Cryptography is the science of securing information through the use of mathematical techniques to provide security services such as confidentiality, data integrity and entity authentication. Three videos take a closer look at the fundamentals of cryptography in information security and ethical hacking, including the uses of cryptography and an introduction to cryptanalytic attacks. This course offers vocabulary, definitions, tools, cryptographic functions and components, comparing and contrasting symmetric and asymmetric cryptography, tips about obsolete data standards and more.