Digital Signatures Concept

Cryptography · Axiom Academy

INTRO Digital Signatures Concept Discover how cryptography ensures authenticity and trust in the digital world. ✍ What is a Digital Signature? Think of sending an important letter in medieval times. How would you prove it came from you? Click the seal button to sign the document! Why Do We Need Digital Signatures? Digital signatures provide three critical security guarantees. Explore each one below. Signatures vs Encryption: What's the Difference? Both use cryptographic keys, but they serve very different purposes. Let's compare them. Digital signatures use asymmetric cryptography. Here's the simple workflow. Digital signatures are the cryptographic tool for proving who sent a message and ensuring it wasn't modified . They're the foundation of trust in digital communications. Sign with your private key , verify with your public key - the opposite of encryption! This reversal is what enables authentication. You'll learn specific signature schemes like RSA signatures, DSA, and ECDSA. You'll also explore how hash functions make signatures efficient and how they're used in real-world protocols.

This is the written version of the interactive lesson above. See the full Cryptography course.