Book Image

Security with Go

By : John Daniel Leon
Book Image

Security with Go

By: John Daniel Leon

Overview of this book

Go is becoming more and more popular as a language for security experts. Its wide use in server and cloud environments, its speed and ease of use, and its evident capabilities for data analysis, have made it a prime choice for developers who need to think about security. Security with Go is the first Golang security book, and it is useful for both blue team and red team applications. With this book, you will learn how to write secure software, monitor your systems, secure your data, attack systems, and extract information. Defensive topics include cryptography, forensics, packet capturing, and building secure web applications. Offensive topics include brute force, port scanning, packet injection, web scraping, social engineering, and post exploitation techniques.
Table of Contents (15 chapters)

Encryption

Encryption is different from hashing because it is reversible and the original message can be recovered. There are symmetric encryption methods that use a password or a shared key to encrypt and decrypt. There are also asymmetric encryption algorithms that operate with a public and private key pair. AES is an example of symmetric encryption, and it is used to encrypt ZIP files, PDF files, or an entire filesystem. RSA is an example of asymmetric encryption and is used for SSL, SSH keys, and PGP.

Cryptographically secure pseudo-random number generator (CSPRNG)

The math and rand packages do not provide the same amount of randomness that the crypto/rand package offers. Do not use math/rand for cryptographic applications...