Digital Signatures

Summary

Using asymmetric cryptography to prove a message's authenticity and integrity — the sender signs with their private key, and anyone can verify with the corresponding public key, without revealing the private key.

How to Learn This

1Diagram how a digital signature is created and verified using a public/private key pair.
2Learn the difference between encryption (confidentiality) and signing (authenticity/integrity).
3Understand where digital signatures are used in practice (code signing, document signing, certificates).

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