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  2. Employees' Provident Fund Organisation - Wikipedia

    en.wikipedia.org/wiki/Employees'_Provident_Fund...

    The EPFO's top decision-making body is the Central Board of Trustees (CBT), [2] [3] a statutory body established by the Employees' Provident Fund and Miscellaneous Provisions (EPF&MP) Act, 1952. [4] As of 2021, more than ₹ 15.6 lakh crore (US$209 billion) are under EPFO management.

  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. Parkerian Hexad - Wikipedia

    en.wikipedia.org/wiki/Parkerian_Hexad

    Utility means usefulness. For example, suppose someone encrypted data on disk to prevent unauthorized access or undetected modifications–and then lost the decryption key: that would be a breach of utility. The data would be confidential, controlled, integral, authentic, and available–they just wouldn't be useful in that form.

  5. Digital Signature Algorithm - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Algorithm

    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 a public-key cryptosystem, a pair of private and public keys are created: data encrypted with either key can ...

  6. Digital Signature Standard - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Standard

    It defines the Digital Signature Algorithm, contains a definition of RSA signatures based on the definitions contained within PKCS #1 version 2.1 and in American National Standard X9.31 with some additional requirements, and contains a definition of the Elliptic Curve Digital Signature Algorithm based on the definition provided by American ...

  7. Electronic signature - Wikipedia

    en.wikipedia.org/wiki/Electronic_signature

    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 ...

  8. BLS digital signature - Wikipedia

    en.wikipedia.org/wiki/BLS_digital_signature

    A BLS digital signature, also known as Boneh–Lynn–Shacham [1] (BLS), is a cryptographic signature scheme which allows a user to verify that a signer is authentic.. The scheme uses a bilinear pairing:, where ,, and are elliptic curve groups of prime order , and a hash function from the message space into .

  9. Undeniable signature - Wikipedia

    en.wikipedia.org/wiki/Undeniable_signature

    An undeniable signature is a digital signature scheme which allows the signer to be selective to whom they allow to verify signatures. The scheme adds explicit signature repudiation, preventing a signer later refusing to verify a signature by omission; a situation that would devalue the signature in the eyes of the verifier.

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