcm aead integrity known-key
Open

Eftir endurræsingu

75
medium crypto ctr nonce-reuse known-plaintext logs
Open

Breyttar pantanir

75
medium crypto aes ctr bit-flipping integrity tcp
Open

Fyrsta farrými

75
medium crypto cbc iv bit-flipping cookies
Open

Viðgerðarbekkurinn

75
medium crypto aes ecb cbc ctr automation tcp
Open

Varist bilið

75
medium crypto ctr counter keystream-reuse offsets
Open

Aðeins fyrir meðlimi

100
hard crypto aes ecb cut-and-paste tokens
Open

Kalkipappír

100
hard crypto aes ecb chosen-plaintext oracle alignment tcp
Open

Næturskjalavörðurinn

100
hard crypto aes cbc padding-oracle adaptive-queries tcp
Open
Eldri verkefni 0/40
Forkeppni 2021 0/13

0pass

75
Dulritun
Open

booksnflags

50
Veföryggi
Open

chapter

75
Dulritun
Open

ciao

25
Veföryggi
Open

confession

50
Veföryggi
Open

dishonesty1

25
Stafræn réttarrannsókn
Open

dishonesty2

50
Stafræn réttarrannsókn
Open

mathematics

50
Dulritun
Open

messyge

25
Ýmislegt
Open

nope

50
Dulritun
Open

redacted2

50
Stafræn réttarrannsókn
Open

scramble

100
Ýmislegt
Open

siden00b

25
Veföryggi
Open
Forkeppni 2022 0/4

Kristinn-Vikar-Jonsson

100
Dulritun
Open

polymer

75
Dulritun
Open

Privacy-Enhanced-Flag

50
Dulritun
Open

quantum-chicken-soup-grass-big-chungus

100
Dulritun
Open
Forkeppni 2023 0/19

animal-generator

25
Bakhönnun
Open

baseic

25
Encoding Ýmislegt
Open

Basic Maths

75
Crypto Ýmislegt
Open

cookie-wookie

50
Veföryggi
Open

exclusivity

50
Dulritun
Open

good-client-bad-client

50
Veföryggi
Open

imperial

25
Dulritun
Open

netcat

25
Ýmislegt
Open

open-window

25
Bakhönnun
Open

open-window-2

25
Bakhönnun
Open

overwrite-me

50
Minnisveikleikar
Open

overwrite-me-too

50
Minnisveikleikar
Open

polynowomial

100
Dulritun
Open

protocol-manipulation

50
Veföryggi
Open

really-simple-assignment1

50
Dulritun
Open

really-simple-assignment2

50
Dulritun
Open

redacted1

25
Stafræn réttarrannsókn
Open

Ret2Win

75
Minnisveikleikar
Open

UnderLeaf

75
Veföryggi
Open
Landskeppni 2023 0/4

cryptolads1

75
Ýmislegt
Open

cryptolads1.5

100
Ýmislegt
Open

cryptolads2

100
Ýmislegt
Open

turning-japanese

25
Ýmislegt
Open
Linux keppnisverkefni 0/22
Forkeppni 2021 0/5

mail-server0

25
Open

mail-server1

25
Open

mail-server2

50
Open

mail-server3

75
Open

mail-server4

100
Open
Forkeppni 2022 0/6

esc-server0

25
Open

esc-server1

25
Open

esc-server2

50
Open

esc-server3

75
Open

esc-server4

75
Open

esc-server5

100
Open
Forkeppni 2023 0/6

Neural Networking 0

25
Open

Neural Networking 2

50
Open

Neural Networking 3

75
Open

Neural Networking 4

75
Open

Neural Networking 4.5

100
Open

Neural Networking 5

100
Open
Hakkaravakan 2022 0/5

Spooky Server 0

50
Open

Spooky Server 1

50
Open

Spooky Server 2

50
Open

Spooky Server 3

75
Open

Spooky Server 4

100
Open
linux/easy 0/1

Neural Networking 1

50
Open