OpenSSL::PKey::DSA.generate

# File tmp/rubies/ruby-3.1.3/ext/openssl/lib/openssl/pkey.rb, line 169
def generate(size, &blk)
  # FIPS 186-4 specifies four (L,N) pairs: (1024,160), (2048,224),
  # (2048,256), and (3072,256).
  #
  # q size is derived here with compatibility with
  # DSA_generator_parameters_ex() which previous versions of ruby/openssl
  # used to call.
  qsize = size >= 2048 ? 256 : 160
  dsaparams = OpenSSL::PKey.generate_parameters("DSA", {
    "dsa_paramgen_bits" => size,
    "dsa_paramgen_q_bits" => qsize,
  }, &blk)
  OpenSSL::PKey.generate_key(dsaparams)
end