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2. Digital signature - Wikipedia

   en.wikipedia.org/wiki/Digital_signature

   Download as PDF; Printable version; In other projects ... A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents ...

3. PAdES - Wikipedia

   en.wikipedia.org/wiki/PAdES

   PAdES has 4 levels of verification for digital certificate, from the most simple and basic (b-b, indicating a signature was executed with a certificate that was valid on a date) to the most complex (b-LTV) allowing electronically signed documents to remain valid for long periods (long term validity) even if underlying cryptographic algorithms ...

4. Public key certificate - Wikipedia

   en.wikipedia.org/wiki/Public_key_certificate

   In cryptography, a public key certificate, also known as a digital certificate or identity certificate, is an electronic document used to prove the validity of a public key. [ 1 ] [ 2 ] The certificate includes the public key and information about it, information about the identity of its owner (called the subject), and the digital signature of ...

5. Self-signed certificate - Wikipedia

   en.wikipedia.org/wiki/Self-signed_certificate

   RFC 5280 defines self-signed certificates as "self-issued certificates where the digital signature may be verified by the public key bound into the certificate" [7] whereas a self-issued certificate is a certificate "in which the issuer and subject are the same entity". While in the strict sense the RFC makes this definition only for CA ...

6. Qualified digital certificate - Wikipedia

   en.wikipedia.org/wiki/Qualified_digital_certificate

   A qualified digital certificate can only be issued by a qualified trust service provider that has received authorization from their member state's supervisory body to provide qualified trust services for creating qualified electronic signatures. The provider must be listed upon the EU Trust List; otherwise, they are not permitted to provide ...

7. IdenTrust - Wikipedia

   en.wikipedia.org/wiki/IdenTrust

   As a certificate authority (CA), IdenTrust provides public key infrastructure (PKI) and validation for digital certificates, including TLS/SSL certificates, email security via S/MIME certificates, digital signature certificates, code signing certificates and x.509 certificates for protecting network and IoT devices.