===== NIST: FIPS PUB 186-4: Digital Signature Standard (DSS) =====
[[dido:public:ra:xapend:xapend.b_stds:tech:nist:start| return to the NIST Standards ]]

<table>
<caption>Data sheet for FIPS PUB 186-4: [[dido:public:ra:xapend:xapend.a_glossary:d:digital_signature|Digital Signature]] Standard (DSS) </caption>
| Title                      | Digital Signature Standard |
| Acronym                    | DSS |
| Version                    | 2013 |
| Series                     | FIPS   |
| Document Number            | FIPS PUB 186-4  |
| Release Date               | July 2013   |
| Download                   | [[https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-4.pdf]] |
</table>
  : **Note**: The following is an excerpt from the official NIST catalog. It is provided here as a convenience and is not authoritative. Refer to the original document as the authoritative reference.
==== Introduction ====
  : //This Standard defines methods for digital signature generation that can be used for the protection
of binary data (commonly called a message), and for the verification and [[dido:public:ra:xapend:xapend.a_glossary:v:validation|validation]] of those
digital signatures. Three techniques are approved.//
    - //The Digital Signature Algorithm (DSA) is specified in this Standard. The specification
      includes criteria for the generation of domain parameters, for the generation of public and
      [[dido:public:ra:xapend:xapend.a_glossary:p:private_key|private key]] pairs, and for the generation and verification of digital signatures.//
    - //The RSA digital signature algorithm is specified in American National Standard (ANS)
      X9.31 and [[dido:public:ra:xapend:xapend.a_glossary:p:public_key|Public Key]] [[dido:public:ra:xapend:xapend.a_glossary:c:cryptography|Cryptography]] Standard (PKCS) #1. FIPS 186-4 approves the use
      of implementations of either or both of these standards and specifies additional
      requirements.//
    - //The Elliptic Curve Digital Signature Algorithm (ECDSA) is specified in ANS X9.62.
      FIPS 186-4 approves the use of ECDSA and specifies additional requirements.
      Recommended elliptic curves for Federal Government use are provided herein.//
  : //This Standard includes requirements for obtaining the assurances necessary for valid digital
    signatures. Methods for obtaining these assurances are provided in NIST Special Publication
    (SP) 800-89, Recommendation for Obtaining Assurances for Digital Signature Applications.//

 
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