Digital Signatures

Digital Signatures Definition

• [i] Digital Signatures) - (definition:: Using a private and public key pair to provide proof of origin and integrity of data) - (subject:: Cybersecurity

Digital Signatures Example

The process works as follows:

1. The signer uses their private key to encrypt a hash of the data, creating a digital signature.
2. The recipient uses the signer's public key (from their certificate) to decrypt the signature and verify the hash.
3. If the hashes match, the recipient can be confident that the data has not been tampered with and originated from the expected signer.

Digital signatures provide Nonrepudiation, ensuring that a signer cannot deny their involvement.