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info

review

standardnih sifarskih i kriptoanalitickih

algoritama. Pre razvoja naseg tehnickog

resenja izvrsavanje CrypTool simulacio-

nog okruzenja je bilo ograniceno na jedan

racunar sa jednim korisnikom. Obzirom

na modularnu arhitekturu CrypTool soft-

vera, resenje je realizovano u obliku dva

modula koja omoguavaju povezivanje dva

ili vise CrypTool simulacionih okruzenja

koja se izvrsavaju na razlicitim racunarima.

Na taj nacin je omoguena simulacija

slozenih kriptoloskih scenarija, kao i kola-

borativan rad vise korisnika. Ovaj alat nudi

odgovarajui nivo apstrakcije i vizualizacije

u radu sa kriptografskim metodama. Svi da-

nas popularni sifarski algoritmi su dostupni

u vidu gotovih komponenata. Povezivanje

razlicitih rutina vrsi se jednostavnim povezi-

vanjem njihovih grafickih reprezentacija.

Moduli su razvijeni u C# program-

skom jeziku a koriste TCP/IP stek protoko-

la. Korisenjem modula Network Sender

omogueno je mrezno slanje rezultata iz jed-

nog simulacionog okruzenja, dok je modu-

lom Network Receiver omoguen prijem

poslatih podataka i njihovo korisenje u

drugom simulacionom okruzenju.

Broj povezanih okruzenja nije

ogranicen, tako da je omogueno i

izvrsavanje slozenih kriptoloskih scenarija,

kao sto je napad ,,Covek u sredini". Dodatno,

zasnovanost na standardnim telekomunika-

cionim protokolima omoguava i poveziva-

nje sa drugim softverskim okruzenjima sto

otvara novu dimenziju korisenja CrypTool

softvera.

S obzirom na modularnu arhitekturu

CrypTool softvera, resenje je realizovano

u obliku dva modula. Razvijeni moduli su

ukljuceni u zvanicnu distribuciju CrypTool2

softvera i javno su dostupni preko sajta pro-

jekta: http://www.cryptool.org, prvenstveno

korisnicima iz akademskog okruzenja za

primenu u simulacione i edukacione svrhe u

oblasti kriptologije.

Inicijalno planirana primena sistema

jeste mogunost povezivanja razlicitih

CrypTool simulacionih okruzenja u cilju

izvrsavanja slozenih simulacionih scenarija

i kolaborativnog rada korisnika. Sa druge

strane, zasnovanost na standardnim teleko-

munikacionim protokolima otvara nove

mogunosti za povezivanje sa razlicitim

softverskim sistemima.

CrypTool cryptology software enables

simulation scenarios using standard

cryptographic and cryptanalytic algorithms.

Prior to the development of our technical

solutions CrypTool execution simulation

environment was limited to a single computer

with a single user.

Due to the modular architecture

CrypTool, software solution is implemented

as two modules that allow connecting two

or more CrypTool simulation environments

that run on different computers. In this way it

enables the simulation of complex scenarios of

cryptology, and collaborative work of several

users.

The application offers the right level

of abstraction and visualization work with

cryptographic methods. All nowadays popular

cryptosystem algorithms are available in the

form of finished components. Connecting

different routine is done by simply connecting

their graphical representation.

The modules are developed in C #

programming language and they use the

TCP / IP protocol stack. The Network Sender

module enables the network to send the

results of a simulation environment, and

Network Receiver module enable reception of

the transmitted data and use them in another

simulation environment.

Number of connected environments is

not limited, so it is possible to execute complex

cryptology scenarios, such as the attack "Man in

the middle". In addition, the foundation of the

standard telecommunication protocols allows

to connect with other software environments,

which opens up a new dimension to the use of

CrypTool software.

Two developed modules have been

included in the official distribution CrypTool2

software and publicly available through the

website of the project: http://www.cryptool.

org. Modules are interested especially for the

users from the academic environment, for use

in simulation and educational purposes in the

field of cryptology.

System is initially planned for use of its

ability to link different CrypTool simulation

environment to the execution of complex

simulation scenarios, and collaborative effort

of the user. On the other hand, the foundation

of the standard telecommunication protocols

opens up new opportunities to connect with a

variety of software systems.