So blockchain uses cryptography and we use hashing.

区块链使用密码学，我们使用散列法。

This was the genesis of modular arithmetic, a critical concept now ubiquitously used in computer science and cryptography.

这就是模算术起源，模算术是现在计算机科学和密码学中普遍使用个关键概念。

First off there is cryptography which is the use of special codes to keep computer systems and content safe.

首先是" 密码学" ，它使用特殊密码来保证计算机系统和内容安全。

They discovered an extremely powerful way to do encryption called " public-key cryptography."

他们发现了极其强密方法， 称为“公钥密码术” 。

A cryptocurrency is a digital or virtual currency secured by cryptography, which makes it nearly impossible to counterfeit or double-spend.

密货币是字或虚拟货币，由密码学保证其几乎不可能伪造或双重消费。

AES balances performance and security to provide practical cryptography.

AES 平衡性能和安全性以提供实用密码学。

It sounds mean, but this is how cryptography works.

这听起来很刻薄， 但这就是密码学工作原理。

The security of the network is provided by public-key cryptography.

网络安全性由公钥密码术提供。

You will not find a solution to political problems in cryptography.

您不会在密码学中找到解决政治问题方法。

This public competition was a big deal in the cryptography community.

这场公开竞赛在密码学界是件事。

This network is spread across the globe and protected by strong cryptography.

该网络遍布全球， 并受到强密码学保护。

By the 1900s, cryptography was mechanized in the form of encryption machines.

到 1900 年代，密码学以密机形式实现了机械化。

And indeed, this is the essence of cryptography.

实际上，这就是密码学本质。

It soon became obvious that DNA cryptography could code for much more than simple text.

很快就很明显，DNA 密码学可以编码不仅仅是简单文本。

So cryptography is the art of scrambling information, or hiding information.

所以密码学是门对信息进行置乱或隐藏艺术。

But with the advent of computers, cryptography moved from hardware into software.

但随着计算机出现，密从硬件转往软件。

At the time, the digital currency attracted the attention of cryptography enthusiasts as well as innovators interested in mining new coins.

当时，这字货币吸引了对开发新货币有兴趣密码学爱好者和投资人。

Throughout history, cryptography and code-breaking has always been this game of cat and mouse.

纵观历史，密码学和密码破译直是猫捉老鼠游戏。

So, now you know all the “key” parts of modern cryptography: symmetric encryption, key exchange and public-key cryptography.

所以，现在您了解了现代密码学所有“关键”部分：对称密、密钥交换和公钥密码学。

The puzzles are incredibly difficult, and can involve anything from cryptography, computer programming, literature, and Ancient Mayan numerology.

这些谜题非常困难， 可能涉及密码学、计算机编程、 文学和古代玛雅命理学等任何事物。