"A5/1 stream cipher" . "stream cipher" . . . "stream cypher" . "stream ciphers" . "bit stream" . "Stream" . . . "stream-based ciphers" . . . . "synchronous stream cipher" . "Stream_cipher" . "Stream cipher" . . . "stream cipher#Self-synchronizing stream ciphers" . "Combiner" . . "stream" . . "Stream cipher" . . "self-synchronizing stream cipher" . "High speed stream ciphers" . .