Crypto++ 8.4 Free C++ class library of cryptographic schemes

Static Public Member Functions | List of all members
DSA2< H > Class Template Reference

DSA signature scheme. More...

## Static Public Member Functions
static std::string | StaticAlgorithmName ()

## Detailed Description

### template<class H>
class DSA2< H >

DSA signature scheme.

Template Parameters

  H | HashTransformation derived class

The class is named DSA2 instead of DSA for backwards compatibility because DSA was a non-template class.

DSA default method GenerateRandom uses a 2048-bit modulus and a 224-bit subgoup by default. The modulus can be changed using the following code:

      DSA::PrivateKey privateKey;
      privateKey.GenerateRandomWithKeySize(prng, 2048);

The subgroup order can be changed using the following code:

      AlgorithmParameters params = MakeParameters
        (Name::ModulusSize(), 2048)
        (Name::SubgroupOrderSize(), 256);

      DSA::PrivateKey privateKey;
      privateKey.GenerateRandom(prng, params);

See also
  DSA, as specified in FIPS 186-3, Digital Signature Algorithm on the wiki, and NameValuePairs on the wiki.

Since
  Crypto++ 1.0 for DSA, Crypto++ 5.6.2 for DSA2, Crypto++ 6.1 for 2048-bit modulus.

Definition at line 753 of file gfpcrypt.h.

The documentation for this class was generated from the following file:

- gfpcrypt.h