2.The text discusses computer's principle and method of special information encipher and decipher. The text indicates program example of encipher and decipher and its actual application.
1.Nowadays " end-to-end" encryption—the method of enciphering your messages so that they look garbled to anyone who should intercept them en route—is widely available on apps such as Meta's WhatsApp, Apple's iMessage and Signal.
,“端到端”加密——一种对你的消息进行加密的方法,使它们在途中被任何应该拦截它们的看是乱码——在 Meta 的 WhatsApp、Apple 的 iMessage 和 Signal 等应用程序上广泛使用。机翻