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This level combines the old -BES and -EPES levels. This form extends the definition of an electronic signature to conform to the identified signature policy; CAdES-T: B-Level for which a Trust Service Provider has generated a trusted token (time-mark or time-stamp token) proving that the signature itself actually existed at a certain date and time.
The trust service provider has the responsibility to assure the integrity of electronic identification for signatories and services through strong mechanisms for authentication, electronic signatures and digital certificates. eIDAS defines the standards for how trust service providers are to perform their services of authentication and non-repudiation.
KeyInfo element optionally allows the signer to provide recipients with the key that validates the signature, usually in the form of one or more X.509 digital certificates. The relying party must identify the key from context if KeyInfo is not present. The Object element (optional) contains the signed data if this is an enveloping signature.
Identification that the certificate is a qualified certificate for electronic signature; Identification of the qualified trust service provider who issued the qualified certificate, including such information; Corresponding electronic signature validation data and electronic signature creation data; Indication of the certificate's period of ...
In public key infrastructure (PKI) systems, a certificate signing request (CSR or certification request) is a message sent from an applicant to a certificate authority of the public key infrastructure (PKI) in order to apply for a digital identity certificate. The CSR usually contains the public key for which the certificate should be issued ...
XAdES-B-LT (Signature with Long Term Data), Certificates and revocation data are embedded to allow verification in the future even if their original source is not available. XAdES-B-LTA (Signature with Long Term Data and Archive timestamp), By using periodical timestamping (e.g. each year) compromising is prevented which could be caused by ...
When a certificate is issued, it can be stated in its attributes what use cases it is intended to fulfill. For example, a certificate can be issued for digital signature of e-mail (aka S/MIME), encryption of data, authentication (e.g. of a Web server, as when one uses HTTPS) or further issuance of certificates (delegation of authority ...
Alice signs a message—"Hello Bob!"—by appending a signature computed from the message and her private key. Bob receives both the message and signature. He uses Alice's public key to verify the authenticity of the signed message. A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A ...