Digital Signature
A cryptographic mechanism used to verify the authenticity and integrity of digital data.
Common Applications of Drive-By Download Attacks
Ransomware Deployment – Encrypts user files and demands payment.
Spyware & Keyloggers – Monitors keystrokes and steals credentials.
Botnet Recruitment – Turns the victim's device into a bot for DDoS attacks.
Ad Fraud & Cryptojacking – Uses system resources to mine cryptocurrency or generate fraudulent ad revenue.
How Digital Signatures Work
Hashing the Document – A cryptographic hash function (e.g., SHA-256) generates a fixed-size hash of the document.
Encrypting the Hash – The sender encrypts the hash using their private key, creating the digital signature.
Verifying the Signature – The recipient decrypts the signature using the sender’s public key and compares it with a newly computed hash of the document.
Common Applications of Digital Signatures
Secure Email Communications – Ensures that emails are not altered during transmission.
Software Code Signing – Developers use digital signatures to verify that software has not been tampered with.
Legal and Financial Documents – Used in e-signatures and contracts to ensure document integrity.
Blockchain and Cryptocurrency – Ensures transaction authenticity and prevents fraud.