Project : cascade

Section: Application Domains

Stream Ciphers

Right after the selection of AES, research on block ciphers decreased: a strong block cipher is now available, with various security levels. However, AES does not solve the whole symmetric encryption problem, since encrypting streams of data, audio, video, etc requires stream ciphers. Modes of operation can of course be used, but they are often too costly. The eStream project has thus been launched by ECRYPT to address this lack of schemes. Now that the project is closed, stream ciphers remain a major issue in cryptography.