Security Topics

• Security Topics
• Introduction
  • ISC2 Certified in Cybersecurity
• Secure Shell (SSH)
• Hypertext Transfer Protocol Secure (HTTPS)
  • Transport Layer Security (TLS)
    • RSA or Diffie-Hellman
      • Diffie-Hellman
• X.509 Digital Certificates
• Ghidra
• Golang
• Reverse Engineering

Introduction

ISC2 Certified in Cybersecurity

Secure Shell (SSH)

Hypertext Transfer Protocol Secure (HTTPS)

Transport Layer Security (TLS)

• Formerly known as Secure Socket Layer (SSL)
  • “Public” key is made public, while “Private” key is owned by a client or origin server.
  • Information is scrambled with a key to make cyphertext, and said key can unscramble the cyphertext
  • Public key cryptography utilizes two keys, one asymmetric for handshake, and the other for symmetric encryption

RSA or Diffie-Hellman

Diffie-Hellman

• exponential key exchange

X.509 Digital Certificates

Ghidra

• an open source reverse engineering tool introduced in RSA Conference, first leaked in Wikileaks and released by the NSA in 2019.

Golang

Reverse Engineering

• Golang compiler preverses some data that may be reverse engineered, and is untouched by the strip utility (on UNIX, see man strip for manual pages on strip utility).