V2EX ciphertext

Ciphertext

定义 Definition

名词 (n.) 密文;经过加密算法处理后的文本或数据,未经解密无法阅读其原始内容。与"明文"(plaintext)相对。

发音 Pronunciation

/sa.f.tkst/

例句 Examples

The ciphertext was impossible to read without the correct key.
没有正确的密钥,这段密文根本无法阅读。

Modern encryption algorithms produce ciphertext that even the most powerful supercomputers would take centuries to crack through brute force.
现代加密算法生成的密文,即使是最强大的超级计算机,通过暴力破解也需要数个世纪才能攻破。

词源 Etymology

Ciphertextciphertext 两个词组合而成。Cipher 源自阿拉伯语 (ifr),原意为"零"或"空",后经中世纪拉丁语 cifra 传入欧洲,逐渐演变为"密码"或"加密方式"的含义。Text 则来自拉丁语 textus,意为"编织物"或"文本"。这个复合词在20世纪密码学发展过程中被广泛使用,用来特指经过加密处理后的信息,与 plaintext(明文)形成对照。

相关词汇 Related Words

文学与著名作品引用 Literary References

  • Edgar Allan Poe 的短篇小说《金甲虫》(The Gold-Bug, 1843) 是最早涉及密码破译的文学作品之一,其中详细描写了密文的破解过程,被认为普及了密码学的大众兴趣。
  • Simon Singh 的《密码书》(The Code Book, 1999) 系统介绍了从古代到现代的密码学历史,其中多次提及 ciphertext 的概念及其在历史事件中的关键作用。
  • Neal Stephenson 的小说《密码宝典》(Cryptonomicon, 1999) 以二战密码破译与现代数据加密为双线叙事,大量涉及密文的生成与破解。
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