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  2. 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 ...

  3. Elliptic Curve Digital Signature Algorithm - Wikipedia

    en.wikipedia.org/wiki/Elliptic_Curve_Digital...

    The signature is valid if , matches Alice's public key. The signature is invalid if all the possible R points have been tried and none match Alice's public key. Note that an invalid signature, or a signature from a different message, will result in the recovery of an incorrect public key.

  4. 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 ...

  5. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    A digital signature is an authentication mechanism that enables the creator of the message to attach a code that acts as a signature. The Digital Signature Algorithm (DSA), developed by the National Institute of Standards and Technology, is one of many examples of a signing algorithm. In the following discussion, 1 n refers to a unary number.

  6. Cost estimate - Wikipedia

    en.wikipedia.org/wiki/Cost_estimate

    A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate. A cost ...

  7. Digital Signature Services - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Services

    Digital Signature Services (DSS) is an OASIS standard. As part of a Technical Committee (TC), specialising in “signature services”, a “Core” specification was created by the international standardization organization OASIS in 2007.

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