Asymmetric Algorithms Flashcards
What are the three Asymmetric Algorithms you need to know?
Diffie-Hellman (DH)
RSA
Elliptic Curve Cryptography (ECC)
What is Diffie-Hellman best known for?
Conducting key exchange and secure key distribution over an unsecure network. Used for setting up VPN tunnels using IPSec.
What is Rivest, Shamir, Adelman (RSA) best known for?
Algorithm that relies on the mathematical difficulty of factoring large prime numbers.
Key sizes 1024-bits to 4096-bits.
Widely used in organizations. Do you have an authenticator? Then you’re using RSA.
What is Elliptic Curve Cryptography (ECC) best known for?
It’s based on elliptic curves in algebra. It’s primarily used for mobile devices.
It uses a 256-bit key. It is 6x more efficient than an RSA algorithm.
Exam Tip: ECC is most commonly used for mobile devices and low-power computing devices because it gives equivalent protection with lower key sizes.