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[[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]] | [[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]] | ||
- | A **Digital Signature** is the result of a cryptographic transformation of data that, when properly | + | ==== Definition 1:==== |
+ | A **Digital Signature** according to NIST(( | ||
+ | Elaine Barker, | ||
+ | NIST, | ||
+ | __Recommendation for Key Management: Part 1 - General__, | ||
+ | NIST Special Publication 800-57 Part 1, Revision 5, | ||
+ | May 2020, | ||
+ | Accessed 18 January 2022, | ||
+ | [[https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf]] | ||
+ | )) is the result of a cryptographic transformation of data that, when properly | ||
implemented with a supporting infrastructure and policy, provides the | implemented with a supporting infrastructure and policy, provides the | ||
services of: | services of: | ||
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- Data integrity authentication, and/or | - Data integrity authentication, and/or | ||
- Support for signer non-repudiation. | - Support for signer non-repudiation. | ||
+ | |||
+ | ==== Definition 2 ==== | ||
A **Digital Signature** is a mathematical technique used to validate the authenticity and integrity of a message, software or digital document. It's the digital equivalent of a handwritten signature or stamped seal, but it offers far more inherent security. A digital signature is intended to solve the problem of tampering and impersonation in digital communications. | A **Digital Signature** is a mathematical technique used to validate the authenticity and integrity of a message, software or digital document. It's the digital equivalent of a handwritten signature or stamped seal, but it offers far more inherent security. A digital signature is intended to solve the problem of tampering and impersonation in digital communications. |