It proves that a message actually came from who it says it came from. If a message can be decrypted with Alice’s public key, it must have been encrypted with Alice’s private key.
Unlike symmetric encryption, which uses one key for everything, asymmetric systems use a : Asymmetric Cryptography.epub
A modern favorite for mobile devices because it provides the same security as RSA but with much smaller keys, saving battery and data. It proves that a message actually came from
Only the intended recipient can read the message. Only the intended recipient can read the message
Primarily used for "key exchange," allowing two parties to create a shared secret over an insecure channel. The Quantum Threat
This "one-way" math ensures that even if a hacker sees your public key, they cannot figure out your private key. It solves the "key distribution problem" because you never have to send your private key over the internet. Why It Matters
One of the oldest and most widely used, based on the difficulty of factoring giant prime numbers.
