Method generate_salt

lib/bcrypt/engine.rb:81–95

Generates a random salt with a given computational cost.

(cost = self.cost)

    # Generates a random salt with a given computational cost.
    def self.generate_salt(cost = self.cost)
      cost = cost.to_i
      if cost > 0
        if cost < MIN_COST
          cost = MIN_COST
        end
        if RUBY_PLATFORM == "java"
          Java.bcrypt_jruby.BCrypt.gensalt(cost)
        else
          __bc_salt("$2a$", cost, OpenSSL::Random.random_bytes(MAX_SALT_LENGTH))
        end
      else
        raise Errors::InvalidCost.new("cost must be numeric and > 0")
      end
    end

    # Returns true if +salt+ is a valid bcrypt() salt, false if not.
    def self.valid_salt?(salt)