what is the primary weakness of the des block cipher
Block cipher Due to a block cipher's characteristic as an invertible function, its output becomes distinguishable from a truly random output string over time due to the birthday attack. This property results in the cipher's security degrading quadratically, and needs to be taken into account when selecting a block size. There is a trade-off though as large block sizes can result in the algorithm becoming inefficient to operate.[28] Earlier block ciphers such as the DES have typically selected a 64-bit block size, while newer designs such as the AES support block sizes of 128 bits or more, with some ciphers supporting a range of different block sizes.[29]
Despicable Me 2 Despicable Me 2 is a 2013 American 3D computer-animated comedy film and the sequel to the 2010 animated film Despicable Me. Produced by Illumination Entertainment for Universal Pictures and animated by Illumination Mac Guff, the film was directed by Pierre Coffin and Chris Renaud, and written by Cinco Paul and Ken Daurio. Steve Carell, Russell Brand, Miranda Cosgrove, Elsie Fisher, and Dana Gaier reprise their roles as Gru, Dr. Nefario, Margo, Agnes, and Edith respectively. Kristen Wiig, who played Miss Hattie in the first film, voices agent Lucy Wilde, while Ken Jeong, who played the Talk Show Host, voices Floyd Eagle-san. New cast members include Benjamin Bratt as Eduardo "El Macho" PÃ©rez and Steve Coogan as Silas Ramsbottom, head of the fictional Anti-Villain League (AVL).