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  2. Schnorr signature - Wikipedia

    en.wikipedia.org/wiki/Schnorr_signature

    In cryptography, a Schnorr signature is a digital signature produced by the Schnorr signature algorithm that was described by Claus Schnorr. It is a digital signature scheme known for its simplicity, among the first whose security is based on the intractability of certain discrete logarithm problems. It is efficient and generates short ...

  3. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the recipient. [1] [2]

  4. Pretty Good Privacy - Wikipedia

    en.wikipedia.org/wiki/Pretty_Good_Privacy

    A level 0 signature is comparable to a web of trust signature since only the validity of the key is certified. A level 1 signature is similar to the trust one has in a certificate authority because a key signed to level 1 is able to issue an unlimited number of level 0 signatures.

  5. Certificate authority - Wikipedia

    en.wikipedia.org/wiki/Certificate_authority

    When the user's web browser receives the public key from www.bank.example it also receives a digital signature of the key (with some more information, in a so-called X.509 certificate). The browser already possesses the public key of the CA and consequently can verify the signature, trust the certificate and the public key in it: since www.bank ...

  6. XAdES - Wikipedia

    en.wikipedia.org/wiki/XAdES

    An electronic signature that has been created in compliance with eIDAS has the same legal value as a handwritten signature. [2] An electronic signature, technically implemented based on XAdES has the status of an advanced electronic signature. [4] This means that it is uniquely linked to the signatory; it is capable of identifying the signatory;

  7. Qualified electronic signature - Wikipedia

    en.wikipedia.org/wiki/Qualified_electronic_signature

    This device is responsible for qualifying digital signatures by using specific hardware and software that ensures that only the signatory has control of their private key. In addition, a qualified trust service provider manages the signature creation data that is produced. The signature creation data must remain unique, confidential and ...