We use cryptography for many different purposes. In this video, you’ll learn about some of the most common cryptography use cases. << Previous Video: Perfect Forward Secrecy Next: Symmetric Algorithms >>   One of the challenges we have with today’s mobile devices is we’re limited by the amount of battery that we currently have available. […]

Traditional web server encryption has relied on a single private key to provide confidentiality. In this video, you’ll learn about the alternative of perfect forward secrecy. << Previous Video: States of Data Next: Common Cryptography Use Cases >>   When our browser is communicating to a web server over an encrypted channel it’s using SSL,

Data can reside in a few different states. In this video, you’ll learn about data in-transit, data at-rest, and data in-use. << Previous Video: Stream and Block Ciphers Next: Perfect Forward Secrecy >>   Data in-transit is any data that we’re sending across the network. You may also hear this referred to as data in-motion.

It’s common to use encryption methods that best suit the task at hand. In this video, you’ll learn about the differences between stream ciphers and block ciphers. << Previous Video: Steganography Next: States of Data >> We communicate across the network in different ways. And because of this, we use different types of encryption, depending

Sometimes, the information you need is hidden in plain sight. In this video, you’ll learn how steganography can be used to store and hide information. << Previous Video: Cryptographic Keys Next: Stream and Block Ciphers >> The process of obfuscation is when you take one particular topic and you make it much more complex to

The keys used in cryptography may consist of many different characteristics. In this video, you’ll learn about key strength, the key exchange process, and real-time encryption and decryption. << Previous Video: Weak Encryption Next: Steganography >> Cryptography doesn’t rely on security through obscurity. With cryptography, you know practically everything about the cryptographic process. The entire

Not all encryption is equally secure. In this video, you’ll learn what makes an encryption method strong or weak. << Previous Video: Randomizing Cryptography Next: Cryptographic Keys >> When you start comparing different kinds of cryptography, you’ll find that some we refer to as strong cryptography, and others might be considered weak cryptography. We make

We rely heavily on randomization when using cryptography. In this video, you’ll learn about the importance of randomization and how random information is used to provide data security. << Previous Video: Hashing and Digital Signatures Next: Weak Encryption >> In an earlier video, I talked about encryption relying on randomisation. And here’s a good example.

A cryptographic hash can be used for many different tasks. In this video, you’ll learn about hashing, collisions, digital signatures, and more. << Previous Video: Symmetric and Asymmetric Encryption Next: Randomizing Cryptography >> A cryptographic hash allows you to take any amount of data– it can be a small bit of text, or it can