What is the function of an electronic signature?

The function of an electronic signature is to verify the identity of the signer. This is achieved by using cryptographic techniques that associate the signer's identity with the signed document, ensuring that the individual who claims to have signed the document is indeed the one who signed it. When an electronic signature is created, it typically involves generating a unique hash of the document which is then encrypted using the signer’s private key. This creates a mathematical proof that links the document to the signer in a way that cannot be easily altered or forged.

This verification is crucial in various contexts, including legal agreements and digital communications, as it establishes trust in the authenticity of the transaction. The reliance on electronic signatures is growing due to their ability to provide a secure and efficient way to conduct business over digital platforms, aligning with modern technological practices and standards.

The other options do not accurately capture the primary role of an electronic signature. For instance, while securely erasing data or compressing file sizes may be functionalities in digital data handling, they do not pertain to the validation of a person's identity in the context of signing documents. Additionally, the creation of duplicate identities is contrary to the purpose of electronic signatures, which is to confirm a single, authentic identity. Thus, option B is the