Public-key cryptography | Digital signature schemes | Digital Signature Standard

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. DSA is a variant of the Schnorr and ElGamal signature schemes. The National Institute of Standards and Technology (NIST) proposed DSA for use in their Digital Signature Standard (DSS) in 1991, and adopted it as FIPS 186 in 1994. Four revisions to the initial specification have been released. The newest specification is: FIPS 186-4 from July 2013. DSA is patented but NIST has made this patent available worldwide royalty-free. A draft version of the specification FIPS 186-5 indicates DSA will no longer be approved for digital signature generation, but may be used to verify signatures generated prior to the implementation date of that standard. (Wikipedia).

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Digital Signatures: Part 2

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MATH3411 Problem 99

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Related pages

Extended Euclidean algorithm | ElGamal signature scheme | Cryptlib | Subliminal channel | Libgcrypt | Crypto++ | Fermat's little theorem | Schnorr signature | Modular exponentiation | Cryptographic hash function | RSA (cryptosystem) | Non-repudiation | SHA-1 | Data integrity | SHA-2 | Discrete logarithm | Digital Signature Standard | Message authentication | EdDSA | Digital signature | Public-key cryptography | Modular arithmetic