| // password.cpp |
| // |
| // Copyright (c) 2010 |
| // Steven Watanabe |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See |
| // accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| //[password |
| /*` |
| For the source of this example see |
| [@boost://libs/random/example/password.cpp password.cpp]. |
| |
| This example demonstrates generating a random 8 character |
| password. |
| */ |
| |
| |
| #include <boost/random/random_device.hpp> |
| #include <boost/random/uniform_int_distribution.hpp> |
| |
| int main() { |
| /*<< We first define the characters that we're going |
| to allow. This is pretty much just the characters |
| on a standard keyboard. |
| >>*/ |
| std::string chars( |
| "abcdefghijklmnopqrstuvwxyz" |
| "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| "1234567890" |
| "!@#$%^&*()" |
| "`~-_=+[{]{\\|;:'\",<.>/? "); |
| /*<< We use __random_device as a source of entropy, since we want |
| passwords that are not predictable. |
| >>*/ |
| boost::random::random_device rng; |
| /*<< Finally we select 8 random characters from the |
| string and print them to cout. |
| >>*/ |
| boost::random::uniform_int_distribution<> index_dist(0, chars.size() - 1); |
| for(int i = 0; i < 8; ++i) { |
| std::cout << chars[index_dist(rng)]; |
| } |
| std::cout << std::endl; |
| } |
| |
| //] |