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  2. 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]

  3. 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;

  4. Gpg4win - Wikipedia

    en.wikipedia.org/wiki/Gpg4win

    The original creation of Gpg4win was initiated and funded by Germany's Federal Office for Information Security (BSI) in 2005, [3] [4] resulting in the release of Gpg4win 1.0.0 on 6 April 2006; [5] however Gpg4win and all included tools are free and open source software, and it is typically the non-proprietary option for privacy recommended [6] [7] to Windows users.

  5. _NSAKEY - Wikipedia

    en.wikipedia.org/wiki/NSAKEY

    Microsoft requires all cryptography suites that interoperate with Microsoft Windows to have an RSA digital signature.Since only Microsoft-approved cryptography suites can be shipped with Windows, it is possible to keep export copies of this operating system in compliance with the Export Administration Regulations (EAR), which are enforced by the Bureau of Industry and Security (BIS).

  6. 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 ...

  7. Ring signature - Wikipedia

    en.wikipedia.org/wiki/Ring_signature

    Here the sender and the recipient of a message form a group for the ring signature, then the signature is valid to the recipient, but anyone else will be unsure whether the recipient or the sender was the actual signer. Thus, such a signature is convincing, but cannot be transferred beyond its intended recipient.