Berlin Wall near Potsdamer Platz where the stretch of both walls is marked, giving visitors an impression of the dimension of the barrier system. After the fall of Berlin Wall, there were initiatives that they want to preserve the death strip walkways and redevelop it into a hiking and cycling area, known as Berliner Mauerweg. It is part of the initiative by Berlin Senate since 2005. For many years after reunification, people in Germany talked about cultural differences between East and West Germans (colloquially "Ossis" and "Wessis"), sometimes described as "Mauer im Kopf" (The wall in the head). A September 2004 poll
Meet-in-the-middle attack of a block cipher in 1977. Their attack used a space–time tradeoff to break the double-encryption scheme in only twice the time needed to break the single-encryption scheme. In 2011, Bo Zhu and Guang Gong investigated the "multidimensional meet-in-the-middle attack" and presented new attacks on the block ciphers GOST, KTANTAN and Hummingbird-2. Assume someone wants to attack an encryption scheme with the following characteristics for a given plaintext "P" and ciphertext "C": where "ENC" is the encryption function, "DEC" the decryption function defined as "ENC" (inverse mapping) and "k" and "k" are two keys. The naive approach at brute-forcing this