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An electronic signature, or e-signature, is data that is logically associated with other data and which is used by the signatory to sign the associated data. [1] [2] [3] This type of signature has the same legal standing as a handwritten signature as long as it adheres to the requirements of the specific regulation under which it was created (e.g., eIDAS in the European Union, NIST-DSS in the ...
A digital signature scheme typically consists of three algorithms: A key generation algorithm that selects a private key uniformly at random from a set of possible private keys.
In cryptography, a ring signature is a type of digital signature that can be performed by any member of a set of users that each have keys.Therefore, a message signed with a ring signature is endorsed by someone in a particular set of people.
The ElGamal signature scheme is a digital signature scheme which is based on the difficulty of computing discrete logarithms.It was described by Taher Elgamal in 1985. [1]The ElGamal signature algorithm is rarely used in practice.
The Digital Signature Algorithm (DSA) is a public-key cryptosystem and Federal Information Processing Standard for digital signatures, based on the mathematical concept of modular exponentiation and the discrete logarithm problem.
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.
In cryptography, a Lamport signature or Lamport one-time signature scheme is a method for constructing a digital signature.Lamport signatures can be built from any cryptographically secure one-way function; usually a cryptographic hash function is used.
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.