For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message using a special rule, known only to you and your intended audience.

Encryption is one of the pillars of modern-day communications. You have devices that use encryption all the time, even if you are not aware of it. There are so many applications and systems using it ...

For the last five years, the FIDO Alliance -- led by Apple, Microsoft, and Google (with other companies in tow) -- has been blazing a trail toward a future where passwords are no longer necessary in ...

The original version of this story appeared in Quanta Magazine. For thousands of years, if you wanted to send a secret message, there was basically one way to do it. You’d scramble the message using a ...

In the context of cryptography, a public key is an alphanumeric string that serves as an essential component of asymmetric encryption algorithms. It is typically derived from a private key, which must ...

As a Bitcoiner, you’re going to need a secure way to communicate privately, without relying on a company to encrypt your data for you. For example, freely available methods with end-to-end encryption ...

Public-key encryption, as noted in the profile of cryptographer Bruce Schneier, is complicated in detail but simple in outline. The article below is an outline of the principles of the most common ...

Public and private keys are the fundamental building blocks of secure transactions in the world of cryptocurrencies. These cryptographic instruments existed long before digital currencies were ...

We don’t know when, but it will happen: Quantum computers will become so powerful that all existing public-key cryptography protections will be quickly crackable. According to Dr. Mark Jackson of ...

Encryption systems used by businesses fall into two broad categories. Private key, or secret key, systems use the same key to encrypt and decrypt data, so you need to keep your key hidden so that no ...