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Digital Signature Algorithm


 

: Alternate meanings for the abbreviation DSA: See DSA (disambiguation)

Verifying

  • Calculate w = (s)-1 mod q
  • Calculate u1 = (SHA-1(m)*w) mod q
  • Calculate u2 = (r*w) mod q
  • Calculate v = ((gu1*yu2) mod p) mod q
  • The signature is valid if v = r

    • DSA is similar to the ElGamal signature scheme.

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◄ Digital Signature Algorithm: Signing
Digital Signature Algorithm: Correctness of the algorithm ►

~ Table of Content ~

►Introduction
►Key generation
►Signing
►Verifying
►Correctness of the algorithm
►See also
►External links

 

 

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