Historical substitution ciphers
Brian Sletten discusses the evolution of cryptographic tools throughout history.
![16th century French cypher machine](https://www.oreilly.com/content/wp-content/uploads/sites/2/2020/01/french-cypher-machine-crop-1bba234dada0cc463990df79e839b990.jpg)
This is an excerpt from Brian Sletten’s video training, Encryption: Toward Secure Systems.
Brian Sletten discusses the evolution of cryptographic tools throughout history.
This is an excerpt from Brian Sletten’s video training, Encryption: Toward Secure Systems.