Comprendre la signature électronique 🔑 Blockchain : enjeux et mécanismes cryptographiques 

🎯 Key Takeaways for quick navigation: 00:00 *🔑 Understanding Electronic Signature* - Electronic signature ensures authentication, integrity, and non-repudiation of a document. - Authentication guarantees the identity of the sender, integrity ensures the message remains unchanged, and non-repudiation prevents the sender from denying the authenticity of the message. 01:16 *📝 Practical Implementation of Digital Signature* - Digital signature protocols involve generating private and public keys, signing a message with the private key, and verifying the signature using the corresponding public key. - Only the owner of the private key can generate a valid signature, and anyone with the public key can verify it. 02:11 *🔒 Ensuring Public Key Authenticity* - Infrastructure like Certificate Authorities (CAs) validates public keys, issuing certificates containing identity and the public key's signature. - Alice obtains a certificate from a CA, and Bob verifies it using the CA's public key, ensuring Alice's authenticity to Bob. Made with HARPA AI

Un grand merci, une vidéo très bien expliquée