Another advantage of stream ciphers in military cryptography is that the cipher stream can be generated in a separate box that is subject to strict security measures and fed to other devices such as a radio set , which will perform the xor operation as part of their function .
Another advantage of stream ciphers in military cryptography is that the cipher stream can be generated by an encryption device that is subject to strict security measures then fed to other devices , e.g. a radio set , which will perform the xor operation as part of their function .