So blockchain uses cryptography and we use hashing.

区块链使用码学，我们使用散列法。

Mr Crowley describes the 16th century as a " golden age" of cryptography.

克劳利将16世纪描述为码学的“黄金时代”。

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

这就模算术的起源，模算术在计算机科学和码学中普遍使用的一个关键概念。

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

首先" 码学" ，它使用码来保证计算机系统和内容的安全。

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

他们发了一种极其强大的加方法， 称为“公钥码术” 。

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

加一种数字或虚拟，由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的码学。

It sounds mean, but this is how cryptography works.

这听起来很刻薄， 但这就码学的工作原理。

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

网络的安全性由公钥码术提供。

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

这场公开竞赛在码学界一件大事。

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

该网络遍布全球， 并受到强大的码学保护。

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

到 1900 年代，码学以加机的形式实了机械化。

And indeed, this is the essence of cryptography.

实际上，这就码学的本质。

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

很快就很明显，DNA 码学可以编码的不仅仅简单的文本。

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

所以码学一门对信息进行置乱或隐藏的艺术。

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

但随着计算机出，加从硬件转往软件。

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

当时，这种数字吸引了对开发新有兴趣的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，码学和码破译一直猫捉老鼠的游戏。

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

所以，在您了解了代码学的所有“关键”部分：对称加、钥交换和公钥码学。

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， 可能涉及码学、计算机编程、 文学和古代玛雅命理学等任何事物。