CompTIA Security+ SY0-501

One way to slow down an attacker is to make things unclear. In this video, you’ll learn about some common implementations of obfuscation. << Previous Video: Key Stretching Algorithms Next: Wireless Cryptographic Protocols >> What if you didn’t want to encrypt information but you still wanted to make it a little bit more difficult to […]

One way to extend the capabilities of a relatively small key size is to implement key stretching. In this video, you’ll learn about the libraries that application developers can use to stretch their keys. << Previous Video: Hashing Algorithms Next: Obfuscation >> When we’re implementing encryption in our applications, we may find that the encryption

There are many methods and implementations of cryptographic hashing. In this video, you’ll learn about some of the most popular hashing algorithms. << Previous Video: Asymmetric Algorithms Next: Key Stretching Algorithms >> One type of hash that’s been around for a while but you’ll still see it in use today is MD5, or the MD5

Asymmetric encryption has enabled the exchange of symmetric keys, encryption of data, digital signatures, and other significant security features. In this video, you’ll learn about these asymmetric algorithms and their use. << Previous Video: Block Cipher Modes Next: Hashing Algorithms >> One popular form of asymmetric cryptography is the Diffie-Hellman key exchange. This key exchange

Encrypting a block of data can be accomplished using a number of different methods. In this video, you’ll learn about block cipher modes and how these modes operate. << Previous Video: Symmetric Algorithms Next: Asymmetric Algorithms >> One way of encrypting data is encrypting a block of information at a time. We would take a

Symmetric ciphers are some of the most commonly used encryption methods on the Internet. In this video, you’ll learn about DES, 3DES, RC4, AES, Blowfish, and Twofish. << Previous Video: Common Cryptography Use Cases Next: Block Cipher Modes >> DES, or the Data Encryption Standard, was one of the most popular symmetric encryption algorithms in

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. There

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, or

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. By

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