英语词汇“polyalphabetic substitution”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	polyalphabetic substitution
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pol′y•al•pha•bet′ic substitu′tion (pol′ē al′fə bet′ik, pol′ē-),USA pronunciation [Cryptography.] Cryptographya system of substitution that mixes together a number of cipher alphabets in a cryptogram so that each plaintext letter is represented by a cipher that repeatedly changes. Cf. monoalphabetic substitution. poly- + alphabetic 1935–40
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