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An infographic detailing the digital signature process, showing sender, transmission, and recipient steps with SHA-256 hashing and verification of fingerprints.

Un'infografica orizzontale su sfondo bianco o grigio chiaro, divisa in tre sezioni principali collegate da frecce: Sezione 1 – Il mittente (a sinistra) Un'icona di persona accanto a un documento elettronico. Dal documento parte una freccia verso il basso che indica l'applicazione della funzione hash (SHA-256), rappresentata da un ingranaggio o un simbolo matematico, che genera un'impronta digitale (una stringa di caratteri esadecimali). L'impronta viene poi cifrata con la chiave privata 🔑 (raffigurata come un lucchetto chiuso o una chiave scura), producendo la firma digitale. Sezione 2 – La trasmissione (al centro) Una freccia o un canale di comunicazione che trasporta insieme il documento + la firma digitale verso il destinatario. Sezione 3 – Il destinatario (a destra) Un'altra icona di persona che riceve il documento. Qui avvengono due operazioni parallele: Il documento ricevuto viene passato di nuovo attraverso la funzione hash, ottenendo una nuova impronta. La firma digitale viene decifrata con la chiave pubblica 🔓 (una chiave più chiara o aperta), ricavando l'impronta originale. Le due impronte vengono confrontate: se coincidono, appaiono un segno di spunta verde ✅ (autenticità + integrità verificate); se differiscono, una croce rossa ❌ (documento alterato o firma non valida). Ver mais

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