单词	encipher
释义	encipher /ɪnˈsʌɪfə / /ɛnˈsʌɪfə/ verb [with object] Convert (a message or piece of text) into a coded form: (as adjective enciphered) an enciphered text... In this type of cryptography the encryption function (which enciphers a message) can be computed by anybody, using the public key. Here the message is enciphered word by word (or character by character), where the rule for the encryption of each word is determined by its position in the message. However, just as one side invented an ingenious new way to encipher its messages, so would its enemies discover a clever way of cracking that code. Derivatives encipherment /ɪnˈsʌɪfəm(ə)nt / /ɛnˈsʌɪfəm(ə)nt / noun ... If computer processors become fast enough to factorize the 128 digit numbers that are used for encipherment, we can start to use 512 digit numbers. In 1941 the Germans introduced the Lorenz double encipherment machine which was used to send messages from the German high command to generals in the field. For a stream cipher we can think of the encipherment process as a sequence of the following two operations: change and leave unchanged. Rhymes cipher, fifer, Haifa, knifer, lifer
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