Course description
Symmetric cryptography is one of the two major classifications of cryptographic algorithms. This course describes the main features of a symmetric algorithm and the two main subcategories of symmetric ciphers: block and stream. AES and RC4 are discussed as common examples of a block and a stream cipher.
Syllabus
Course Introduction
Video — 00:01:36
This video introduces the Symmetric Cryptography course.
Fundamentals of Symmetric Cryptography
Video — 00:05:02
This video describes symmetric ciphers and the main classifications of symmetric ciphers.
Block Ciphers
Video — 00:15:13
This video introduces block ciphers and block cipher modes of operations.
The Advanced Encryption Standard (AES)
Video — 00:12:26
This video provides an introduction to the AES and its security.
Stream Ciphers
Video — 00:06:10
This video introduces stream ciphers, the one-time pad and bit-flipping attacks.
Rivest Cipher 4 (RC4)
Video — 00:05:10
This video introduces RC4 and its security.
Meet the author
Howard Poston is a copywriter, author, and course developer with experience in cybersecurity and blockchain security, cryptography, and malware analysis. He has an MS in Cyber Operations, a decade of experience in cybersecurity, and over five years of experience as a freelance consultant providing training and content creation for cyber and blockchain security. He is also the creator of over a dozen cybersecurity courses, has authored two books, and has spoken at numerous cybersecurity conferences. He can be reached by email at howard@howardposton.com or via his website at https://www.howardposton.com.
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