FIPS 186-4

FIPS 186-4, also known as the Digital Signature Standard (DSS), is a set of guidelines developed by the U.S. government to ensure secure digital signatures. It specifies methods for creating and verifying signatures that confirm the authenticity and integrity of electronic data. Using cryptographic algorithms like DSA and RSA, FIPS 186-4 ensures that digital communications are trustworthy, unaltered, and from legitimate sources, which is crucial for secure government and commercial exchanges. It provides a formal framework to protect data during electronic transactions and communications.