Description
Log on as guest (password: shu1eKoo) on machine 37.187.22.21.
You will find the hidden validation key in /home/exploit04/.secret.$> ssh guest@37.187.22.21
Category Archives: CTF
[HackingWeek 2015] [Exploit3] Write Up
Description
Log on as guest (password: shu1eKoo) on machine 37.187.22.21.
You will find the hidden validation key in /home/exploit03/.secret.$> ssh guest@37.187.22.21
[HackingWeek 2015] [Crypto3] Write-up
Description
Alice wants to use the ECDSA signature algorithm.
For this, she chooses to use the elliptic curve equation E where y2 = x3 – x, defined on the finite field with q elements, Fq, with q = 134747661567386867366256408824228742802669457 .She chose P as a base point of order N = 2902021510595963727029 with:
P = (18185174461194872234733581786593019886770620, 74952280828346465277451545812645059041440154)Then, she chooses as secret signature key a random integer d with 1<d<N.
The public key is the point Q=d⊗P where ⊗ is the scalar multiplication on the elliptic curve E.The value of Q is:
Q=(76468233972358960368422190121977870066985660, 33884872380845276447083435959215308764231090)The validation key is given by the value of d.
[HackingWeek 2015] [Net2] Write Up
Description :
Le fichier
pcapsuivant contient une capture réseau d’un scannmap, retrouvez les services qui ont été trouvés sur la machine cible. La clef de validation seraservice1:service2:service3:...en mettant les services par ordre de ports croissants.
[HackingWeek 2015] [Net1] Write Up
Description :
Le fichier pcap suivant contient une capture réseau d’une connexion FTP. La clef de ce challenge est contenu dans l’un des fichiers transférés pendant cette connexion FTP.