German reunification assets. Facilitation of economic development through planning measures failed to close the disparity between East and West, not only in terms of the economic opportunity but also housing conditions and transport options. Tölle states that "the initial euphoria about having become one unified people again was increasingly replaced by a growing sense of difference between Easterners ("Ossis") and Westerners ("Wessis")". The fall of the Wall also instigated immediate cultural change. The first consequence was the closure in East Berlin of politically oriented cultural institutions. The fall of the Berlin Wall and the factors described above led to mass migration from
Meet-in-the-middle attack the data is encrypted, because an exhaustive search on all possible combination of keys (simple brute-force) would take 2 attempts if the data is encrypted with "k"-bit keys "n" times. The MITM is a generic attack which weakens the security benefits of using multiple encryptions by storing intermediate values from the encryptions or decryptions and using those to improve the time required to brute force the decryption keys. This makes a Meet-in-the-Middle attack (MITM) a generic space–time tradeoff cryptographic attack. The MITM attack attempts to find the keys by using both the range (ciphertext) and domain (plaintext) of the composition