Match each cryptographic component of a digital signature with its primary function: Components: 1. Signer's private key 2. Signer's public key 3. Cryptographic hash function 4. Digital certificate Functions: A. Produces a fixed-length digest representing the original message B. Used by the sender to generate the digital signature C. Used by any recipient to verify the digital signature D. Binds an individual or entity's identity to their public key

### The pairs | Item | Matches | Why | |---|---|---| | Private key | Used by the sender to create the signature | The sender keeps this key secret and uses it to sign. | | Public key | Used by the recipient to verify the signature | It is the shareable key corresponding to the private signing key. | | Hash | Compact value calculated from document contents | It summarizes the contents for the signature workflow and changes when the document changes. | | Encryption | Conceals readable data | Encryption protects confidentiality, unlike signing, which checks authenticity and integrity. | ### Terms - **Private key**: A secret key held by its owner. - **Public key**: A key that can be shared. - **Hash**: A compact value calculated from data. - **Encryption**: Transforming data to conceal it from unauthorized readers. ### Remember The signing key, verification key, content hash, and concealment operation have different roles.