Friday, July 5, 2013

Set Condition 1 Throughout the Ship

Defcon (Defense Condition) 1993 yılında başlatılmış uluslararası bir oluşumdur. Defcon Türkiye ekibi olarak hedefimiz, Türkiye içinde güvenlik konusuyla ilgilenen insanların tanışabileceği ve bilgilerini paylaşabileceği bir oluşum olmaktır.

Her ay düzenli olarak yapılacak toplantılarda, gruptan bir kişi uzman olduğu konuda bilgi paylaşımında bulunacaktır.

Mail grubuna dahil olmak istiyorsanız, http://groups.google.com/group/defcon-turkey adresinde üyelik için istekte bulunabilirsiniz.

Saturday, September 10, 2011

A new security guru

Cryptovirology is a field that studies how to use cryptography to design powerful malicious software. The field was born with the observation that public-key cryptography can be used to break the symmetry between what an antivirus analyst sees regarding a virus and what the virus writer sees. The former only sees a public key whereas the latter sees a public key and corresponding private key. The first attack that was identified in the field is called "cryptoviral extortion". In this attack a virus, worm, or trojan hybrid encrypts the victim's files and the user must pay the malware author to receive the needed session key (which is encrypted under the author's public key that is contained in the malware) if the user does not have backups and needs the files back. The field also encompasses covert attacks in which the attacker secretly steals private information such as private keys. An example of the latter type of attack are asymmetric backdoors. An asymmetric backdoor is a backdoor (e.g., in a http://www.cryptovirology.org) that can be used only by the attacker, even after it is found. This contrasts with the traditional backdoor that is symmetric, i.e., anyone that finds it can use it. Kleptography, a subfield of cryptovirology, is concerned with the study of asymmetric back doors in key generation algorithms, digital signature algorithms, key exchanges, and so on.

http://www.cryptovirology.org

Sunday, July 5, 2009

Roster (Üyeler)

Haramitsu
Security Specialist
Istanbul, Turkey
Field: Infosec Guy
deviloflaplace@gmail.com

PaSa
Software Engineer
Coventery, England
Field: iPhone Security
selcuk@gorgulu.com

Phytian
Computer Scientist
Istanbul, Turkey
Field: Internet Technology & Security
phytian@csexploits.com

Coding
Software Engineer
Adana, Turkey
Field: Computer Security - General

ByRodi
Software Engineer
Ankara, Turkey
Field: Computer Security - General
byrodi@anti-av.org

Deathless
Social Engineer
Konya, Turkey
Field: Social Engineering
detlis@hotmail.com

Uykusuz
Social Engineer
Giresun, Turkey
Field: Web Security
undetecting@hotmail.com