cipher

英 [ˈsaɪfə(r)]

美 [ˈsaɪfər]

n. 密码; 暗号; 无足轻重的人; 无关紧要的东西; (姓名首字母的)拼合字，花押

复数：ciphers　过去式：ciphered　现在分词：ciphering　第三人称单数：ciphers　过去分词：ciphered　

TOEFL GRE

BNC.22793 / COCA.22546

同义词辨析

zero cipher nil nought【导航词义：零】

zeron. 零；零度；零点；零分

〔辨析〕

普通用词，一般用于表示数字、数量、刻度、比分、电话号码等；表示概率、程度等时，常指微乎其微或根本没有。

〔例证〕

If x is zero, y must be 2.
如果x为零，y肯定是2。
It was 18 degrees below zero.
气温是零下18度。
We won the football game with a score of 4 to zero.
我们以4比0的比分赢得了这场足球比赛。
My chances of winning are almost zero.
我获胜的机会几乎为零。

ciphern. 〈文〉零；不重要的人

〔辨析〕

指数字0或0至9的任何一个阿拉伯数字，强调数字概念；引申则指无足轻重的人。

〔例证〕

reliable ciphers
可靠性数字
223344 is a number of 6 ciphers.
223344是一个6位数。
One followed by two ciphers is 100.
1的后面跟两个0是100。
He's a mere cipher in the committee.
他在委员会里不过是个无名小卒。

niln. 〈英〉零；无

〔辨析〕

多指体育比赛中的比分，或用于认知、价值等程度，常可与 zero 换用。

〔例证〕

Our team won by three goals to nil/zero.
我们队以3比0获胜。
His knowledge of the subject is practically nil/zero.
他在这方面的知识几乎是零。
Their new device reduced labour costs to almost nil/zero.
他们的新装置把劳动成本几乎降为零。

noughtn. 〈英〉零

〔辨析〕

强调数字概念，可与cipher换用；在数字读法上与 zero 相同，可换用。

〔例证〕

nought/zero point one/two three etc.
0.1/0.23等
A million is 1 with six noughts/ciphers after it.
一百万是一后面加六个零。

牛津词典

noun

密码；暗号
a secret way of writing, especially one in which a set of letters or symbols is used to represent others
1. a message in cipher
  密码信
无足轻重的人；无关紧要的东西
a person or thing of no importance
（姓名首字母的）拼合字，花押
the first letters of sb's name combined in a design and used to mark things

柯林斯词典

N-COUNT 密码;暗号
Acipheris a secret system of writing that you use to send messages.
1. ...converting their messages into ciphers.
  把他们的信息转换成密码
2. ...a cipher clerk.
  译电员
N-COUNT 无足轻重的人；走狗;小兵小卒
If you describe someone as acipher, you mean that they have no power and are used by other people to achieve a particular purpose.
1. 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。

英英释义

noun

a message written in a secret code
Synonym:cypher
a secret method of writing
Synonym:cyphercryptographsecret code
a person of no influence
Synonym:cyphernobodynonentity
a quantity of no importance
1. it looked like nothing I had ever seen before
2. reduced to nil all the work we had done
3. we racked up a pathetic goose egg
4. it was all for naught
5. I didn't hear zilch about it
Synonym:nothingnilnixnadanullaughtcyphergoose eggnaughtzerozilchzipzippo
a mathematical element that when added to another number yields the same number
Synonym:zero0noughtcypher

verb

make a mathematical calculation or computation
Synonym:calculatecyphercomputework outreckonfigure
convert ordinary language into code
1. We should encode the message for security reasons
Synonym:codeenciphercypherencryptinscribewrite in code

双语例句

In computer security, unintelligible text or signals produced through the use of cipher systems.
计算机安全学中，通过密码系统产生的不可理解的文字或信号。参阅plaintext。
Currently this method only returns the string "This is Cipher Data".
目前，这个方法仅返回字符串“ThisisCipherData”。
Using these cipher suites the data is encrypted by one end and decrypted by other end.
使用该密码组合时，数据在一端进行加密，在另一端进行解密。
For convenience, it details the chosen plaintext-timing attack implementation by way of example of DES block cipher algorithm.
为了便于说明，文中以分组密码DES算法为例，详述了选择明文-时间攻击的具体实现。
I can't bear such a cipher any longer.
我再也不能忍耐如许一个无用的人了。
I was a cipher in this company.
在这群人中，我是一个微不足道的小角色。
All values in a specific column of a database table are encrypted with the same password provided by the user, the same encryption algorithm, and the same cipher mode.
一个数据库表中某个特定列中的所有值都以用户提供的相同密码、相同的加密算法和相同的加密方式进行加密。
Block cipher in output feedback mode is used to implement the end-to-end key stream generator.
系统使用分组密码的输出反馈模式实现端-端密钥序列发生器。
In order to encrypt communication, sequence cipher in linear congruence was used to image security.
为了进行保密通信，需要对图像进行加密，采用了一种基于线性同余的序列加密方法。
A Design and Analysis of Block Cipher Algorithm
一种基于分组密码算法的设计和分析