cipher

• n. 密码；暗号；零
• vi. 使用密码；计算；做算术
• vt. 计算；做算术；将…译成密码

来自阿拉伯语sifr,零，词源同zero.因为古人早期对数字零的认识不足，该词逐渐被赋予神秘 色彩，词义也由零引申为密码。

1. a message written in a secret code

2. a mathematical element that when added to another number yields the same number

3. a quantity of no importance;

"it looked like nothing I had ever seen before"

"reduced to nil all the work we had done"

"we racked up a pathetic goose egg"

"it was all for naught"

"I didn't hear zilch about it"

4. a person of no influence

5. a secret method of writing

cipher

cipher: [14] The central meaning of cipher is ‘zero’ (a word to which it is related); its use since the 16th century in connection with encrypted communications derives from the fact that in their earliest forms such codes usually consisted of numbers representing letters, and cipher had by then broadened in use from ‘nought’ to ‘any numeral’. It entered English through Old French cifre, which came via medieval Latin cifra from Arabic sifr (source of English zero); this was a nominal use of an adjective meaning ‘empty’.
=> zero

cipher (n.)

late 14c., "arithmetical symbol for zero," from Old French cifre "nought, zero," Medieval Latin cifra, with Spanish and Italian cifra, ultimately from Arabic sifr "zero," literally "empty, nothing," from safara "to be empty;" loan-translation of Sanskrit sunya-s "empty." The word came to Europe with Arabic numerals. Originally in English "zero," then "any numeral" (early 15c.), then (first in French and Italian) "secret way of writing; coded message" (a sense first attested in English 1520s), because early codes often substituted numbers for letters. Klein says Modern French chiffre is from Italian cifra.

cipher (v.)

"to do arithmetic" (with Arabic numerals), 1520s, from cipher (n.). Meaning "to write in code" is from 1560s. Related: Ciphered; ciphering.

a message in cipher

密码信

牛津词典

...converting their messages into ciphers.

把他们的信息转换成密码

柯林斯高阶英语词典

...a cipher clerk.

译电员

柯林斯高阶英语词典

He was little more than a cipher who faithfully carried out the Fuehrer's commands.

他只不过是个走狗，忠实执行元首的命令。

柯林斯高阶英语词典

At last they managed to puzzle out the meaning of the cipher.

最后他们终于弄清楚这符号是什么意思.

期刊摘选

Software of brute force attack on block cipher algorithms is designed based on distributed computing.

暴力破解分组密码算法是密码学的重要研究方向.

期刊摘选

The army uses a special cipher so that military messages are kept secret.

军队使用一种特殊密码,军事电讯因此得以保密.

辞典例句

A system of secret or cipher writing cipher.

一种书写的保密方法.

期刊摘选

A differential cryptanalysis of the iterated block cipher based on the new round function is presented.

对基于此种新轮函数的一种迭代型分组密码进行了差分密码分析.

期刊摘选

The Foreign Office have been pushing us for months to get something on the cipher.

好几个月来,外交部一直在催我们要从密码中了解到一些情况.

辞典例句

Rijndael encryption algorithm is the grouping variable length block cipher.

Rijndael加密算法 是分组长度可变的分组密码.

期刊摘选

Cipher: Our free trial of kungfu has expired.

我们的功夫程序免费试用版本已经过期了啊.

期刊摘选

In cryptography , a cipher produced by a composition of a number of substitution and transposition ciphers.

密码学中, 由替代密码和置换密码结合使用而构成的一种密码.

期刊摘选

I couldn't cipher out his motives.

我猜不出他的动机.

《现代英汉综合大词典》

Of course I could somehow read , write, and cipher; but that was all.

当然,我还能写 、 能读、能算, 仅此而已.

期刊摘选

The block cipher remedies partially some flaws of the known chaotic cryptosystem.

该算法弥补了已有混沌密码系统的一些固有缺陷.

期刊摘选

Encryption is defined as the conversion of data into a form called a cipher.

加密的定义是数据转换成一种叫做密码的形式.

期刊摘选

It's a telegram in cipher.

这是密码电报.

《简明英汉词典》

He's a figment, a cipher, jabberwocky.

他是一个假象, 一个幻影, 一句空话.

电影对白

The paper revolves the cipher system, established and realizes one security practical information safe transmission model.

本文围绕现代密码体制, 建立并实现了一个安全实用的一体化网络安全策略模型.

期刊摘选

A symbol used in secret writing; cipher or code.

用于秘密书写的符号; 暗码或密码.

期刊摘选

Block cipher algorithms encrypt data in block units, rather than a single byte at a time.

块密码算法以块为单位加密数据, 而不是逐个字节地加密数据.

期刊摘选

This hidden information can be plain text, cipher text, or even images.

这些隐藏的信息可以使普通文本 、 密码文本或图像等.

期刊摘选

He's a mere cipher in the company.

他在公司里是个无足轻重的小人物.

《简明英汉词典》

Somethingimportant was concealed in those lines of cipher.

肯定有什么重要的东西藏在这些密文里面.

期刊摘选

All important plans were sent to the police in cipher.

所有重要计划均以密码送往警方.

《现代汉英综合大词典》

a message in cipher

密码信

《牛津高阶英汉双解词典》