class ChefConfig::Config

def self.enable_fips_mode
  OpenSSL.fips_mode = true
  require "digest"
  require "digest/sha1"
  require "digest/md5"
  # Remove pre-existing constants if they do exist to reduce the
  # amount of log spam and warnings.
  Digest.send(:remove_const, "SHA1") if Digest.const_defined?("SHA1")
  Digest.const_set("SHA1", OpenSSL::Digest::SHA1)
  OpenSSL::Digest.send(:remove_const, "MD5") if OpenSSL::Digest.const_defined?("MD5")
  OpenSSL::Digest.const_set("MD5", Digest::MD5)
  ChefConfig.logger.debug "FIPS mode is enabled."
end