Osama bin Laden was the founder of al-Qaeda, the terrorist organization responsible for the 911 attack on the United States
Is this the end of terrorism or making worse the situation?
1. DMB as the Disrupting Technology
1.Changes in the trend of media industry
Media consumption patterns are slowly but steadily changing the digital home, and wireless connectivity enables similar changes outside the home. Disruptive technologies liberalized content release windows, regulatory changes, and a myriad of factors could dramatically change current trend lines of the customers.
attack ) 이라고 한다.
선택평문공격(Chosen-plaintext cryptoanalysis)
암호 해독자가 사용된 암호기에 접근할 수 있을대 사용하는 공격방법으로 적당한 평문을 선택하여 그 평문에 대응하는 암호문을 얻을 수 있다. 주로 암호 시스템 공격시 사용한다
암호문 단독 공격(ciphertext-only cryptanalysis)
암호 공격(해독)
chosen-plaintext attacks. And their security is based both on the difficulty of finding the secret key from the public key and the difficulty of determining the plaintext from the cryptogram. At present, the most common public-key cryptosystem is the RSA algorithm. The RSA cryptosystem is related to the difficulty of factoring large numbers. But it is conceivable that an entirely different way to