erstellt am 01-06-2018 um 06:49 Uhr      

A digital certificate is necessary for a digital signature because it provides the public key (public key: The nonsecret half of a cryptographic key pair that is used with a public key algorithm. Public keys are typically used when verifying a digital signature or when encrypting data that can be decrypted with the corresponding private key.) that can be used to validate the private key (private key: The secret half of a cryptographic key pair that is used with a public key algorithm. Private keys are typically used when digitally signing data or decrypting data that has been encrypted with the corresponding public key.) that is associated with a digital signature. Digital certificates make it possible for digital signatures to be used as a way to authenticate (authenticate: The process of verifying that people and products are who and what they claim to be. For example, confirming the source and integrity of a software publisher's code by verifying the digital signature used to sign the code.) digital information.